Impurities

  • CAS No.: NA - Olaparib 3-Hydroxypiperazine Impurity

    Olaparib 3-Hydroxypiperazine Impurity

    CAS No. : NA
    Synonyms : 4-(3-(4-(Cyclopropanecarbonyl)-3-hydroxypiperazine-1-carbonyl)-4-fluorobenzyl)phthalazin-1(2H)-one
    Catalog No. : SA37404

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  • CAS No.: 1460272-53-0 - Olaparib Hydroxy Impurity

    Olaparib Hydroxy Impurity

    CAS No. : 1460272-53-0
    Synonyms : 4-((3-(4-(Cyclopropanecarbonyl)piperazine-1-carbonyl)-4-fluorophenyl)(hydroxy)methyl)phthalazin-1(2H)-one
    Catalog No. : SA37403

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  • CAS No.: NA - Olaparib Piperazine Open Ring Analogue

    Olaparib Piperazine Open Ring Analogue

    CAS No. : NA
    Synonyms : N-(2-(Cyclopropanecarboxamido)ethyl)-2-fluoro-N-(2-hydroxyethyl)-5-((4-oxo-3,4-dihydrophthalazin-1-yl)methyl)benzamide 
    Catalog No. : SA37402

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  • CAS No.: 763111-47-3  - Olaparib Descyclopropanecarbonyl Impurity

    Olaparib Descyclopropanecarbonyl Impurity

    CAS No. : 763111-47-3 
    Synonyms : 4-(4-Fluoro-3-(piperazine-4-carbonyl)benzyl)phthalazin-1(2H)-one
    Catalog No. : SA37401

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  • CAS No.: 763113-22-0  - Olaparib

    Olaparib

    CAS No. : 763113-22-0 
    Synonyms : 4-[[3-[[4-(Cyclopropylcarbonyl)-1-piperazinyl]carbonyl]-4-fluorophenyl]methyl]-1(2H)-phthalazinone 
    Catalog No. : SA37400

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  • CAS No.:  2508-80-7 - USP Azacitidine Related Compound C

    USP Azacitidine Related Compound C

    CAS No. : 2508-80-7
    Synonyms : Azacitidine Amine Impurity; 1-β-D-Ribofuranosyl-3-guanylurea
    Catalog No. : SA37503

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  • CAS No.: 6974-32-9 - USP Azacitidine Related Compound B

    USP Azacitidine Related Compound B

    CAS No. : 6974-32-9
    Synonyms : 1-O-Acetyl-2,3,5-tri-O-benzoyl-Beta-D-ribofuranose
    Catalog No. : SA37502

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  • CAS No.: 931-86-2 - USP Azacitidine Related Compound A

    USP Azacitidine Related Compound A

    CAS No. : 931-86-2
    Synonyms : 5-Aza Cytosine; Decitabine Triazinone Impurity; 4-Amino-1,3,5-triazin-2(5H)-one
    Catalog No. : SA37501

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  • CAS No.: 320-67-2 - Azacitidine 

    Azacitidine

    CAS No. : 320-67-2
    Synonyms : 4-Amino-1-β-D-ribofuranosyl-1,3,5-triazin-2(1H)-one
    Catalog No. : SA37500

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  • CAS No.: 547730-06-3 - Terazosin EP Impurity O 

    Terazosin EP Impurity O

    CAS No. : 547730-06-3
    Synonyms : 1,4-bis[(tetrahydrofuran-2-yl)carbonyl]piperazine
    Catalog No. : SA37315

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  • CAS No.: 63074-07-7 - Terazosin EP Impurity N 

    Terazosin EP Impurity N

    CAS No. : 63074-07-7
    Synonyms : 1-[[(2RS)-Tetrahydrofuran-2-yl]carbonyl]piperazine 
    Catalog No. : SA37314

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  • CAS No.: 31350-27-3 - Terazosin EP Impurity M

    Terazosin EP Impurity M

    CAS No. : 31350-27-3
    Synonyms : Prazosin EP Impurity B; 1,4-Bis(furan-2-ylcarbonyl)piperazine ; 1,4-Di(2-furoyl)piperazine
    Catalog No. : SA37313

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  • CAS No.: 40172-95-0  - Terazosin EP Impurity L

    Terazosin EP Impurity L

    CAS No. : 40172-95-0 
    Synonyms : Prazosin EP Impurity D; 1-(Furan-2-ylcarbonyl)piperazine
    Catalog No. : SA37312

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  • CAS No.: 19237-84-4 - Terazosin EP Impurity K

