Impurity Reference Standards
API Impurities
Process impurities, isomers, degradants and related compounds for thousands of APIs, characterised for method development, validation and QC release.
2-[(4-Bromo-2-ethylbenzyl)oxy]tetrahydro-2H-pyran
- CAS
- 1589558-70-2
- Formula
- C14H19BrO2
- MW
- 299.2 g/mol
ZX-032495
2-[(4-Chlorophenyl)(4-piperidinyloxy)methyl]pyridine
- CAS
- 122368-54-1
- Formula
- C17H19ClN2O
- MW
- 302.8 g/mol
ZX-027796
2-[(5-Bromo-2-methylphenyl)methyl]-5-(4-fluorophenyl)-thiophene
- CAS
- 1030825-20-7
- Formula
- C18H14BrFS
- MW
- 361.3 g/mol
ZX-020110
2-[(5-Chloro-2,1,3-benzothiadiazol-4-yl)amino]-3,5-dihydro-4H-imidazol-4-one
- CAS
- 125292-32-2
- Formula
- C9H6ClN5OS
- MW
- 267.7 g/mol
ZX-027303
2-[(8S)-2,6,7,8-Tetrahydro-1H-cyclopenta[e][1]benzofuran-8-yl]ethanamine Hydrochloride
- CAS
- 196597-80-5
- Formula
- C13H18ClNO
- MW
- 239.74 g/mol
ZX-032094
2-[(E)-2,6-Dichlorophenylimino]-1-(1-{2-[(E)-2,6-dichlorophenylimino]-imidazolidin-1-yl}-ethyl)-imidazolidine
- CAS
- 2519452-56-1
- Formula
- C20H20Cl4N6
- MW
- 486.2 g/mol
ZX-024028
2-[(S)-(4-Chlorophenyl)(4-piperidinyloxy)methyl]pyridine (2R,3R)-2,3-Dihydroxybutanedioate
- CAS
- 210095-58-2
- Formula
- C21H25ClN2O7
- MW
- 452.9 g/mol
ZX-020829
2-[[(5-Nitro-2-thiazolyl)amino]carbonyl]phenyl 2-(acetyloxy)benzoate
- CAS
- 952686-58-7
- Formula
- C19H13N3O7S
- MW
- 427.4 g/mol
ZX-022291
2-[[3,4-Dihydro-3-methyl-2,4-dioxo-6-[(3R)-3-piperidinylamino]-1(2H)-pyrimidinyl]methyl]-benzonitrile
- CAS
- 2089611-85-6
- Formula
- C18H21N5O2
- MW
- 339.4 g/mol
ZX-019822
2-[[4-(2-Pyridinyl)phenyl]methyl]hydrazinecarboxylic Acid 1,1-Dimethylethyl Ester
- CAS
- 198904-85-7
- Formula
- C17H21N3O2
- MW
- 299.37 g/mol
ZX-023384
2-[2-(2,2,2-Trifluoroethoxy)phenoxy]ethyl methanesulfonate
- CAS
- 160969-03-9
- Formula
- C11H13F3O5S
- MW
- 314.28 g/mol
ZX-026934
2-[2-(Dipropylamino)ethyl]-6-nitrophenyl Acetic Acid Hydrochloride
- CAS
- 91374-25-3
- Formula
- C16H25ClN2O4
- MW
- 344.8 g/mol
ZX-032283
2-[2-[[4-[(5S)-5-[[[(5-Chloro-2-thienyl)carbonyl]amino]methyl]-2-oxo-3-oxazolidinyl]phenyl]amino]ethoxy]-acetic Acid Hydrochloride
- CAS
- 931117-61-2
- Formula
- C19H21Cl2N3O6S
- MW
- 490.4 g/mol
ZX-026754
2-[2-[4-(2-Azidotetrahydro-3-methyl-5-oxo-2-furanyl)phenyl]hydrazinylidene]propanedinitrile
- CAS
- 252638-01-0
- Formula
- C14H11N7O2
- MW
- 309.28 g/mol
ZX-030265
2-[3,5-Dichloro-4-[[6-chloro-5-(1-methylethyl)-3-pyridazinyl]oxy]phenyl]-2,3,4,5-tetrahydro-3,5-dioxo-1,2,4-triazine-6-carbonitrile
- CAS
- 2403721-20-8
- Formula
- C17H11Cl3N6O3
- MW
- 453.7 g/mol
ZX-020383
Have a list of compounds to price?
Paste up to 200 CAS numbers into Bulk CAS lookup, or send one enquiry for everything in your quote list. We reply with price, lead time and documents.