Synonyms: 9,10-Secoergosta-5,7,10(19),22-tetraene-1,3,25-triol,(1a,3b,5Z,7E,22E)- (9CI);1,25-Dihydroxycalciferol;1,25-Dihydroxyergocalciferol;1,25-Dihydroxyvitamin D2;1a,25-Dihydroxycalciferol;1a,25-Dihydroxyergocalciferol;1,3-Cyclohexanediol,4-methylene-5-[(2E)-2-[(1R,3aS,7aR)-octahydro-1-[(1R,2E)-5-hydroxy-1,4,5-trimethyl-2-hexen-1-yl]-7a-methyl-4H-inden-4-ylidene]ethylidene]-,(1R,3S,5Z)-;Ercalcitriol;Ro 17-6218;