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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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Impurities, Nitrosamine

N-Nitroso Arotinolol

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C15H20N4O3S3

Mol W.

: 400.53

Cat No.

: SA44682

Impurities, Nitrosamine

N-Nitroso Azelnidipine

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C33H33N5O7

Mol W.

: 611.64

Cat No.

: SA44683

Impurities, Nitrosamine

N-Nitroso Blonanserin Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C21H25FN4O

Mol W.

: 368.5

Cat No.

: SA44667

Impurities, Nitrosamine

N-Nitroso Bromocriptine

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C32H39BrN6O6

Mol W.

: 683.6

Cat No.

: SA44630

Impurities, Nitrosamine

N-Nitroso Carteolol

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C16H23N3O4

Mol W.

: 321.38

Cat No.

: SA44685

Citalopram, Impurities

N-Nitroso Citalopram

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C19H18FN2O2

Mol W.

: 339.37

Cat No.

: SA17024

Impurities, Nitrosamine

N-Nitroso Clopidogrel EP Impurity F

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C15H15ClN2O3S

Mol W.

: 338.8

Cat No.

: SA44619

Impurities, Nitrosamine

N-Nitroso Cyclophosphamide

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C7H14Cl2N3O3P

Mol W.

: 290.08

Cat No.

: SA446102

Impurities, Nitrosamine

N-Nitroso dabigatran Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C34H40N8O6

Mol W.

: 656.73

Cat No.

: SA44655

Impurities, Nitrosamine

N-Nitroso Desloratadine

Please enquire for price & pack size

Out of Stock

CAS No.

: 1246819-22-6

Mol F.

: C19H18ClN3O

Mol W.

: 339.82

Cat No.

: SA44635

Impurities, Ranitidine

N-Nitroso Desmethyl Ranitidine

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C12H19N5O4S

Mol W.

: 329.38

Cat No.

: SA26519

Impurities, Ropinirole

N-Nitroso Despropyl Ropinirole

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C13H17N3O2

Mol W.

: 247.29

Cat No.

: SA41217

Diclofenac, Impurities

N-Nitroso Diclofenac

Please enquire for price & pack size

Out of Stock

CAS No.

: 66505-80-4

Mol F.

: C14H10Cl2N2O3

Mol W.

: 325.1

Cat No.

: SA12716

Diltiazem, Impurities

N-NITROSO DILTIAZEM EP IMPURITY G

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C19H21N3O4S

Mol W.

: 387.45

Cat No.

: SA19533

Duloxetine, Impurities

N-Nitroso Duloxetin EP Impurity C

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C18H18N2O2S

Mol W.

: 326.41

Cat No.

: SA36318

Duloxetine, Impurities

N-Nitroso Duloxetin EP Impurity E

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C18H18N2O2S

Mol W.

: 326.41

Cat No.

: SA36319

Duloxetine, Impurities

N-Nitroso Duloxetin EP Impurity F

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C18H18N2O2S

Mol W.

: 326.41

Cat No.

: SA36320

Impurities, Nitrosamine

N-Nitroso Ebastine

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C18H20N2O2

Mol W.

: 296.36

Cat No.

: SA44631

Eltrombopag, Impurities

N-Nitroso Eltrombopag

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C25H21N5O5

Mol W.

: 471.46

Cat No.

: SA51104

Eslicarbazepine, Impurities

N-Nitroso Eslicarbazepine

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C14H12N2O2

Mol W.

: 240.26

Cat No.

: SA28810

Ezetimibe, Impurities

N-Nitroso Ezetimibe

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C33H29F2N3O6

Mol W.

: 601.6

Cat No.

: SA14855

Impurities, Nitrosamine

N-Nitroso Frovatriptan 1

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C14H16N4O2

Mol W.

: 272.3

Cat No.

: SA44662

Impurities, Nitrosamine

N-Nitroso Furosemide Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 2708280-93-5

Mol F.

: C12H10ClN3O6S

Mol W.

: 359.74

Cat No.

: SA44681

Impurities, Nitrosamine

N-Nitroso Hydrochlorothiazide

Please enquire for price & pack size

Out of Stock

CAS No.

: 63779-86-2

Mol F.

: C7H7ClN4O5S2

Mol W.

: 326.73

Cat No.

: SA44632

Impurities, Nitrosamine

N-Nitroso Imatinib

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C29H30N8O2

Mol W.

: 522.6

Cat No.

: SA44686

Impurities, Nitrosamine

N-Nitroso Imidapril

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C20H26N4O7

Mol W.

