Home / Products / Impurities

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.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Impurities, Nilotinib

Nilotinib Iodo Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 926922-18-1

Mol F.

: C‰H‚DƒFƒINƒO

Mol W.

: 488.26

Cat No.

: SA40604

Impurities, Nilotinib

Nilotinib Pyridine N-Oxide

Please enquire for price & pack size

Out of Stock

CAS No.

: 1246817-85-5

Mol F.

: C28H22F3N7O2

Mol W.

: 545.52

Cat No.

: SA40605

Impurities, Nintedanib

Nintedanib

Please enquire for price & pack size

Out of Stock

CAS No.

: 656247-17-5

Mol F.

: C₃₁H₃₃N₅O₄

Mol W.

: 539.62

Cat No.

: SA22503

Impurities, Nintedanib

Nintedanib Dimethyl Impurity

$195.00 25 mg

Out of Stock

CAS No.

Mol F.

: C15H24N4O

Mol W.

: 276.38

Cat No.

: SA22502

Impurities, Nintedanib

Nintedanib Ethoxy Enolindole

Please enquire for price & pack size

Out of Stock

CAS No.

: 656247-19-7

Mol F.

: C19H17NO4

Mol W.

: 323.3

Cat No.

: SA22522

Impurities, Nintedanib

Nintedanib ethyl ester impurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C32H35N5O4

Mol W.

: 553.66

Cat No.

: SA22523

Impurities, Nintedanib

Nintedanib N-Acyl Ethoxy Enolindole

Please enquire for price & pack size

Out of Stock

CAS No.

: 1175365-43-1

Mol F.

: C21H19NO5

Mol W.

: 365.38

Cat No.

: SA22526

Impurities, Nintedanib

Nintedanib N-Acyl Oxindole

Please enquire for price & pack size

Out of Stock

CAS No.

: 676326-36-6

Mol F.

: C12H11NO4

Mol W.

: 233.22

Cat No.

: SA22524

Impurities, Nintedanib

Nintedanib N, N-Dimethyl Amine

Please enquire for price & pack size

Out of Stock

CAS No.

: 2454314-41-9

Mol F.

: C19H18N2O3

Mol W.

: 322.4

Cat No.

: SA22521

Impurities, Nintedanib

Nintedanib Nitroso Impurity 1

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C31H32N6O5

Mol W.

: 568.62

Cat No.

: SA22530

Impurities, Nintedanib

Nintedanib Piperazinyl N’- oxide

$245.00 25 mg

Out of Stock

CAS No.

Mol F.

: C31H35N5O5

Mol W.

: 557.64

Cat No.

: SA22528

Impurities, Niraparib

Niraparib carboxylic acid metabolite M1

Please enquire for price & pack size

Out of Stock

CAS No.

: 1476777-06-6

Mol F.

: C19H19N3O2

Mol W.

: 321.37

Cat No.

: SA50601

Impurities, Niraparib

Niraparib HCl

Please enquire for price & pack size

Out of Stock

CAS No.

: 1038915-64-8

Mol F.

: C19H21ClN4O

Mol W.

: 356.85

Cat No.

: SA50600

Impurities, Niraparib

Niraparib Impurity B

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C24H28N4O3

Mol W.

: 420.5

Cat No.

: SA50602

Impurities, Niraparib

Niraparib Impurity E

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C19H18N4O

Mol W.

: 318.37

Cat No.

: SA50603

Impurities, Nirmatrelvir

Nirmatrelvir

Please enquire for price & pack size

Out of Stock

CAS No.

: 2628280-40-8

Mol F.

: C23H32F3N5O4

Mol W.

: 499.5

Cat No.

: SA46900

Impurities, Nirmatrelvir

Nirmatrelvir Impurity A

Please enquire for price & pack size

Out of Stock

CAS No.

: 2628280-48-6

Mol F.

: C7H14ClN3O2

Mol W.

: 207.66

Cat No.

: SA46901

Impurities, Nirmatrelvir

Nirmatrelvir Impurity B

Please enquire for price & pack size

Out of Stock

CAS No.

: 2755812-81-6

Mol F.

: C23H34F3N5O5

Mol W.

: 517.6

Cat No.

: SA46902

Impurities, Nirmatrelvir

Nirmatrelvir R-isomer(CN) Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 2755812-41-8

Mol F.

: C23H32F3N5O4

Mol W.

: 499.5

Cat No.

