骨化二醇是化学物质，分子式是C27H44O2H2O，分子量是418.65。

CALCIFEDIOL MONOHYDRATE; 25-OH-D3; 25-HYDROXYVITAMIN D3; 25-hydroxyvitamin d3 monohydrate; 25-hydroxycholecalciferol monohydrate; (5z,7e)-9,10-secocholesta-5,7,10(19)-triene-3b,25-diol monohydrate; CALCIFEDIOL 1-HYDRATE; 9,10-Secocholesta-5,7,10(19)-triene-3,25-diol, monohydrate, (3.beta.,5Z,7E)-; 25-Hydroxycholecalciferol; calcifediol; Vitamin D3, 25-Hydroxy-; 25-Hydroxy-vitamin D3 monohydrate; (3beta,5Z,7E)-9,10-secocholestan-5,7,10(19)-triene-3,25-diol; (3S)-9,10-secocholesta-5,7,10-triene-3,25-diol; (3S,5Z,7E,14xi)-9,10-secocholesta-5,7,10-triene-3,25-diol; (3S,5Z,7E,14xi)-9,10-secocholesta-5,7,10-triene-3,25-diol hydrate; (3S,5Z,7E)-9,10-secocholesta-5,7,10-triene-3,25-diol; (3R,5Z,7E,14xi)-9,10-secocholesta-5,7,10-triene-3,25-diol; (3S,5Z,7E)-9,10-secocholesta-5,7,10-triene-3,25-diol hydrate

S28After contact with skin, wash immediately with plenty of soap-suds.

不慎与皮肤接触后，立即用大量肥皂水冲洗。

S36/37Wear suitable protective clothing and gloves.

穿戴适当的防护服和手套。

S45In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)

若发生事故或感不适，立即就医(可能的话，出示其标签)。

R28Very toxic if swallowed.

吞食有极高毒性。