Reference Standards /API Impurities / API Related Compounds / Pharmaceutical Standards
Please click on respective API letter
Synthink Research Chemicals is a producer and supplier of number of pharmaceutical Impurities which are required for pharmaceutical companies to study quality, stability and biological safety of pharmaceutical products. Many API Impurities are available in our stock.
Trace amount of impurity may affect efficacy of the Active Pharmaceutical Ingredient (API). Even sometimes cause unwanted side-effects like- Therefore, their levels should be controlled and monitored. Guidelines and limits for several impurities are described in the respective pharmacopeia monographs.
All Impurities / standards are provided with certificate of analysis (CoA) along with the comprehensive characterization data like 1H-NMR, MASS, HPLC Purity etc. On request, we also provide additional data like 13C-NMR, CHN, TGA, etc.
Click here to check sample CoA along with characterization data.
We are also manufacturer and supplier of several API Impurities listed in United States Pharmacopoeia(USP), European Pharmacopeia (EP), British Pharmacopoeia (BP), Japanese Pharmacopeia (JP), Indian Pharmacopeia (IP) pharmacopoeia, or unknown API impurities, Process Impurities, Degradation Impurities, API Related Compounds and Potential Impurities as per specification / requirement.
Synthink Research Chemicals is mainly active in custom synthesis / manufacturing of Pharmaceutical Impurities / Reference Standards (Pharmacopeial and non-Pharmacopeial), API Impurities as well as working standards which are required for pharmaceutical companies to study quality, stability and biological safety of pharmaceutical products.
In many cases required impurities found in a pharma product is required to custom synthesize / produce. In such cases clients need to send the details of the required product to SynThink.
At Synthink, we produce / make impurities using reliable scientific processes / techniques like organic synthesis techniques, enrichment and isolation by chromatography techniques, degradation and isolation process, etc.
Pharmaceutical (API / Drug) impurities produced by Synthink Research Chemicals can be used for monitoring acquiring and evaluating data that establishes quality, stability and biological safety of pharmaceutical products.
Pharmaceutical Impurities for ANDA / DMF filling
API impurities produced by Synthink Research Chemicals can be used for ANDA / DMF filling and genotoxicity studies.
Custom synthesis of Non Pharmacopeial Reference Standards / Working Standards
We are completely aware that impurities in pharma product is always a matter of worry within different departments of a pharmaceutical company. So, at SynThink we are committed to synthesize and characterize required Working Standards, Pharmacopeial and non-Pharmacopeial Reference Standards, API Impurities as well as other R&D Compounds in a timely manner. Please feel free to request a quote from us.
We are providing impurities related to following APIs:
If you can’t find the product of your interest, please send the details of the required product to SynThink.
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Abacavir Impurities
27 products
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Aceclofenac Impurities
9 products
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Acetaminophen Impurities
13 products
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Aciclovir Impurities
31 products
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Albendazole Impurities
11 products
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Alcaftadine Impurities
8 products
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Allopurinol Impurities
18 products
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Aminocaproic acid Impurities
11 products
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Amiodarone Impurities
14 products
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Amitriptyline Impurities
9 products
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Amlodipine Impurities
18 products
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Anastrozole Impurities
17 products
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Apixaban Impurities
27 products
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Apremilast Impurities
19 products
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Aprepitant Impurities
1 product
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Aripiprazole Impurities
35 products
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Ascorbic Acid Impurities
8 products
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Aspirin Impurities
14 products
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Atenolol Impurities
10 products
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Atomoxetine Impurities
23 products
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Atorvastatin Impurities
63 products
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Avatrombopag Impurities
6 products
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Azacitidine Impurities
9 products
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Azathioprine Impurities
9 products
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Azilsartan Impurities
26 products
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Azithromycin Impurities
16 products
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Baclofen Impurities
12 products
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Beclomethasone Dipropionate Impurities
19 products
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Benazepril Impurities
10 products
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Betamethasone Dipropionate
3 products
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Betamethasone Dipropionate Impurities
10 products
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Betamethasone Impurities
14 products
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Betamethasone Valerate Impurities
11 products
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Bicalutamide Impurities
18 products
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Bisacodyl Impurities
5 products
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Bisoprolol Impurities
19 products
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Bosentan Impurities
10 products
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Brexpiprazole Impurities
31 products
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Brimonidine Impurities
25 products
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Bromfenac Impurities
18 products
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Bromhexine Impurities
10 products
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Budesonide Impurities
31 products
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Building Blocks
57 products
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Bumetanide Impurities
10 products
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Bupropion Impurities
31 products
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Buspirone Impurities
19 products
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Canagliflozin Impurities
21 products
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Candesartan Impurities
10 products
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Cangrelor Impurities
8 products
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Capecitabine Impurities
14 products
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Carbamazepine Impurities
44 products
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Carbidopa Impurities
12 products
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Carfilzomib Impurities
14 products
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Cariprazine Impurities
10 products
