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Impurities

SynThink is a producer and supplier of a number of pharmaceutical Reference Standards (Impurity Standards) which are required for pharmaceutical companies to study quality, stability and biological safety of pharmaceutical products. Many API Impurities are available in our stock.

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Cobicistat, Impurities

Cobicistat API

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Out of Stock

CAS No.

: 1004316-88-4

Mol F.

: C40H53N7O5S2

Mol W.

: 776.03

Cat No.

: SA48600

Cobicistat, Impurities

Cobicistat Cyclized impurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C15H23N3O3S

Mol W.

: 325.43

Cat No.

: SA48613

Cobicistat, Impurities

Cobicistat Dimer Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C28H30N4O4S

Mol W.

: 550.69

Cat No.

: SA48614

Cobicistat, Impurities

Cobicistat Enantiomer Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 1004316-77-1 (Free Base)

Mol F.

: C18H26Cl2N2

Mol W.

: 341.32

Cat No.

: SA48601

Cobicistat, Impurities

Cobicistat Hydroxy Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 1051463-40-1

Mol F.

: C40H53N7O6S2

Mol W.

: 792

Cat No.

: SA48603

Cobicistat, Impurities

Cobicistat Intermediate A Impurity

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Out of Stock

CAS No.

: 1247119-33-0

Mol F.

: C23H27N3O2S.HCl

Mol W.

: 446.01

Cat No.

: SA48615

Cobicistat, Impurities

Cobicistat Morpholine acid Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 1004316-92-0

Mol F.

: C17H28N4O4S

Mol W.

: 384.49

Cat No.

: SA48612

Cobicistat, Impurities

Cobicistat MTV-Imidazole Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 1247119-46-5

Mol F.

: C12H16N4OS

Mol W.

: 264.35000000000002

Cat No.

: SA48611

Cobicistat, Impurities

Cobicistat RRR Isomer

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Out of Stock

CAS No.

: 1051463-82-1

Mol F.

: C40H53N7O5S2

Mol W.

: 776

Cat No.

: SA48607

Cobicistat, Impurities

Cobicistat SSR Isomer

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C40H53N7O5S2

Mol W.

: 776

Cat No.

: SA48605

Cobicistat, Impurities

Cobicistat SSS Isomer

Please enquire for price & pack size

Out of Stock

CAS No.

: 2230789-82-7

Mol F.

: C40H53N7O5S2

Mol W.

: 776

Cat No.

: SA48606

Cobicistat, Impurities

Cobicistat Urea Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 1004316-93-1

Mol F.

: C13H19N3O3S

Mol W.

: 297.39999999999998

Cat No.

: SA48604

Colesevelam, Impurities

Colesevelam Trimethylamine Hydrochloride Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 593-81-7

Mol F.

: C3H9N·HCl

Mol W.

: 95.57

Cat No.

: SA10218

Hydrocortisone Valerate, Impurities

Cortisone

Please enquire for price & pack size

Out of Stock

CAS No.

: 53-06-5

Mol F.

: C21H28O5

Mol W.

: 360.44

Cat No.

: SA27300

Cyclobenzaprine, Impurities

Cyclobenzaprine 3-Hydroxy Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 30235-48-4

Mol F.

: C20H21NO

Mol W.

: 291.39

Cat No.

: SA23107

Cyclobenzaprine, Impurities

Cyclobenzaprine 5-Hydroxy Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 18029-54-4

Mol F.

: C20H23NO

Mol W.

: 293.4

Cat No.

: SA23101

Cyclobenzaprine, Impurities

Cyclobenzaprine Desmethyl Hydrochloride

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Out of Stock

CAS No.

: 438-59-5

Mol F.

: C19H20ClN

Mol W.

: 297.82

Cat No.

: SA23103

Cyclobenzaprine, Impurities

Cyclobenzaprine Dibenzosuberenone Impurity

$85.00 25 mg

Out of Stock

CAS No.

: 2222-33-5

Mol F.

: C15H10O

Mol W.

: 206.24

Cat No.

: SA23106

Cyclobenzaprine, Impurities

Cyclobenzaprine Didesmethyl

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Out of Stock

CAS No.

: 1614-47-7

Mol F.

: C18H18ClN

Mol W.

: 283.8

Cat No.

: SA23104

Cyclobenzaprine, Impurities

Cyclobenzaprine HCl

Please enquire for price & pack size

Out of Stock

CAS No.

: 303-53-7 (Base); 6202-23-9 (HCl)

Mol F.

: C20H22ClN

Mol W.

: 311.85

Cat No.

: SA23102

Carbamazepine, Impurities

Cyheptamide

Please enquire for price & pack size

Out of Stock

CAS No.

: 7199-29-3

Mol F.

: C16H15NO

Mol W.

: 237.3

Cat No.

: SA20336

Impurities, Molnupiravir

Cytidine-4-amino analogue impurity

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Out of Stock

CAS No.

: NA

Mol F.

: C9H13N3O5

Mol W.

: 243.22

Cat No.

: SA46209

Impurities, Molnupiravir

Cytidine-N3-analogue impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 1195711-14-8

Mol F.

: C9H13N3O5

Mol W.

: 243.22

Cat No.

: SA46210

Impurities, Topiramate

D-Fructopiranose Hydrochloride

Please enquire for price & pack size

Out of Stock

CAS No.

: 32785-90-3

Mol F.

: C12H19ClO5

Mol W.

: 278.73

Cat No.

: SA45510

Emtricitabine, Impurities

D-Isomenthol Emtricitanibe Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 23283-97-8

Mol F.

: C10H20O

Mol W.

: 156.3

Cat No.

