Synonyms: 9,10-Secocholesta-5,7,10(19)-triene-1,3-diol,(1a,3b,5Z,7E)- (9CI);(1S)-Hydroxycalciol;1-Hydroxyvitamin D3;1a-Hydroxycholecalciferol;1a-Hydroxyvitamin D3;Alfarol;Alpha D3;Alfacalcidolum;Alpharol;Bondiol;EinsAlpha;Etalpha;Oxydevit;Un Alfa;Un Alpha;a-Calcidol;