Catalog division
Impurity Reference Standards
Pharmacopoeial impurities, nitrosamines, metabolites, labelled internal standards and API working standards, each backed by analytical data for method development and QC.
Formoterol Fumarate Dihydrate EP Impurity I (R,S-isomer) ((R,S)-Formoterol)
- CAS
- 67346-51-4
- Formula
- C19H24N2O4
- MW
- 344.4 g/mol
ZX-028066
Formoterol Fumarate Dihydrate EP Impurity I (S,R-isomer) ((S,R)-Formoterol)
- CAS
- 67346-50-3
- Formula
- C19H24N2O4
- MW
- 344.4 g/mol
ZX-028065
Fosaprepitant Dimeglumine Desfluoro Impurity
- CAS
- 2975348-16-2
- Formula
- C37H57F6N6O16P
- MW
- 986.8 g/mol
ZX-004778
Fosaprepitant Dimeglumine Dibenzylester Impurity
- CAS
- 265121-01-5
- Formula
- C37H34F7N4O6P
- MW
- 794.6 g/mol
ZX-004779
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