: SA46903

Impurities, Lenalidomide

Nitrobenzoate Lenalidomide Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 1628915-10-5

Mol F.

: C9H9NO5

Mol W.

: 211.17

Cat No.

: SA34104

Impurities, Nitrofurantoin

Nitrofurantoin

Please enquire for price & pack size

Out of Stock

CAS No.

: 67-20-9

Mol F.

: C8H6N4O5

Mol W.

: 238.16

Cat No.

: SA39800

Impurities, Nitrofurantoin

Nitrofurantoin 4-Hydroxy Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 76644-41-2

Mol F.

: C8H6N4O6

Mol W.

: 254.16

Cat No.

: SA39801

Impurities, Nitrofurantoin

Nitrofurantoin 5-Methyl Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 3668-93-7

Mol F.

: C9H8N4O5

Mol W.

: 252.18

Cat No.

: SA39802

Impurities, Nitrofurantoin

Nitrofurantoin USP Related Compound A

Please enquire for price & pack size

Out of Stock

CAS No.

: 63981-22-6

Mol F.

: C8H8N4O6

Mol W.

: 256.17

Cat No.

: SA39803

Impurities, Nitrofurantoin

Nitrofurate

Please enquire for price & pack size

Out of Stock

CAS No.

: 645-12-5

Mol F.

: C…HƒNO…

Mol W.

: 157.08

Cat No.

: SA39804

Impurities, Nitrofurantoin

Nitrofurazone

Please enquire for price & pack size

Out of Stock

CAS No.

: 59-87-0

Mol F.

: C†H†N„O„

Mol W.

: 198.14

Cat No.

: SA39808

Impurities, Nitrosamine

Nitrosamine impurity for Torsemide

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C16H19N5O4S

Mol W.

: 277.12

Cat No.

: SA44612

Impurities, Nitrosamine

Nitrosamine impurity of Atorvastatin Calcium

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C33H34FN3O6

Mol W.

: 587.64

Cat No.

: SA44613

Carvedilol, Impurities

Nitroso Carvedilol

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C24H25N3O5

Mol W.

: 435.5

Cat No.

: SA31721

Impurities, Nizatidine

Nizatidine

Please enquire for price & pack size

Out of Stock

CAS No.

: 76963-41-2

Mol F.

: C12H21N5O2S2

Mol W.

: 331.46

Cat No.

: SA34400

Impurities, Nizatidine

Nizatidine EP Impurity A

Please enquire for price & pack size

Out of Stock

CAS No.

: 54252-45-8

Mol F.

: C4H9N3O2

Mol W.

: 131.13

Cat No.

: SA34401

Impurities, Nizatidine

Nizatidine EP Impurity B

Please enquire for price & pack size

Out of Stock

CAS No.

: 61832-41-5

Mol F.

: C4H8N2O2S

Mol W.

: 148.18

Cat No.

: SA34402

Impurities, Nizatidine

Nizatidine EP Impurity F

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C15H25N7O4S3

Mol W.

: 463.6

Cat No.

: SA34406

Impurities, Nizatidine

Nizatidine EP Impurity G

Please enquire for price & pack size

Out of Stock

CAS No.

: 1193434-63-7

Mol F.

: C20H33N7O2S4

Mol W.

: 531.78

Cat No.

: SA34407

Impurities, Nizatidine

Nizatidine EP Impurity I

Please enquire for price & pack size

Out of Stock

CAS No.

: 82586-81-0

Mol F.

: C11H20N4CS2

Mol W.

: 288.43

Cat No.

: SA34409

Impurities, Nizatidine

Nizatidine EP Impurity K

Please enquire for price & pack size

Out of Stock

CAS No.

: 112233-23-5

Mol F.

: C5H10ClN3OS

Mol W.

: 195.67

Cat No.

: SA34411

Impurities, Nizatidine

Nizatidine N-Desmethyl Metabolite

Please enquire for price & pack size

Out of Stock

CAS No.

: 82586-78-5

Mol F.

: C11H19N5O2S2

Mol W.

: 317.43

Cat No.

: SA34412

Impurities, Nizatidine

Nizatidine N-Oxide

Please enquire for price & pack size

Out of Stock

CAS No.

: NA

Mol F.

: C12H21N5O3S2

Mol W.

: 347.46

Cat No.

: SA34413

Dapoxetine, Impurities

NN-didesmethyl, N-Boc Dapoxetine Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 1404234-03-2

Mol F.

: C24H27NO3

Mol W.

: 377.48

Cat No.