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Carisoprodol Impurities
10 products
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Carvedilol Impurities
21 products
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Cefaclor Impurities
10 products
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Cefadroxil Impurities
14 products
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Cefprozil Impurities
20 products
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Celecoxib Impurities
12 products
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Celiprolol Impurities
20 products
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Cephalexin Impurities
17 products
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Cetirizine Impurities
15 products
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Chlorphenamine Impurities
10 products
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Chlorpromazine Impurities
19 products
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Chlorthalidone Impurities
12 products
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Cinacalcet Impurities
15 products
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Cinnarizine Impurities
10 products
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Ciprofloxacin Impurities
26 products
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Citalopram Impurities
19 products
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Clarithromycin Impurities
7 products
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Clindamycin Impurities
7 products
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Clobetasol Propionate Impurities
15 products
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Clomifene Impurities
15 products
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Clomipramine Impurities
9 products
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Clonidine Impurities
5 products
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Clonixin Impurities
5 products
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Clotrimazole Impurities
16 products
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Colesevelam Impurities
15 products
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Cortisone Acetate Impurities
9 products
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Cyclobenzaprine Impurities
8 products
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Dacarbazine Impurities
14 products
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Dapagliflozin Impurities
32 products
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Dapoxetine Impurities
18 products
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Dapsone Impurities
18 products
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Darifenacin Impurities
42 products
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Darunavir Impurities
22 products
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Dasatinib Impurities
9 products
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Decitabine Impurities
13 products
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Deferasirox Impurities
13 products
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Desogestrel Impurities
6 products
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Desonide Impurities
10 products
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Desoximetasone Impurities
10 products
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Dexamethasone Impurities
29 products
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Diacerein Impurities
9 products
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Diazepam Impurities
9 products
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Diclofenac Impurities
15 products
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Dienogest Impurities
14 products
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Diflorasone Acetate Impurities
10 products
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Difluoroprednisolone Impurities
14 products
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Diltiazem Impurities
30 products
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Diphenhydramine Hydrochloride Impurities
1 product
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Diphenhydramine Impurities
5 products
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Dipyridamole Impurities
8 products
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Dolutegravir Impurities
27 products
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Donepezil Impurities
23 products
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Dorzolamide Impurities
21 products
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Doxepin Impurities
11 products
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Duloxetine Impurities
17 products
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Dutasteride Impurities
21 products
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Edoxaban Impurities
17 products
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Efavirenz Impurities
19 products
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Efinaconazole Impurities
15 products
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Eletriptan Impurities
15 products
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Empagliflozin Impurities
24 products
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Emtricitabine Impurities
29 products
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Entacapone Impurities
13 products
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Eplerenone Impurities
14 products
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Equilin Impurities
8 products
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Erlotinib Impurities
28 products
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Ertugliflozin Impurities
11 products
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Escitalopram Impurities
16 products
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Eslicarbazepine impurities
18 products
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Estradiol Hemihydrate Impurities
4 products
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Estradiol Impurities
15 products
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Estradiol Valerate Impurities
18 products
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Estriol Impurities
10 products
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Ethacrynic Acid Impurities
5 products
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Ethambutol Impurities
2 products
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Ethinylestradiol Impurities
38 products
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Ethisterone Impurities
8 products
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Etoricoxib Impurities
16 products
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Etravirine Impurities
13 products
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Exemestane Impurities
32 products
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Ezetimibe Impurities
51 products
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Famotidine Impurities
30 products
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Featured Products
22 products
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Febuxostat Impurities
22 products
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Felodipine Impurities
4 products
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Fenofibrate Impurities
13 products
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Finasteride Impurities
9 products
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Fingolimod Impurities
21 products
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Fluocinonide Impurities
13 products
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Fluorometholone Impurities
15 products
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Fluphenazine Impurities
