Impurity Reference Standards
API Impurities
Process impurities, isomers, degradants and related compounds for thousands of APIs, characterised for method development, validation and QC release.
(3R,5S)-5-((R)-8-Fluoro-4-isopropyl-2-(N-methylmethylsulfonamido)-5,6-dihydrobenzo[h]quinazolin-6-yl)-3,5-dihydroxypentanoic acid
- CAS
- 854898-48-9
- Formula
- C22H28FN3O6S
- MW
- 481.5 g/mol
ZX-026823
(3R,5S)-5-(6-Cyclopropyl-10-fluorobenzo[k]phenanthridin-8-yl)-3,5-dihydroxypentanoic acid
- CAS
- 1187966-93-3
- Formula
- C25H22FNO4
- MW
- 419.4 g/mol
ZX-026447
(3R,5S)-6-Chloro-3,5-dihydroxyhexanoic Acid tert-Butyl Ester
- CAS
- 154026-93-4
- Formula
- C10H19ClO4
- MW
- 238.71 g/mol
ZX-022699
(3R,6R)-3,6-Bis[(aminooxy)methyl]-2,5-piperazinedione
- CAS
- 16337-02-3
- Formula
- C6H12N4O4
- MW
- 204.18 g/mol
ZX-021310
(3R)-3-[4-[(5-Bromo-2-chlorophenyl)methyl]phenoxy]tetrahydrofuran
- CAS
- 915095-90-8
- Formula
- C17H16BrClO2
- MW
- 367.7 g/mol
ZX-021539
(3R)-4-(4-Fluorobenzoyl)-3-methyl-2-piperazinone
- CAS
- 1892599-91-5
- Formula
- C12H13FN2O2
- MW
- 236.24 g/mol
ZX-024737
(3S,11AR)-6-Methoxy-3-methyl-5,7-dioxo-2,3,5,7,11,11a-hexahydrooxazolo[3,2-a]pyrido[1,2-d]pyrazine-8-carboxylic Acid
- CAS
- 1335210-24-6
- Formula
- C13H14N2O6
- MW
- 294.26 g/mol
ZX-020093
(3S,11AR)-N-(2,4-Difluorobenzyl)-6-methoxy-3-methyl-5,7-dioxo-2,3,5,7,11,11a-hexahydrooxazolo[3,2-a]pyrido[1,2-d]pyrazine-8-carboxamide
- CAS
- 1335210-25-7
- Formula
- C20H19F2N3O5
- MW
- 419.4 g/mol
ZX-020092
(3S,3AS,5aS,6R,9aS,9bS)-6-(2-Carboxyethyl)-3a,6-dimethyl-7-oxododecahydro-1H-cyclopenta[a]naphthalene-3-carboxylic Acid
- CAS
- 76763-14-9
- Formula
- C19H28O5
- MW
- 336.4 g/mol
ZX-029129
(3S,4R)-1-Benzyl-N,4-dimethylpiperidin-3-amine dihydrochloride
- CAS
- 1821769-41-8
- Formula
- C14H24Cl2N2
- MW
- 291.3 g/mol
ZX-027313
(3S,4R)-3-Ethyl-4-(3-tosyl-3H-imidazo[1,2-a]pyrrolo[2,3-e]pyrazin-8-yl)-N-(2,2,2-trifluoroethyl)pyrrolidine-1-carboxamide
- CAS
- 2411540-30-0
- Formula
- C24H25F3N6O3S
- MW
- 534.6 g/mol
ZX-022966
(3S,4R)-4-(3-Amino-2-oxopropyl)-3-ethyldihydrofuran-2(3H)-one
- CAS
- 157810-06-5
- Formula
- C9H15NO3
- MW
- 185.22 g/mol
ZX-026398
(3S,4R)-tert-Butyl 4-amino-3-fluoropiperidine-1-carboxylate
- CAS
- 907544-20-1
- Formula
- C10H19FN2O2
- MW
- 218.27 g/mol
ZX-045817
(3S,4S,5R)-3-(3,4-Difluoro-2-methoxyphenyl)-4,5-dimethyl-5-(trifluoromethyl)dihydrofuran-2(3H)-one
- CAS
- 2875066-38-7
- Formula
- C14H13F5O3
- MW
- 324.24 g/mol
ZX-042534
(3S,5S,6R)-3-Amino-6-methyl-1-(2,2,2-trifluoroethyl)-5-(2,3,6-trifluorophenyl)piperidin-2-one
- CAS
- 1375794-72-1
- Formula
- C14H14F6N2O
- MW
- 340.26 g/mol
ZX-023393
(3S,5S)-Atorvastatin Acetonide tert-Butyl Ester
- CAS
- 472967-95-6
- Formula
- C40H47FN2O5
- MW
- 654.8 g/mol
ZX-020716
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