: SA23016

Aspirin, Impurities

NO-Aspirin

Please enquire for price & pack size

Out of Stock

CAS No.

: 287118-97-2

Mol F.

: C16H13NO7

Mol W.

: 331.28

Cat No.

: SA28501

19-Norandrostenedione, Impurities

Norandrostenedione-3-ethyldienol ether

Please enquire for price & pack size

Out of Stock

CAS No.

: 2863-88-9

Mol F.

: C20H28O2

Mol W.

: C20H28O2

Cat No.

: SA15802

Impurities, Norelgestromin

Norelgestromin

Please enquire for price & pack size

Out of Stock

CAS No.

: 53016-31-2

Mol F.

: C21H29NO2

Mol W.

: 327.46

Cat No.

: SA51700

Impurities, Norethindrone

Norethindrone

Please enquire for price & pack size

Out of Stock

CAS No.

: 68-22-4

Mol F.

: C20H26O2

Mol W.

: 298.42

Cat No.

: SA13421

Impurities, Norethindrone

Norethindrone 3-Isopropoxy Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C23H32O2

Mol W.

: 340.5

Cat No.

: SA13414

Impurities, Norethindrone

Norethindrone 4,5α-Dihydro Impurity

Please enquire for price & pack size

Out of Stock

CAS No.

: 52-79-9

Mol F.

: C20H28O2

Mol W.

: 300.44

Cat No.

: SA13425

Impurities, Norethindrone

Norethindrone Acetate

Please enquire for price & pack size

Out of Stock

CAS No.

: 51-98-9

Mol F.

: C22H28O3

Mol W.

: 340.46

Cat No.

: SA13419

Impurities, Norethindrone

Norethindrone Acetate EP Impurity D

Please enquire for price & pack size

Out of Stock

CAS No.

Mol F.

: C24H30O4

Mol W.

: 382.49

Cat No.

: SA13420

Impurities, Norethindrone

Norethindrone EP Impurity D; Δ-5(10)-Norethindrone Acetate

Please enquire for price & pack size

Out of Stock

CAS No.

: 68-23-5

Mol F.

: C20H26O2

Mol W.

: 298.42

Cat No.

: SA13423

Impurities, Norethindrone

Norethindrone EP Impurity F; Norethindrone 3-Ethyl Ether

Please enquire for price & pack size

Out of Stock

CAS No.

: 96487-85-3

Mol F.

: C22H30O2

Mol W.

: 326.47

Cat No.

: SA13413

Impurities, Norethindrone

Norethindrone Sulfate Sodium Salt

Please enquire for price & pack size

Out of Stock

CAS No.

: 19778-24-6

Mol F.

: C20H25NaO5S

Mol W.

: 400.46

Cat No.

: SA13428

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.

Impurities, Nilotinib

Nilotinib Iodo Impurity

CAS No.

: 926922-18-1

Mol F.

: C‰H‚DƒFƒINƒO

Mol W.

: 488.26

Cat No.

: SA40604

Impurities, Nilotinib

Nilotinib Pyridine N-Oxide

CAS No.

: 1246817-85-5

Mol F.

: C28H22F3N7O2

Mol W.

: 545.52

Cat No.

: SA40605

Impurities, Nintedanib

Nintedanib

CAS No.

: 656247-17-5

Mol F.

: C₃₁H₃₃N₅O₄

Mol W.

: 539.62

Cat No.

: SA22503

Impurities, Nintedanib

Nintedanib Dimethyl Impurity

CAS No.

Mol F.

: C15H24N4O

Mol W.

: 276.38

Cat No.

: SA22502

Impurities, Nintedanib

Nintedanib Ethoxy Enolindole

CAS No.

: 656247-19-7

Mol F.

: C19H17NO4

Mol W.

: 323.3

Cat No.

: SA22522

Impurities, Nintedanib

Nintedanib ethyl ester impurity

CAS No.

Mol F.

: C32H35N5O4

Mol W.

: 553.66

Cat No.

: SA22523

Impurities, Nintedanib

Nintedanib N-Acyl Ethoxy Enolindole

CAS No.

: 1175365-43-1

Mol F.

: C21H19NO5

Mol W.

: 365.38

Cat No.

: SA22526

Impurities, Nintedanib

Nintedanib N-Acyl Oxindole

CAS No.

: 676326-36-6

Mol F.

: C12H11NO4

Mol W.

: 233.22

Cat No.

: SA22524

: C‰H‚DƒFƒINƒO