Last modified: Tue Jul 6 15:29:16 BST 2004

Steroid carbon nomenclature

Trivial name: 11ß-Hydroxytestosterone
Systematic name: 11ß,17ß-Dihydroxyandrost-4-en-3-one
Molecular formula: C19H28O3
CAS Number: 1816-85-9

Product [1]

Pathway: Testosterone -> 11ß-Hydroxytestosterone
Reaction: steroid ß-hydroxylation at C11
Enzyme: P450c11 (steroid 11ß-hydroxylase), CYP11B


  1. Ruckpaul, K. and Rein, H., Eds. (1990) Frontiers in Biotransformation, vol. 3: Molecular Mechanisms of Adrenal Steroidogenesis and Aspects of Regulation and Application. Taylor & Francis, London.

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