    Terazosin EP Impurity K

    CAS No. : 19237-84-4
    Synonyms : 1-(4-Amino-6,7-dimethoxyquinazolin-2-yl)-4-(furan-2-ylcarbonyl)piperazine
    Catalog No. : SA37311

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  • CAS No.: 152551-75-2 - Terazosin EP Impurity J 

    Terazosin EP Impurity J

    CAS No. : 152551-75-2
    Synonyms : 1-(4-Amino-6,7-dimethoxyquinazolin-2-yl)-4-[(2RS)-2-hydroxypentanoyl] piperazine
    Catalog No. : SA37310

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  • CAS No.: 1177261-85-6 - Terazosin EP Impurity I 

    Terazosin EP Impurity I

    CAS No. : 1177261-85-6
    Synonyms : Terazosin methyl impurity; 1-(4-Amino-6,7-dimethoxyquinazolin-2-yl)-4-[[(2RS,5S)-5-methyltetrahydro furan-2-yl]carbonyl]piperazine
    Catalog No. : SA37309

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  • CAS No.: 105356-90-9 - Terazosin EP Impurity H

    Terazosin EP Impurity H

    CAS No. : 105356-90-9
    Synonyms : 7-O-Desmethyl Terazosin ; 1-(4-Amino-7-hydroxy-6-methoxyquinazolin-2-yl)-4-[[(2RS)-tetrahydrofuran-2-yl]carbonyl]piperazine
    Catalog No. : SA37308

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  • CAS No.: 105356-89-6 - Terazosin EP Impurity G

    Terazosin EP Impurity G

    CAS No. : 105356-89-6
    Synonyms : 6-O-Desmethyl Terazosin; 1-(4-Amino-6-hydroxy-7-methoxyquinazolin-2-yl)-4-[[(2RS)-tetrahydrofuran-2-yl]carbonyl]piperazine
    Catalog No. : SA37307

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  • CAS No.: 109678-71-9 - Terazosin EP Impurity F

    Terazosin EP Impurity F

    CAS No. : 109678-71-9
    Synonyms : 1-(4-Amino-6,7-dimethoxyquinazolin-2-yl)-4-(5-hydroxypentanoyl)piperazine 
    Catalog No. : SA37306

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  • CAS No.: 102839-00-9 (Base); 104965-50-6 (HCl Salt) - Terazosin EP Impurity E

    Terazosin EP Impurity E

    CAS No. : 102839-00-9 (Base); 104965-50-6 (HCl Salt)
    Synonyms : Terazosin USP Related Compound; Prazosin EP Impurity E; 2,2′-(1,4-Piperazinediyl)bis[6,7-dimethoxy-4-quinazolinamine]
    Catalog No. : SA37305

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  • CAS No.:  84050-21-5  - Terazosin EP Impurity D

    Terazosin EP Impurity D

    CAS No. : 84050-21-5 
    Synonyms : 4-Amino-6,7-dimethoxy-2-(4-formyl-1-piperazinyl)quinazoline
    Catalog No. : SA37304

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  • CAS No.: 60547-97-9 - Terazosin EP Impurity C

    Terazosin EP Impurity C

    CAS No. : 60547-97-9
    Synonyms : 4-Amino-6,7-dimethoxy-2-(1-piperazinyl)quinazoline 
    Catalog No. : SA37303

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  • CAS No.: NA - Terazosin EP Impurity B

    Terazosin EP Impurity B

    CAS No. : NA
    Synonyms : 1-(4-Hydroxy-6,7-dimethoxyquinazolin-2-yl)-4-[[(2RS)-tetrahydrofuran-2-yl]carbonyl]piperazine
    Catalog No. : SA37302

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  • CAS No.: 23680-84-4 - Terazosin EP Impurity A

    Terazosin EP Impurity A

    CAS No. : 23680-84-4
    Synonyms : 4-Amino-2-chloro-6,7-dimethoxyquinazoline
    Catalog No. : SA37301

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  • CAS No.: 63590-64-7 - Terazosin

    Terazosin

    CAS No. : 63590-64-7
    Synonyms : 1-(4-Amino-6,7-dimethoxy-2-quinazolinyl)-4-[(tetrahydro-2-furanyl)carbonxyl]piperazine
    Catalog No. : SA37300

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  • CAS No.: 52977-95-4 - 3-(4-Chlorophenyl)-4-hydroxybutyric Acid

    3-(4-Chlorophenyl)-4-hydroxybutyric Acid

    CAS No. : 52977-95-4
    Synonyms : 4-Chloro-β-(hydroxymethyl)-benzenepropanoic Acid; β-(p-Chlorophenyl)-γ-hydroxybutyric Acid
    Catalog No. : SA28111

