not substituted in position 17 beta by a carbon atom, e.g. oestrane, oestradiol

Introduced: July 1974

Last revised: January 2006

Full Title

Medicinal preparations containing organic active ingredients > Compounds containing cyclopenta[a]hydrophenanthrene ring systems; Derivatives thereof, e.g. steroids > not substituted in position 17 beta by a carbon atom, e.g. oestrane, oestradiol

Classification Context

Section:: HUMAN NECESSITIES
Class:: MEDICAL OR VETERINARY SCIENCE; HYGIENE
Subclass:: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES

3 direct subcodes

Child Classifications

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A61K 31/566 having an oxo group in position 17, e.g. oestrone
A61K 31/567 substituted in position 17 alpha, e.g. mestranol, norethandrolone
A61K 31/568 substituted in positions 10 and 13 by a chain having at least one carbon atom, e.g. androstane, testosterone