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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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Abacavir, Impurities

Abacavir N-Oxide Impurity | CAS : 1443421-70-2

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Out of Stock

CAS No.

: 1443421-70-2

Mol F.

: C14H18N6O2

Mol W.

: 302.33

Cat No.

: SA18128

Abacavir, Impurities

Abacavir Nitroso Impurity

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Out of Stock

CAS No.

Mol F.

: C14H17N7O2

Mol W.

: 315.33

Cat No.

: SA18127

Acalabrutinib, Impurities

Acalabrutinib

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Out of Stock

CAS No.

: 1420477-60-6

Mol F.

: C26H23N7O2

Mol W.

: 465.51

Cat No.

: SA46300

Acalabrutinib, Impurities

Acalabrutinib M1 Metabolite

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Out of Stock

CAS No.

: NA

Mol F.

: C21H19N5O3

Mol W.

: 389.41

Cat No.

: SA46306

Acalabrutinib, Impurities

Acalabrutinib M10 Metabolite

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Out of Stock

CAS No.

: NA

Mol F.

: C29H30N8O4S

Mol W.

: 586.66

Cat No.

: SA46305

Acalabrutinib, Impurities

Acalabrutinib M23 Metabolite

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Out of Stock

CAS No.

: NA

Mol F.

: C26H25N7O3

Mol W.

: 483.52

Cat No.

: SA46302

Acalabrutinib, Impurities

Acalabrutinib M5 Metabolite

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Out of Stock

CAS No.

: NA

Mol F.

: C36H40N10O8S

Mol W.

: 772.83

Cat No.

: SA46304

Acalabrutinib, Impurities

Acalabrutinib M7 Metabolite

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Out of Stock

CAS No.

: NA

Mol F.

: C31H33N9O5S

Mol W.

: 643.72

Cat No.

: SA46303

Acalabrutinib, Impurities

Acalabrutinib open chain impurity; Acalabrutinib Metabolite 27

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Out of Stock

CAS No.

: 2230757-47-6

Mol F.

: C26H23N7O3

Mol W.

: 481.51

Cat No.

: SA46301

Aceclofenac, Impurities

Aceclofenac EP Impurity A

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Out of Stock

CAS No.

: 15307-86-5;15307-79-6(sodiumsalt);15307-81-0(potassiumsalt)

Mol F.

: C14H11Cl2NO2

Mol W.

: 296.15

Cat No.

: SA12803

Aceclofenac, Impurities

Aceclofenac EP Impurity B

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Out of Stock

CAS No.

: 15307-78-5

Mol F.

: C15H13Cl2NO2

Mol W.

: 310.18

Cat No.

: SA12802

Aceclofenac, Impurities

Aceclofenac EP Impurity C

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Out of Stock

CAS No.

: 15307-77-4

Mol F.

: C16H15Cl2NO2

Mol W.

: 324.2

Cat No.

: SA12801

Aceclofenac, Impurities

Aceclofenac EP Impurity D

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Out of Stock

CAS No.

: 139272-66-5

Mol F.

: C17H15Cl2NO4

Mol W.

: 368.21

Cat No.

: SA12804

Aceclofenac, Impurities

Aceclofenac EP Impurity E

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Out of Stock

CAS No.

: 139272-67-6

Mol F.

: C18H17Cl2NO4

Mol W.

: 382.24

Cat No.

: SA12805

Aceclofenac, Impurities

Aceclofenac EP Impurity F

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Out of Stock

CAS No.

: 100499-89-6

Mol F.

: C23H19Cl2NO4

Mol W.

: 444.31

Cat No.

: SA12806

Aceclofenac, Impurities

Aceclofenac EP Impurity G

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Out of Stock

CAS No.

: 1215709-75-3

Mol F.

: C18H15Cl2NO6

Mol W.

: 412.22

Cat No.

: SA12807

Aceclofenac, Impurities

Aceclofenac EP Impurity H

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Out of Stock

CAS No.

