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Impurities

SynThink is a trusted producer and supplier of Pharmaceutical Reference Standards, including Impurity Standards. These materials are essential for pharmaceutical companies conducting research into the quality, stability, and biological safety of drug products. We maintain a robust inventory of API impurities, ready to support your development and regulatory needs.

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Canagliflozin, Impurities

Canagliflozin Chloro Impurity; 2′-Deshydroxymethyl-2′-Chloromethyl-canagliflozin

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CAS No.

Mol F.

: C24H24ClFO4S

Mol W.

: 463

Cat No.

: SA14928

Canagliflozin, Impurities

Canagliflozin Dimer

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CAS No.

Mol F.

: C48H48F2O10S2

Mol W.

: 887.02

Cat No.

: SA14907

Canagliflozin, Impurities

Canagliflozin Dimer Impurity

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CAS No.

Mol F.

: C48H48F2O10S2

Mol W.

: 887.02

Cat No.

: SA14931

Canagliflozin, Impurities

Canagliflozin Furanose Impurity

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CAS No.

Mol F.

: C24H25FO5S

Mol W.

: 444.52

Cat No.

: SA14929

Canagliflozin, Impurities

Canagliflozin Hydroperoxide

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CAS No.

: 2247196-28-5

Mol F.

: C24H25FO7S

Mol W.

: 476.51

Cat No.

: SA14918

Candesartan, Impurities

Candesartan

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CAS No.

: 145040-37-5

Mol F.

: C33H34N6O6

Mol W.

: 610.66

Cat No.

: SA39100

Candesartan, Impurities

Candesartan EP Impurity A

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CAS No.

: 139481-58-6

Mol F.

: C26H24N6O3

Mol W.

: 468.51

Cat No.

: SA39101

Candesartan, Impurities

Candesartan EP Impurity B

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CAS No.

: 869631-11-8

Mol F.

: C31H30N6O6

Mol W.

: 582.61

Cat No.

: SA39102

Candesartan, Impurities

Candesartan EP Impurity C

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CAS No.

: 1185255-99-5

Mol F.

: C33H34N6O6

Mol W.

: 610.66

Cat No.

: SA39103

Candesartan, Impurities

Candesartan EP Impurity D

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CAS No.

: 1185256-03-4

Mol F.

: C33H34N6O6

Mol W.

: 610.66

Cat No.

: SA39104

Candesartan, Impurities

Candesartan EP Impurity E

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CAS No.

: 914613-35-7

Mol F.

: C35H38N6O6

Mol W.

: 638.71

Cat No.

: SA39105

Candesartan, Impurities

Candesartan EP Impurity F

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CAS No.

: 914613-36-8

Mol F.

: C35H38N6O6

Mol W.

: 638.71

Cat No.

: SA39106

Candesartan, Impurities

Candesartan EP Impurity G

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CAS No.

: 139481-59-7

Mol F.

: C24H20N6O3

Mol W.

: 440.45

Cat No.

: SA39107

Candesartan, Impurities

Candesartan EP Impurity H

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CAS No.

: 170791-09-0

Mol F.

: C52H48N6O6

Mol W.

: 852.97

Cat No.

: SA39108

Candesartan, Impurities

Candesartan EP Impurity I

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CAS No.

: 139481-69-9

Mol F.

: C25H22N6O3

Mol W.

: 454.48

Cat No.

: SA39109

Cangrelor, Impurities

Cangrelor

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CAS No.

: 163706-06-7

Mol F.

: C17H25Cl2F3N5O12P3S2

Mol W.

: 776.36

Cat No.

: SA29400

Cangrelor, Impurities

Cangrelor Tetrasodium Salt

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CAS No.

: 163706-36-3

Mol F.

: C₁₇H₂₁Cl₂F₃N₅Na₄O₁₂P₃S₂

Mol W.

: 864.29

Cat No.

: SA29407

Cangrelor, Impurities

Cangrelor Triacetate Impurity

$255.00 25 mg

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CAS No.

: 1830294-26-2

Mol F.

: C₂₂H₂₈F₃N₅O₇S₂

Mol W.

: 595.61

Cat No.

: SA29403

Capecitabine, Impurities

Capecitabine

$80.00 25 mg

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CAS No.

: 154361-50-9

Mol F.

: C15H22FN3O6

Mol W.

: 359.35

Cat No.

: SA37800

Capecitabine, Impurities

Capecitabine alpha-Isomer

$650.00 25 mg

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CAS No.

Mol F.

: C15H22FN3O6

Mol W.

: 359.35

Cat No.

: SA37812

Capecitabine, Impurities

Capecitabine EP Impurity A

$100.00 25 mg

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CAS No.

: 66335-38-4

Mol F.

: C9H12FN3O4

Mol W.

: 245.21

Cat No.

: SA37801

Capecitabine, Impurities

Capecitabine EP Impurity B

$80.00 25 mg

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CAS No.

: 3094-09-5

Mol F.

: C9H11FN2O5

Mol W.

: 246.19

Cat No.

: SA37802

Capecitabine, Impurities

Capecitabine EP Impurity F

$150.00 25 mg

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CAS No.

: 921769-65-5

Mol F.

: C16H20FN3O7

Mol W.

: 385.34

Cat No.

: SA37806

Capecitabine, Impurities

Capecitabine Methoxy Analog

$350.00 25 mg

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CAS No.

: 296248-49-2

Mol F.

: C11H14FN3O6

Mol W.

: 303.24

Cat No.

: SA37810

Carbamazepine, Impurities

Carbamazepine 10,11-Epoxide

$95.00 25 mg

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CAS No.

: 36507-30-9

Mol F.

