Product division
Impurities & Reference Standards
Pharmacopoeial and non-pharmacopoeial impurities, metabolites, nitrosamines and working standards with characterisation data for QC and regulatory work.
28,554products
6sub-categories
2,746in stock
COA + SDSwith every lot
API Impurities 14,252Pharmacopeial Impurities (EP / USP / BP) 4,401Nitrosamine Impurities 650Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,612Metabolites & Degradation Products 4,146API Reference Standards 3,493
Formoterol Fumarate Dihydrate EP Impurity I (R,S-isomer) ((R,S)-Formoterol)
- CAS
- 67346-51-4
- Formula
- C19H24N2O4
- MW
- 344.4 g/mol
VQ-029211
Formoterol Fumarate Dihydrate EP Impurity I (S,R-isomer) ((S,R)-Formoterol)
- CAS
- 67346-50-3
- Formula
- C19H24N2O4
- MW
- 344.4 g/mol
VQ-029210
![Fosamprenavir pyrophosphate [Early eluting]](/media/pack/fosamprenavir-pyrophosphate-early-eluting.svg?v=3)
Fosamprenavir pyrophosphate [Early eluting]
- CAS
- 316123-24-7
- Formula
- C25H37N3O12P2S
- MW
- 665.59 g/mol
VQ-044435
![Fosamprenavir pyrophosphate [late eluting]](/media/pack/fosamprenavir-pyrophosphate-late-eluting.svg?v=3)
Fosamprenavir pyrophosphate [late eluting]
- CAS
- 316123-26-9
- Formula
- C50H70N6O17P2S2
- MW
- 1153.2 g/mol
VQ-044436
Fosaprepitant Dimeglumine Desfluoro Impurity
- CAS
- 2975348-16-2
- Formula
- C37H57F6N6O16P
- MW
- 986.8 g/mol
In stock
Fosaprepitant Dimeglumine Dibenzylester Impurity
- CAS
- 265121-01-5
- Formula
- C37H34F7N4O6P
- MW
- 794.6 g/mol
VQ-005011
Fosaprepitant Dimeglumine Impurity F (Dimeglumine salt)
- CAS
- 2035475-11-5
- Formula
- C44H62F7N6O16P
- MW
- 1095 g/mol
In stock
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