: 1216495-92-9

Mol F.

: C20H17Cl2NO8

Mol W.

: 470.26

Cat No.

: SA12808

Aceclofenac, Impurities

Aceclofenac EP Impurity I

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Out of Stock

CAS No.

: 15362-40-0

Mol F.

: C14H9Cl2NO

Mol W.

: 278.13

Cat No.

: SA12809

Acetaminophen, Impurities

Acetaminophen EP Impurity A

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Out of Stock

CAS No.

: 614-80-2

Mol F.

: C8H9NO2

Mol W.

: 151.16

Cat No.

: SA37001

Acetaminophen, Impurities

Acetaminophen EP Impurity B

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Out of Stock

CAS No.

: 1693-37-4

Mol F.

: C9H11NO2

Mol W.

: 165.19

Cat No.

: SA37002

Acetaminophen, Impurities

Acetaminophen EP Impurity C

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Out of Stock

CAS No.

: 3964-54-3

Mol F.

: C8H8ClNO2

Mol W.

: 185.61

Cat No.

: SA37003

Acetaminophen, Impurities

Acetaminophen EP Impurity D

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Out of Stock

CAS No.

: 103-84-4

Mol F.

: C8H9NO

Mol W.

: 135.16

Cat No.

: SA37004

Acetaminophen, Impurities

Acetaminophen EP Impurity E

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Out of Stock

CAS No.

: 99-93-4

Mol F.

: C8H8O2

Mol W.

: 136.15

Cat No.

: SA37005

Acetaminophen, Impurities

Acetaminophen EP Impurity F

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Out of Stock

CAS No.

: 100-02-7

Mol F.

: C6H5NO3

Mol W.

: 139.11

Cat No.

: SA37006

Acetaminophen, Impurities

Acetaminophen EP Impurity G

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Out of Stock

CAS No.

: 34523-34-7

Mol F.

: C8H9NO2

Mol W.

: 151.16

Cat No.

: SA37007

Acetaminophen, Impurities

Acetaminophen EP Impurity H

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Out of Stock

CAS No.

: 2623-33-8

Mol F.

: C10H11NO3

Mol W.

: 193.2

Cat No.

: SA37008

Acetaminophen, Impurities

Acetaminophen EP Impurity I

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Out of Stock

CAS No.

: 118-93-4

Mol F.

: C8H8O2

Mol W.

: 136.15

Cat No.

: SA37009

Acetaminophen, Impurities

Acetaminophen EP Impurity J

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Out of Stock

CAS No.

: 539-03-7

Mol F.

: C8H8ClNO

Mol W.

: 169.61

Cat No.

: SA37010

Acetaminophen, Impurities

Acetaminophen EP Impurity K

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Out of Stock

CAS No.

: 51-78-5;123-30-8

Mol F.

: C6H7NO

Mol W.

: 109.13

Cat No.

: SA37011

Acetaminophen, Impurities

Acetaminophen EP Impurity L

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Out of Stock

CAS No.

: NA

Mol F.

: C16H16N2O4

Mol W.

: 300.31

Cat No.

: SA37012

Aciclovir, Impurities

Acetyl 2-[(2-Formamide-1,6-dihydro-6-chloro-9H-purin-9yl)methoxy]ethyl Ester

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Out of Stock

CAS No.

: 1346598-89-7

Mol F.

: C11H12ClN5O4

Mol W.

: 316.7

Cat No.

: SA21428

Aciclovir, Impurities

Aciclovir

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Out of Stock

CAS No.

: 59277-89-3

Mol F.

: C8H11N5O3

Mol W.

: 225.2

Cat No.

: SA21401

Aciclovir, Impurities

Aciclovir Acid

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Out of Stock

CAS No.

: 80685-22-9

Mol F.

: C8H9N5O4

Mol W.

: 239.19

Cat No.

