Impurity Reference Standards
API Impurities
Process impurities, isomers, degradants and related compounds for thousands of APIs, characterised for method development, validation and QC release.
(3S,5S)-tert-Butyl 6-chloro-3,5-dihydroxyhexanoate
- CAS
- 325471-28-1
- Formula
- C10H19ClO4
- MW
- 238.71 g/mol
ZX-022710
(3S,8R,9S,10S,13S,14S)-10,13-Dimethyl-17-(pyridin-3-yl)-2,3,4,5,6,7,8,9,10,11,12,13,14,15-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl Acetate
- CAS
- 2141996-19-0
- Formula
- C26H35NO2
- MW
- 393.6 g/mol
ZX-020438
(3S)-10-Fluoro-2,3-dihydro-3-methyl-7-oxo-7H-pyrido[1,2,3-de]-1,4-benzoxazine-6-carboxylic Acid
- CAS
- 117620-84-5
- Formula
- C13H10FNO4
- MW
- 263.22 g/mol
ZX-025377
(3S)-3-(2-Amino-2-oxoethyl)-5-methylhexanoic Acid
- CAS
- 181289-34-9
- Formula
- C9H17NO3
- MW
- 187.24 g/mol
ZX-031978
(3S)-3-(tert-Butoxycarbonyl)amino-1-chloro-4-phenyl-2-butanone
- CAS
- 102123-74-0
- Formula
- C15H20ClNO3
- MW
- 297.78 g/mol
ZX-034180
(3S)-3-[4-[(2-Chloro-5-iodophenyl)methyl]phenoxy]tetrahydrofuran
- CAS
- 915095-94-2
- Formula
- C17H16ClIO2
- MW
- 414.7 g/mol
ZX-021535
(3S)-3-Amino-1-(tert-butylcarboxymethyl)-2,3,4,5-tetrahydro-1H-benzazepin-2-one
- CAS
- 115406-14-9
- Formula
- C16H22N2O3
- MW
- 290.36 g/mol
ZX-023518
(3S)-4-Chloro-3-[(trimethylsilyl)oxy]butanenitrile
- CAS
- 727382-14-1
- Formula
- C7H14ClNOSi
- MW
- 191.73 g/mol
ZX-022371
(3α,5β,7β)-3,7-Dihydroxy-24-norcholane-23-nitrile
- CAS
- 118316-12-4
- Formula
- C23H37NO2
- MW
- 359.5 g/mol
ZX-042648
(3β)-16-[(3β)-3-(Acetyloxy)androsta-5,16-dien-17-yl]-17-(3-pyridinyl)-androsta-5,16-dien-3-ol 3-Acetate
- CAS
- 186826-68-6
- Formula
- C47H61NO4
- MW
- 704 g/mol
ZX-020435
(3β)-Androsta-5,16-diene-3,17-diol 3-Acetate 17-(Trifluoromethanesulfonate)
- CAS
- 115375-60-5
- Formula
- C22H29F3O5S
- MW
- 462.5 g/mol
ZX-023120
(4-(1-(3-(Cyanomethyl)-1-(ethylsulfonyl)azetidin-3-yl)-1H-pyrazol-4-yl)-7H-pyrrolo[2,3-d]pyrimidin-7-yl)methyl Pivalate
- CAS
- 1187595-90-9
- Formula
- C22H27N7O4S
- MW
- 485.6 g/mol
ZX-023493
(4-(2-(2,4-Diaminopteridin-7-yl)ethyl)benzoyl)glutamic Acid
- CAS
- 2058054-07-0
- Formula
- C20H21N7O5
- MW
- 439.4 g/mol
ZX-031931
(4-(4-Methyl-6-oxo-1,4,5,6-tetrahydropyridazin-3-yl)phenyl)carbonohydrazonoyl dicyanide
- CAS
- 131741-08-7
- Formula
- C14H12N6O
- MW
- 280.28 g/mol
ZX-025384
(4-(Pyridin-2-ylcarbamoyl)phenyl)boronic acid
- CAS
- 850568-25-1
- Formula
- C12H11BN2O3
- MW
- 242.04 g/mol
ZX-032952
(4-Butyryl-2,3-dichlorophenoxy)-acetic Acid Ethyl Ester
- CAS
- 2977-51-7
- Formula
- C14H16Cl2O4
- MW
- 319.2 g/mol
ZX-029356
(4-Chloro-3-(4-ethoxybenzyl)phenyl)trimethylsilane
- CAS
- 2133407-73-3
- Formula
- C18H23ClOSi
- MW
- 318.9 g/mol
ZX-024134
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