... ,7E)-9,10-secocholesta-5,7,10(19)-trien-3β-ol. Identification cholecalciferol; calciol; (5Z,7E)-9,10-secocholesta-5,7 ... ,10(19)-trien-3β-ol; (5Z,7E)-(3S)-9,10-secocholesta-5,7,10(19 ... )-trien-3-ol; vitamin D3 CAS NO.: 67-97-0Appearance: white or almost ...