: SA21430

Aciclovir, Impurities

Aciclovir EP Impurity I

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Out of Stock

CAS No.

: 1797832-75-7

Mol F.

: C14H16N10O4

Mol W.

: 388.34

Cat No.

: SA21415

Aciclovir, Impurities

Aciclovir EP Impurity K

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Out of Stock

CAS No.

: 1797131-64-6

Mol F.

: C17H22N10O6

Mol W.

: 462.42

Cat No.

: SA21418

Aciclovir, Impurities

Aciclovir EP Impurity Q

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Out of Stock

CAS No.

: NA

Mol F.

: C9H13N5O4

Mol W.

: 255.24

Cat No.

: SA21414

Aciclovir, Impurities

Aciclovir EP Impurity R

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Out of Stock

CAS No.

: NA

Mol F.

: C17H22N10O6

Mol W.

: 462.42

Cat No.

: SA21419

Aciclovir, Impurities

Aciclovir Monophosphate

$295.00 25 mg

Out of Stock

CAS No.

: 66341-16-0

Mol F.

: C8H12N5O6P

Mol W.

: 305.18

Cat No.

: SA21421

Aciclovir, Impurities

Aciclovir N-Methyl-L-valinate Hydrochloride

$250.00 25 mg

Out of Stock

CAS No.

: 1346617-39-7

Mol F.

: C14H23ClN6O4

Mol W.

: 374.82

Cat No.

: SA21420

Impurities, Oxcarbazepine

Acridine

$95.00 25 mg

Out of Stock

CAS No.

: 260-94-6

Mol F.

: C13H9N

Mol W.

: 179.22

Cat No.

: SA12508

Impurities, Oxcarbazepine

Acridine Carboxylic Acid Hydrate

$95.00 25 mg

Out of Stock

CAS No.

: 332927-03-4

Mol F.

: C15H9NO2

Mol W.

: 233.23

Cat No.

: SA12502

Albendazole, Impurities

Albendazole

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Out of Stock

CAS No.

: 54965-21-8

Mol F.

: C12H15N3O2S

Mol W.

: 265.33

Cat No.

: SA31100

Albendazole, Impurities

Albendazole Chlorosulfonyl Analog

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Out of Stock

CAS No.

: 79213-74-4

Mol F.

: C9H8ClN3O4S

Mol W.

: 289.7

Cat No.

: SA31109

Albendazole, Impurities

Albendazole EP Impurity A

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Out of Stock

CAS No.

: 80983-36-4

Mol F.

: C10H13N3S

Mol W.

: 207.3

Cat No.

: SA31101

Albendazole, Impurities

Albendazole EP Impurity B

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Out of Stock

CAS No.

: 54029-12-8

Mol F.

: C12H15N3O3S

Mol W.

: 281.33

Cat No.

: SA31102

Albendazole, Impurities

Albendazole EP Impurity C

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Out of Stock

CAS No.

: 75184-71-3

Mol F.

: C12H15N3O4S

Mol W.

: 297.33

Cat No.

: SA31103

Albendazole, Impurities

Albendazole EP Impurity D

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Out of Stock

CAS No.

: 80983-34-2

Mol F.

: C10H13N3O2S

Mol W.

: 239.29

Cat No.

: SA31104

Albendazole, Impurities

Albendazole EP Impurity E

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Out of Stock

CAS No.

: 10605-21-7

Mol F.

: C9H9N302

Mol W.

: 191.19

Cat No.

: SA31105

Albendazole, Impurities

Albendazole EP Impurity F

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Out of Stock

CAS No.

: 80983-45-5

Mol F.

: C10H11N302S

Mol W.

: 237.28

Cat No.

: SA31106

Albendazole, Impurities

Albendazole Impurity G

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Out of Stock

CAS No.

: 139751-05-6

Mol F.

: C13H17N3O2S

Mol W.

: 279.36

Cat No.

: SA31107