6β-hydroxymethylprednisolone

JR-ST1013-01

Variant ofMethylprednisolone EP/BP CRS

6beta-Hydroxy-6alpha-methylprednisolone (6β,11β,17,21-tetrahydroxy-6α-methylpregna-1,4-diene-3,20-dione); C-6 hydroxylation oxidative impurity of methylprednisolone.

Structure & identifiers

2D structure — select to enlarge

Catalogue code

JR-ST1013-01

Category

Corticosteroids

CAS number

229019-42-5

Grade

Impurity reference standard

Pharmacopoeia

Ph. Eur.

Molecular formula

C22H30O6

Molecular weight

390.48 g/mol

Pack sizes

25 mg · 50 mg · 100 mg · 500 mg

Record updated

12 Nov 2026

Chemical name

6β-hydroxymethylprednisolone

SMILES

C[C@]12C[C@H](O)[C@H]3[C@@H](C[C@@](C)(O)C4=CC(=O)C=C[C@]43C)[C@@H]1CC[C@]2(O)C(=O)CO