8 products
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Flurbiprofen Impurities
18 products
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Formoterol Impurities
11 products
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Fosaprepitant Impurities
5 products
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Fulvestrant Impurities
16 products
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Gabapentin Impurities
18 products
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Ganciclovir Impurities
19 products
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Gatifloxacin Impurities
10 products
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Gemcitabine Impurities
20 products
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Gestodene Impurities
13 products
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Glipizide Impurities
20 products
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Glyburide Impurities
6 products
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Glycopyrrolate Impurities
16 products
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Guanine Impurities
9 products
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Halcinonide Impurities
19 products
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Hydrochloroquinoline Impurities
5 products
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Hydrochlorothiazide Impurities
8 products
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Hydrocortisone Impurities
22 products
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Hydrocortisone Valerate Impurities
17 products
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Hydroxyprogesterone Caproate Impurities
5 products
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Hydroxyzine Impurities
8 products
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Ibuprofen Impurities
21 products
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Imatinib Impurities
17 products
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Impurities
5001 products
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Intermediates
130 products
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Iohexol Impurities
19 products
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Ipratropium Bromide Impurities
8 products
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Irbesartan Impurities
18 products
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Irganox Impurities
7 products
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Isavuconazole Impurities
3 products
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Isoproterenol Impurities
6 products
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Isoquinoline Impurities
12 products
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Ketoprofen Impurities
16 products
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Ketorolac Impurities
31 products
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Lamivudine Impurities
21 products
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Lamotrigine Impurities
9 products
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Lansoprazole Impurities
19 products
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Leflunomide Impurities
19 products
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Lenalidomide Impurities
8 products
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Levetiracetam Impurities
2 products
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Levofloxacin Impurities
12 products
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Levomilnacipran Impurities
4 products
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Levonorgestrel Impurities
29 products
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Levothyroxine Impurities
31 products
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Linezolid Impurities
22 products
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Lisinopril Impurities
12 products
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Loratadine Impurities
31 products
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Lorcaserin Impurities
13 products
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Losartan Impurities
34 products
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Loteprednol Impurities
15 products
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Manidipine Impurities
6 products
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Meclofenamic Acid Impurities
4 products
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Medchem Compound
3 products
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Medroxyprogesterone Acetate Impurities
10 products
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Memantine Impurities
1 product
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Mesalamine Impurities
19 products
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Metformin Impurities
8 products
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Methyl Prednisolone Impurities
2 products
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Methylprednisolone Acetate Impurities
12 products
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Methylprednisolone Impurities
22 products
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Metoclopramide Impurities
11 products
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Metoprolol Impurities
24 products
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Midazolam Impurities
8 products
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Milnacipran Impurities
13 products
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Modafinil Impurities
9 products
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Mometasone Furoate Impurities
22 products
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Mometasone Impurities
3 products
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Montelukast Sodium Impurities
2 products
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Moxifloxacin Impurities
20 products
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Naproxen Impurities
16 products
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Naratriptan Impurities
9 products
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Nebivolol Impurities
10 products
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Neostigmine Impurities
17 products
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Niacin Impurities
11 products
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Nicardipine Impurities
12 products
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Nicotine Impurities
13 products
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Nilotinib Impurities
11 products
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Nintedanib Impurities
17 products
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Nitrofurantoin Impurities
12 products
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Nitrosamine Impurities
3 products
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Nizatidine Impurities
17 products
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Norethindrone Acetate Impurities
16 products
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Norethindrone Impurities
22 products
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Olaparib Impurities
5 products
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Olmesartan Medoxofil Impurities
1 product
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Olmesartan Medoxomil Impurities
55 products
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Omeprazole Impurities
15 products
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Ondansetron Impurities
9 products
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Orphenadrine Impurities
8 products
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Osimertinib Impurities
13 products