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  • CAS No.: 66514-99-6 - (S)-Baclofen

    (S)-Baclofen

    CAS No. : 66514-99-6
    Synonyms : (+)-Baclofen; L-Baclofen; S(+)-Baclofen; (3S)-4-Amino-3-(p-chlorophenyl)butyric acid; (βS)-β-(Aminomethyl)-4-chlorobenzenepropanoic Acid; (S)-4-Amino-3-(4-chlorophenyl)butanoic Acid
    Catalog No. : SA28110

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  • CAS No.: NA - Dibaclofen Urea Mono Lactum

    Dibaclofen Urea Mono Lactum

    CAS No. : NA
    Synonyms : 3-(p-Chlorophenyl)-4-{[4-(p-chlorophenyl)-2-oxo-1-pyrrolidinyl]carbonylamino}butyric acid
    Catalog No. : SA28109

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  • CAS No.: NA - Baclofen Butylester

    Baclofen Butylester

    CAS No. : NA
    Synonyms : Butyl 4-amino-3-(p-chlorophenyl)butyrate
    Catalog No. : SA28108

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  • CAS No.: NA - Dichloro Baclofen

    Dichloro Baclofen

    CAS No. : NA
    Synonyms : 4-Amino-3-(3,4-dichlorophenyl)butyric acid
    Catalog No. : SA28107

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  • CAS No.: 53911-68-5 - 3-(4-chlorophenyl)glutaric anhydride

    3-(4-chlorophenyl)glutaric anhydride

    CAS No. : 53911-68-5
    Synonyms : 4-(p-Chlorophenyl)-4,5-dihydro-3H-pyran-2,6-dione; 4-(4-Chlorophenyl)oxane-2,6-dione
    Catalog No. : SA28106

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  • CAS No.: 84803-46-3 - 3-(4-Chlorophenyl) Glutarimide

    3-(4-Chlorophenyl) Glutarimide

    CAS No. : 84803-46-3
    Synonyms : 4-(p-Chlorophenyl)-2,6-piperidinedione; 4-(4-chlorophenyl)piperidine-2,6-dione;4-(4-chlorophenyl)piperidine-2,6-quinone
    Catalog No. : SA28105

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  • CAS No.: 35271-74-0 - Chlorophenyl glutaric Acid

    Chlorophenyl glutaric Acid

    CAS No. : 35271-74-0
    Synonyms : 3-(p-Chlorophenyl)glutaric acid; 3-(4-Chlorophenyl)glutaric Acid; β-(p-Chlorophenyl)glutaric Acid
    Catalog No. : SA28104

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  • CAS No.: NA - Dibaclofen Urea 

    Dibaclofen Urea

    CAS No. : NA
    Synonyms : 4-{3-[3-Carboxy-2-(p-chlorophenyl)propyl]ureido}-3-(p-chlorophenyl)butyric acid; N,N-Di[3-carboxy-2-(4-chlorophenyl)-propyl]urea
    Catalog No. : SA28103

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  • CAS No.: 69308-37-8 -  (R)-Baclofen

     (R)-Baclofen

    CAS No. : 69308-37-8
    Synonyms : D-Baclofen; 4-Amino-3-(p-chlorophenyl)butyric acid; (R)-4-amino-3-(4-chloropheynl)Butanoic acid; (βR)-β-(AMinoMethyl)-4-chlorobenzenepropanoic Acid
    Catalog No. : SA28102

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  • CAS No.: 1141-23-7 - Baclofen EP Impurity B

    Baclofen EP Impurity B

    CAS No. : 1141-23-7
    Synonyms : (3RS)-5-amino-3-(4-chlorophenyl)-5-oxopentanoic acid; 3-(4-Chlorophenyl)glutaramic Acid; β-(2-Amino-2-oxoethyl)-4-chloro-benzenepropanoic Acid; 3-(p-Chlorophenyl)glutaramic Acid; 3-Carbamoyl-3-(p-chlorophenyl)propionic acid
    Catalog No. : SA28101

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  • CAS No.: 22518-27-0 - Baclofen EP Impurity A

    Baclofen EP Impurity A

    CAS No. : 22518-27-0
    Synonyms : (±)-Baclofen Lactam; USP Baclofen Related Compound A; (4RS)-4-(4-chlorophenyl)pyrrolidin-2-one; 4-(4-Chlorophenyl)-2-pyrrolidinone
    Catalog No. : SA28100

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  • CAS No.: 5581-52-2 - Azathioprine EP Impurity G

