Term Name:	17alpha-hydroxy-C21-steroid
Synonyms:	a 17alpha-hydroxy-C21-steroid
Definition:	Any C21-steroid carrying a hydroxy substituent at the 17alpha-position. Note that individual examples may have ring substituents at other positions and/or contain double bonds, aromatic A-rings, expanded/contracted rings etc., so the formula and mass may vary from that given for the generic structure.
Ontology:	Chebi [CHEBI:138141]