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CorticosteroidsIn stockAPI reference standardPh. Eur.

Betamethasone phosphate EP CRS

JR-ST1006-03

Variant ofBetamethasone Sodium Phosphate EP CRS

Betamethasone 21-phosphate free acid (9-fluoro-11β,17-dihydroxy-16β-methyl-3,20-dioxopregna-1,4-dien-21-yl dihydrogen phosphate); European Pharmacopoeia reference standard.

Structure & identifiers

2D structure — select to enlarge

Catalogue code
JR-ST1006-03
Category
Corticosteroids
CAS number
360-63-4
Grade
API reference standard
Pharmacopoeia
Ph. Eur.
Molecular formula
C22H30FO8P
Molecular weight
472.45 g/mol
Pack sizes
25 mg · 50 mg · 100 mg · 500 mg
Record updated
12 Nov 2026

Chemical name

Betamethasone phosphate EP CRS

SMILES

C[C@@H]1C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)[C@@]3(F)[C@@H](O)C[C@]2(C)[C@@]1(O)C(=O)COP(=O)(O)O

Compound identity, CAS number, formula and structure are referenced from public chemical databases. Contact us to confirm availability, pack sizes and documentation for your order.

Betamethasone phosphate EP CRS

25 mg · ×1