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-Cyclopropyl-4-(4-fluorophenyl)-quinolyl-3-methylbromide
- CAS
- 154057-56-4
- Formula
- C19H15BrFN
- MW
- 356.2 g/mol
ZX-031896
2-Deoxy-2,2-difluoro-4,5-O-isopropylidene-D-erythro-pentonic Acid Ethyl Ester
- CAS
- 95058-92-7
- Formula
- C10H16F2O5
- MW
- 254.23 g/mol
ZX-029714
2-Deoxy-2,2-difluoro-D-erythro-ribofuranose-3,5-dibenzoate 1-Methanesulfonate
- CAS
- 122111-11-9
- Formula
- C20H18F2O8S
- MW
- 456.4 g/mol
ZX-033542
2-Deoxy-D-erythro-pentopyranosyl Chloride Bis(4-methylbenzoate) (Mixture of α/β isomers)
- CAS
- 20535-28-8
- Formula
- C21H21ClO5
- MW
- 388.8 g/mol
ZX-028890
2-Ethoxy-1-methoxy-4-(2-methylsulfonylethenyl)benzene
- CAS
- 1831833-38-5
- Formula
- C12H16O4S
- MW
- 256.32 g/mol
ZX-023335
2-Ethoxy-4-(2-((4aS,6S)-6-isobutyl-2,3,4,4a-tetrahydro-1H-pyrido[1,2-a]quinazolin-5(6H)-yl)-2-oxoethyl)benzoic Acid
- CAS
- 2519482-34-7
- Formula
- C27H34N2O4
- MW
- 450.6 g/mol
ZX-032157
2-Ethylbutyl ((R)-(4-nitrophenoxy)(phenoxy)phosphoryl)-D-alaninate
- CAS
- 2093124-22-0
- Formula
- C21H27N2O7P
- MW
- 450.4 g/mol
ZX-036633
2-Ethylbutyl ((S)-(((2R,3S,4R,5R)-5-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-5-cyano-3,4-dihydroxytetrahydrofuran-2-yl)methoxy)(phenoxy)phosphoryl)-D-alaninate
- CAS
- 2093124-26-4
- Formula
- C27H35N6O8P
- MW
- 602.6 g/mol
ZX-032143
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.