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Oxcarbazepine Impurities
18 products
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Oxymetazoline Impurities
8 products
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Palbociclib Impurities
24 products
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Pantoprazole Impurities
13 products
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Paroxetine Impurities
16 products
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Pemetrexed Impurities
21 products
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Penciclovir Impurities
12 products
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Perfenidone Impurities
7 products
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Pitavastatin Impurities
20 products
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Praziquantel Impurities
8 products
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Praziquantle Impurities
1 product
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Prazosin Impurities
17 products
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Prednisolone Impurities
19 products
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Prednisone Impurities
20 products
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Pregabalin Impurities
41 products
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Primidone Impurities
7 products
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Prochlorperazine Impurities
1 product
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Prochlorperazine Maleate Impurities
3 products
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Progesterone Impurities
21 products
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Promethazine Impurities
6 products
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Propranolol Impurities
13 products
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Prucalopride Impurities
11 products
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Quetiapine Impurities
23 products
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Raloxifene Impurities
1 product
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Raltegravir Impurities
19 products
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Ramipril Impurities
18 products
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Ranitidine Impurities
19 products
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Ranolazine Impurities
20 products
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Remdesivir Impurities
61 products
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Remogliflozin Etabonate Impurities
2 products
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Rilpivirine Impurities
17 products
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Risperidone Impurities
23 products
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Rivaroxaban Impurities
30 products
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Roflumilast Impurities
8 products
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Rolaxifene Impurities
22 products
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Ropinirole Impurities
17 products
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Rosuvastatin Impurities
112 products
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Ruxolitinib Impurities
5 products
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Sacubitril Impurities
8 products
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Salbutamol Impurities
18 products
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Salmeterol Impurities
10 products
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Sapropterin Impurities
16 products
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Saxagliptin Impurities
21 products
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Sertraline Impurities
18 products
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Simvastatin Impurities
18 products
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Sitagliptin Impurities
50 products
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Sofosbuvir Impurities
41 products
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Solifenacin Impurities
20 products
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Spironolactone Impurities
10 products
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SQ109 Impurities
1 product
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Sulfamethoxazole Impurities
10 products
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Sulpiride Impurities
12 products
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Sumatriptan Impurities
19 products
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Sunitinib Impurities
11 products
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Tadalafil Impurities
15 products
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Tamoxifen Impurities
17 products
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Telmisartan Impurities
21 products
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Tenofovir alafenamide Impurities
1 product
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Tenofovir Impurities
38 products
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Terazosin Impurities
16 products
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Terbinafine Impurities
23 products
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Terbutaline Impurities
9 products
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Testosterone Impurities
27 products
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Tiagabine Impurities
4 products
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Tibolone Impurities
6 products
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Ticagrelor Impurities
19 products
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Timolol Impurities
23 products
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Tiotropium Impurities
23 products
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Tofacitinib Impurities
22 products
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Tolterodine Impurities
19 products
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Tolvaptan Impurities
11 products
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Topiramate Impurities
3 products
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Tranexamic Acid Impurities
2 products
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Trazodone Impurities
12 products
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Triamcinolone Acetonide Impurities
14 products
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Trimetazidine Impurities
14 products
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Trimethoprim Impurities
16 products
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Trospium Impurities
5 products
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Tulobuterol Impurities
5 products
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Ulipristal Impurities
7 products
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Ursodiol Impurities
10 products
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Valsartan Impurities
18 products
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Varenicline Impurities
14 products
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Venlafaxine Impurities
37 products
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Verapamil Impurities
17 products
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Vildagliptin Impurities
14 products
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Zidovudine Impurities
10 products
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Ziprasidone Impurities
6 products
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Zolmitriptan Impurities
7 products
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Zolpidem Impurities
11 products
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Zopiclone Impurities
7 products