: SA22931

Ganciclovir, Impurities

D-Valganciclovir Hydrochloride

Please enquire for price & pack size

Out of Stock

CAS No.

: 1393911-57-3

Mol F.

: C₁₄H₂₃ClN₆O₅

Mol W.

: 390.82

Cat No.

: SA13715

Dacarbazine, Impurities

Dacarbazine

Please enquire for price & pack size

Out of Stock

CAS No.

: 4342-03-4

Mol F.

: C6H10N6O

Mol W.

: 182.18

Cat No.

: SA38800

Dacarbazine, Impurities

Dacarbazine EP Impurity B

Please enquire for price & pack size

Out of Stock

CAS No.

: 360-97-4

Mol F.

: C4H6N4O

Mol W.

: 126.12

Cat No.

: SA38802

Dacarbazine, Impurities

Dacarbazine EP Impurity C

Please enquire for price & pack size

Out of Stock

CAS No.

: 1314929-56-0

Mol F.

: C4H5N5O

Mol W.

: 139.12

Cat No.

: SA38803

Dacarbazine, Impurities

Dacarbazine EP Impurity D

Please enquire for price & pack size

Out of Stock

CAS No.

: 124-40-3 (Free base); 506-59-2 (HCl Salt)

Mol F.

: C2H7N

Mol W.

: 45.08

Cat No.

: SA38804

Ethisterone, Impurities

Danazol

Please enquire for price & pack size

Out of Stock

CAS No.

: 17230-88-5

Mol F.

: C₂₂H₂₇NO₂

Mol W.

: 337.46

Cat No.

: SA12907

Dapagliflozin, Impurities

Dapagliflozin

Please enquire for price & pack size

Out of Stock

CAS No.

: 461432-26-8

Mol F.

: C21H25ClO6

Mol W.

: 408.87

Cat No.

: SA15002

Dapagliflozin, Impurities

Dapagliflozin 1-Bromo-2-Chlorobenzene Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C15H14BrClO

Mol W.

: 325.63

Cat No.

: SA15076

Dapagliflozin, Impurities

Dapagliflozin 1-Bromo, 4-Chlorobenzene Impurity | CAS : 1629862-21-0

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Out of Stock

CAS No.

: 1629862-21-0

Mol F.

: C15H14BrClO

Mol W.

: 325.63

Cat No.

: SA15074

Dapagliflozin, Impurities

Dapagliflozin 1,4-Dichlorobenzene Impurity | CAS : 2069934-29-6

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Out of Stock

CAS No.

: 2069934-29-6

Mol F.

: C15H14Cl2O

Mol W.

: 281.18

Cat No.

: SA15073

Dapagliflozin, Impurities

Dapagliflozin 2-Bromo, 1-Chlorobenzene Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C15H14BrClO

Mol W.

: 325.63

Cat No.

: SA15075

Dapagliflozin, Impurities

Dapagliflozin 3-Acetate Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C23H27ClO7

Mol W.

: 450.91

Cat No.

: SA15049

Dapagliflozin, Impurities

Dapagliflozin 3-Acetyl imurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C23H27ClO7

Mol W.

: 450.91

Cat No.

: SA15048

Dapagliflozin, Impurities

Dapagliflozin 4-bromo-2-chlorobenzene Impurity | CAS : 2454263-77-3

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Out of Stock

CAS No.

: 2454263-77-3

Mol F.

: C15H14BrClO

Mol W.

: 325.63

Cat No.

: SA15077

Dapagliflozin, Impurities

Dapagliflozin Allose Isomer

Please enquire for price & pack size

Out of Stock

CAS No.

: 1888296-95-4

Mol F.

: C21H25ClO6

Mol W.

: 408.873

Cat No.

: SA15043

Dapagliflozin, Impurities

Dapagliflozin Alpha Isomer Tetraacetate Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C29H39ClO10

Mol W.

: 583.07

Cat No.

: SA15037

Dapagliflozin, Impurities

Dapagliflozin Benzylic Dimer Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 2714814-62-5

Mol F.

: C42H48Cl2O12

Mol W.

: 815.73

Cat No.

: SA15055

Dapagliflozin, Impurities

Dapagliflozin Desglucuronide Dimer

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C36H39ClO7

Mol W.

: 619.144

Cat No.

: SA15064

Dapagliflozin, Impurities

Dapagliflozin Dimer

Please enquire for price & pack size

Out of Stock

CAS No.

: 2452300-79-5

Mol F.

: C42H48Cl2O12

Mol W.

: 815.73

Cat No.

: SA15026

Dapagliflozin, Impurities

Dapagliflozin Enone Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C21H19ClO4

Mol W.

: 370.83

Cat No.

: SA15056

Dapagliflozin, Impurities

Dapagliflozin furanose Form (Rac)

Please enquire for price & pack size

Out of Stock

CAS No.

: 2271248-78-1

Mol F.

: C21H25ClO6

Mol W.

: 408.87

Cat No.

: SA15004

Dapagliflozin, Impurities

Dapagliflozin Hydroxy Ether Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C21H25ClO7

Mol W.

: 424.87

Cat No.

: SA15063

Dapagliflozin, Impurities

Dapagliflozin Methoxy Keto Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 2262460-67-1

Mol F.

: C20H21ClO7

Mol W.

: 408.83

Cat No.

: SA15072

Dapagliflozin, Impurities

Dapagliflozin mono acetyl Tetra Acetate Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C31H35ClO11

Mol W.

: 619.06

Cat No.

: SA15046

Dapagliflozin, Impurities

Dapagliflozin-20Ac Furanose Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C29H33ClO10

Mol W.

: 577.02

Cat No.

: SA15038