17alpha-hydroxy-C21-steroid 0 CHEBI:138141 JSIVWCLRCGAVHN-ILZKQPLKSA-N C21H36O InChI=1S/C21H36O/c1-4-21(22)14-11-18-16-9-8-15-7-5-6-12-19(15,2)17(16)10-13-20(18,21)3/h15-18,22H,4-14H2,1-3H3/t15?,16?,17?,18?,19?,20?,21-/m1/s1 a 17alpha-hydroxy-C21-steroid 304.27662 C1CCCC2C1(C3C(CC2)C4C(CC3)([C@](CC4)(CC)O)C)C 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. chebi_ontology 304.511 MetaCyc:17a-hydroxy-C21-steroids 17alpha-hydroxy steroid C21-steroid