: 434.44

Cat No.

: SA44687

Impurities, Isoproterenol

N-Nitroso Isoproterenol

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C11H16N2O4

Mol W.

: 240.3

Cat No.

: SA25906

Impurities, Nitrosamine

N-Nitroso Labetalol

Please enquire for price & pack size

Out of Stock

CAS No.

: 2820170-74-7

Mol F.

: C19H23N3O4

Mol W.

: 357.4

Cat No.

: SA44688

Impurities, Nitrosamine

N-Nitroso Meropenem

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C17H24N4O6S

Mol W.

: 412.5

Cat No.

: SA44675

Impurities, Nitrosamine

N-Nitroso Methotrexate

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C13H15N3O6

Mol W.

: 309.27

Cat No.

: SA44623

Impurities, Nitrosamine

N-Nitroso Mirtazapine EP Impurity D

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C16H16N4O

Mol W.

: 280.3

Cat No.

: SA44627

Impurities, Nitrosamine

N-Nitroso Olanzapine

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C17H19N5OS

Mol W.

: 341.4

Cat No.

: SA44617

Impurities, Nitrosamine

N-Nitroso Olopatadine N-Desmethyl Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C20H20N2O4

Mol W.

: 352.4

Cat No.

: SA44660

Impurities, Nitrosamine

N-Nitroso Olopatadine N-Desmethyl Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C20H20N2O4

Mol W.

: 352.4

Cat No.

: SA44625

Impurities, Palbociclib

N-Nitroso Palbociclib 2

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C24H28N8O3

Mol W.

: 476.53

Cat No.

: SA40424

Impurities, Nitrosamine

N-Nitroso Pramipexole

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C10H16N4OS

Mol W.

: 240.33

Cat No.

: SA44661

Impurities, Pregabalin

N-Nitroso Pregabalin

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C7H14N2O3

Mol W.

: 174.2

Cat No.

: SA24842

Impurities, Pregabalin

N-Nitroso Pregabalin Impurity 48

Please enquire for price & pack size

Out of Stock

CAS No.

: 29882-69-7

Mol F.

: C8H10N2O

Mol W.

: 150.18

Cat No.

: SA24841

Impurities, Nitrosamine

N-Nitroso Promethazine Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 94511-44-1

Mol F.

: C16H17N3OS

Mol W.

: 299.39

Cat No.

: SA44689

Impurities, Nitrosamine

N-Nitroso Propafenone

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C21H26N2O4

Mol W.

: 370.44

Cat No.

: SA44658

Impurities, Nitrosamine

N-Nitroso Ritonavir

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C8H13N3OS

Mol W.

: 199.27

Cat No.

: SA44694

Impurities, Nitrosamine

N-Nitroso Rivastigmine

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C13H19N3O3

Mol W.

: 265.31

Cat No.

: SA44690

Impurities, Ruxolitinib

N-Nitroso Ruxolitinib

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C17H17N7O

Mol W.

: 335.37

Cat No.

: SA43403

Impurities, Nitrosamine

N-Nitroso Silodosin

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C25H31F3N4O5

Mol W.

: 524.53

Cat No.

: SA44691

Impurities, Nitrosamine

N-Nitroso Tamsulosin Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 2892260-31-8

Mol F.

: C20H27N3O6S

Mol W.

: 437.5

Cat No.

: SA44672

Impurities, Nitrosamine

N-Nitroso Temocapril

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C23H27N3O6S2

Mol W.

: 505.6

Cat No.

: SA44629

Impurities, Nitrosamine

N-Nitroso Tetracaine | CAS : 3038740-94-9

Please enquire for price & pack size

Out of Stock

CAS No.

: 3038740-94-9

Mol F.

: C15H23N3O3

Mol W.

: 293.37

Cat No.

: SA446109

Impurities, Nitrosamine

N-Nitroso Trimebutine EP Impurity E

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C21H26N2O6

Mol W.

: 402.4

Cat No.

: SA44670

Impurities, Nitrosamine

N-Nitroso Varenicline

Please enquire for price & pack size

Out of Stock

CAS No.

: 2755871-02-2

Mol F.

: C13H12N4O

Mol W.

: 240.27

Cat No.

: SA44652

Impurities, Venlafaxine

N-Nitroso Venlafaxine EP Impurity D

Please enquire for price & pack size

Out of Stock

CAS No.

: 2680662-11-5

Mol F.

: C16H24N2O3

Mol W.

: 292.4

Cat No.

: SA22741