Product division
Impurities & Reference Standards
Pharmacopoeial and non-pharmacopoeial impurities, metabolites, nitrosamines and working standards with characterisation data for QC and regulatory work.
27,990products
6sub-categories
2,746in stock
COA + SDSwith every lot
API Impurities 14,098Pharmacopeial Impurities (EP / USP / BP) 4,399Nitrosamine Impurities 631Stable Isotope Labelled Standards (Deuterated, 13C, 15N) 1,504Metabolites & Degradation Products 3,922API Reference Standards 3,436
![Pregn-4-ene-3,20-dione, 9-fluoro-11-hydroxy-16,17-[(1-methylethylidene)bis(oxy)]-, (11beta,16alpha) chemical structure](/media/structures/XSTGVVQIRLXDLQ-NBZNFXJDSA-N.svg)
Pregn-4-ene-3,20-dione, 9-fluoro-11-hydroxy-16,17-[(1-methylethylidene)bis(oxy)]-, (11beta,16alpha)
- CAS
- 3093-36-5
- Formula
- C24H33FO5
- MW
- 420.5 g/mol
VQ-037576
![Pregn-5-ene-20-carboxylic acid, 3-[(1-oxooctadecyl)oxy]-, methyl ester, (3β,20R)](/media/pack/pregn-5-ene-20-carboxylic-acid-3-1-oxooctadecyloxy-methyl-ester-3beta20r.svg?v=3)
Pregn-5-ene-20-carboxylic acid, 3-[(1-oxooctadecyl)oxy]-, methyl ester, (3β,20R)
- CAS
- 33168-64-8
- Formula
- C41H70O4
- MW
- 626.53 g/mol
VQ-044377
Pregna-1,4-diene-3-one, 17,20-dihydroxy-6-methylene
- CAS
- 1204325-02-9
- Formula
- C22H30O3
- MW
- 342.5 g/mol
VQ-025689
Pregna-1,4,9(11)-triene-3,20-dione,21-chloro-17-hydroxy-16-methyl-,(16alpha)
- CAS
- 151265-36-0
- Formula
- C22H27ClO3
- MW
- 374.9 g/mol
VQ-049156
Pregna-chloror1,4-diene-3,20-dione, 9-chloro-alpha11,21-dihydroxy-16-methyl-, (11beta,alpha 16alpha)
- CAS
- 4306-57-4
- Formula
- C22H29ClO4
- MW
- 392.9 g/mol
VQ-047995
Need a price, a spec or a custom compound?
Send us your list — product names or CAS numbers, grade, quantity and destination. Our team replies with a formal quotation, COA and lead time.