Last modified: Fri Jul 9 14:32:37 BST 2004

Steroid carbon nomenclature

Trivial name: 4-Hydroxyestradiol
Systematic name: Estra-1,3,5(10)-triene-3,4,17ß-triol
Molecular formula: C18H24O3
CAS Number: 5976-61-4

Product [1]

Pathway: Estradiol -> 4-Hydroxyestradiol
Reaction: steroid hydroxylation at C4
Enzyme: P450NMb, CYP2G1


  1. Ding, X. and Coon, M.J. (1994) Steroid metabolism by rabbit olfactory-specific P450 2G1. Arch. Biochem. Biophys. 315, 454-459.

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