    Azathioprine EP Impurity G

    CAS No. : 5581-52-2
    Synonyms : Thiamiprine; Azathioprine USP RC G; Azathioprine BP Impurity G; 6-[(1-Methyl-4-nitro-1H-imidazol-5-yl)sulfanyl]-7H-purin-2-amine
    Catalog No. : SA17908

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  • CAS No.: 68-94-0 - Azathioprine EP Impurity F

    Azathioprine EP Impurity F

    CAS No. : 68-94-0
    Synonyms : Hypoxanthine; 1,7-Dihydro-6H-purin-6-one; Azathioprine BP Impurity F
    Catalog No. : SA17907

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  • CAS No.: 73703-74-9 (free base) ; 35681-68-6 (sodium salt) - Azathioprine EP Impurity E

    Azathioprine EP Impurity E

    CAS No. : 73703-74-9 (free base) ; 35681-68-6 (sodium salt)
    Synonyms : 1-Methyl-4-nitro-1H-imidazol-5-ol sodium salt; Azathioprine BP Impurity E
    Catalog No. : SA17906

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  • CAS No.: 6339-54-4 - Azathioprine EP Impurity D

    Azathioprine EP Impurity D

    CAS No. : 6339-54-4
    Synonyms : 1-Methyl-4-nitro-1H-imidazole-5-thiol; Azathioprine BP Impurity D
    Catalog No. : SA17905

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  • CAS No.: 4897-25-0 - Azathioprine EP Impurity C

    Azathioprine EP Impurity C

    CAS No. : 4897-25-0
    Synonyms : 5-Chloro-1-methyl-4-nitro-1H-imidazole; Azathioprine BP Impurity C
    Catalog No. : SA17904

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  • CAS No.: 157930-13-7 - Azathioprine EP Impurity B

    Azathioprine EP Impurity B

    CAS No. : 157930-13-7
    Synonyms : Mercaptopurine; 7H-Purine-6-thiol; Azathioprine BP Impurity B
    Catalog No. : SA17903

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  • CAS No.: 4531-54-8 - Azathioprine EP Impurity A

    Azathioprine EP Impurity A

    CAS No. : 4531-54-8
    Synonyms : Azathioprine BP Impurity A; Azathioprine USP RC A; 1-Methyl-4-nitro-1H-imidazol-5-amine; 5-Amino-1-methyl-4-nitro-imidazole
    Catalog No. : SA17902

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  • CAS No.: 49808-20-0 - 6-Mercaptopurine Disulfide

    6-Mercaptopurine Disulfide

    CAS No. : 49808-20-0
    Synonyms : 6,6’-Dithiodi-9H-purine; 6,6’-Dithiobis- 1H-purine; 6,6’-Dithiodi-purine; Bis(6-purinyl) disulfide; 1,2-Di(9H-purin-6-yl)disulfane
    Catalog No. : SA17901

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  • CAS No.: 446-86-6 - Azathioprine

    Azathioprine

    CAS No. : 446-86-6
    Synonyms : Azanin; 6-[(1-Methyl-4-nitro-1H-imidazol-5-yl)sulfanyl]-7H-purine
    Catalog No. : SA17900

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  • CAS No.: 16617-46-2 - Allopurinol Nitrile Impurity

    Allopurinol Nitrile Impurity

    CAS No. : 16617-46-2
    Synonyms : 3-Amino-1H-pyrazole-4-carbonitrile; 3-Amino-4-pyrazolecarbonitrile; 3-Aminopyrazole-4-carbonitrile
    Catalog No. : SA28917

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  • CAS No.: 321571-07-7 - Allopurinol USP Related Compound F

    Allopurinol USP Related Compound F

    CAS No. : 321571-07-7
    Synonyms : (E/Z)-3-[(2-Cyano-3-ethoxy-3-oxo-1-propenyl)amino]-1H-pyrazole-4-carboxylic acid ethyl ester
    Catalog No. : SA28916

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  • CAS No.: 21314-17-0 - 4-Hydroxy-1-phenylpyrazolo[3

    4-Hydroxy-1-phenylpyrazolo[3,4-d]pyrimidine

    CAS No. : 21314-17-0
    Synonyms : 1,5-Dihydro-1-phenyl-4H-pyrazolo[3,4-d]pyrimidin-4-one; 1-Phenylallopurinol
    Catalog No. : SA28915

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  • CAS No.: 98277-30-6 - 4

    4,6-Dimethoxy-1H-pyrazolo[3,4-d]pyrimidine

    CAS No. : 98277-30-6
    Synonyms : 4,6-Dimethoxy-pyrazolo[3,4-d]pyrimidine
    Catalog No. : SA28914

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