: C15H12N2O2

Mol W.

: 252.27

Cat No.

: SA20315

Carbamazepine, Impurities

Carbamazepine EP Impurity B

$95.00 25 mg

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CAS No.

: 611-64-3

Mol F.

: C14H11N

Mol W.

: 193.24

Cat No.

: SA20308

Carbamazepine, Impurities

Carbamazepine EP Impurity F

$75.00 25 mg

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CAS No.

: 33948-22-0

Mol F.

: C15H10ClNO

Mol W.

: 255.7

Cat No.

: SA20312

Carbamazepine, Impurities

Carbamazepine N-Bromocarbonyl Impurity

$395.00 25 mg

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CAS No.

: 40421-05-4

Mol F.

: C15H10BrNO

Mol W.

: 300.15

Cat No.

: SA20305

Carisoprodol, Impurities

Carbamyl Benzyl Ester

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CAS No.

: 621-84-1

Mol F.

: C₈H₉NO₂

Mol W.

: 151.16

Cat No.

: SA25308

Carbidopa, Impurities

Carbidopa

$75.00 25 mg

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CAS No.

: 38821-49-7

Mol F.

: C10H16N2O5

Mol W.

: 244.24

Cat No.

: SA31800

Carbidopa, Impurities

Carbidopa EP Impurity J

$495.00 25 mg

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CAS No.

: 43197-33-7

Mol F.

: C10H13BrN2O4

Mol W.

: 305.13

Cat No.

: SA31810

Abacavir, Impurities

Carbovir Monophosphate

$495.00 25 mg

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CAS No.

: 144490-73-3

Mol F.

: C11H14N5O5P

Mol W.

: 327.23

Cat No.

: SA18116

Carfilzomib, Impurities

Carfilzomib (2R,4R)-2-Hydroxy O-Acettyl Impurity

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CAS No.

Mol F.

: C42H61N5O9

Mol W.

: 779.96

Cat No.

: SA45005

Carfilzomib, Impurities

Carfilzomib (2R,4R)-Diol

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CAS No.

Mol F.

: C40H59N5O8

Mol W.

: 737.93

Cat No.

: SA45004

Carfilzomib, Impurities

Carfilzomib (2R,4R)-Diol (7R)-Isomer

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CAS No.

Mol F.

: C40H59N5O8

Mol W.

: 737.93

Cat No.

: SA45006

Carfilzomib, Impurities

Carfilzomib (2R,4S)-2-Hydroxy O-Acetyl Impurity

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CAS No.

: 1541171-69-0

Mol F.

: C42H61N5O9

Mol W.

: 779.96

Cat No.

: SA45007

Carfilzomib, Impurities

Carfilzomib (2R,4S)-Diol

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CAS No.

: 1541172-75-1

Mol F.

: C40H59N5O8

Mol W.

: 737.93

Cat No.

: SA45003

Carfilzomib, Impurities

Carfilzomib (2S,4R)-2-Hydroxy O-Acetyl Impurity

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CAS No.

Mol F.

: C42H61N5O9

Mol W.

: 779.96

Cat No.

: SA45010

Carfilzomib, Impurities

Carfilzomib (2S,4R)-Diol (7R)-Isomer

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CAS No.

Mol F.

: C40H59N5O8

Mol W.

: 737.93

Cat No.

: SA45011

Carfilzomib, Impurities

Carfilzomib (2S,4S)-2-Hydroxy O-Acetyl Impurity

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CAS No.

: NA

Mol F.

: C42H61N5O9

Mol W.

: 779.96

Cat No.

: SA45012

Carfilzomib, Impurities

Carfilzomib Dimer Impurity-1

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CAS No.

Mol F.

: C65H88N8O10

Mol W.

: 1140.6

Cat No.

: SA45000

Carfilzomib, Impurities

Carfilzomib Dimer Impurity-2

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CAS No.

Mol F.

: C55H77N7O9

Mol W.

: 980.3

Cat No.

: SA45001

Carfilzomib, Impurities

Carfilzomib Enantiomer

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CAS No.

Mol F.

: C40H57N5O7

Mol W.

: 719.9

Cat No.

: SA45002

Carfilzomib, Impurities

Carfilzomib Methoxide

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CAS No.

Mol F.

: C32H44N4O6

Mol W.

: 580.71

Cat No.

: SA45009

Cariprazine, Impurities

Cariprazine

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CAS No.

: 839712-12-8

Mol F.

: C21H32Cl2N4O

Mol W.

: 427.41

Cat No.

: SA39700

Cariprazine, Impurities

Cariprazine Amide Impurity | CAS : 2171074-48-7

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CAS No.

: 2171074-48-7

Mol F.

: C21H30Cl2N4O2

Mol W.

: 441.4

Cat No.

: SA39716

Cariprazine, Impurities

Cariprazine Amine Analog

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CAS No.

: 791778-53-5

Mol F.

: C18H27Cl2N3

Mol W.

: 356.33

Cat No.

: SA39705

Cariprazine, Impurities

Cariprazine Isopropyl Carbamate

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CAS No.

: 1231947-90-2

Mol F.

: C22H33Cl2N3O2

Mol W.

: 442.42

Cat No.

: SA39706

Cariprazine, Impurities

Cariprazine Urea Dimer

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CAS No.

: NA

Mol F.

: C37H52Cl4N6O

Mol W.

: 738.66

Cat No.

: SA39704

Carisoprodol, Impurities

Carisoprodol EP Impurity A

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CAS No.

: 25462-17-3

Mol F.

: C₁₁H₂₃NO₃

Mol W.

: 217.31

Cat No.

: SA25302