英文别名(3,6Z,22E)-9,10-Secoergosta-5(10),6,8,22-tetraen-3-ol; (6Z,22E)-9,10-Secoergosta-5(10),6,8,22-tetren-3β-ol; Preergocalciferol; Previtamin D; 3-Cyclohexen-1-ol, 3-[(1Z)-2-[(1R,3aR,7aR)-2,3,3a,6,7,7a-hexahydro-7a-methyl-1-[(1R,2E,4R)-1,4,5-trimethyl-2-hexenyl]-1H-inden-4-yl]ethenyl]-4-methyl-, (1S)-; Ergocalciferol Impurity 8; 9.10-Seco-ergostatetraen-(5(10).6c.8.22t)-ol-(3β); Praevitamin-D2; (3aR)-3ar-Methyl-7-[2c-((S)-5-hydroxy-2-methyl-cyclohexen-(1)-yl)-vinyl-(1r)]-3c-((1R:4R)-1.4.5-trimethyl-hexen-(2t)-yl)-(7atH)-3a.4.5.7a-tetrahydro-indan; (3S)-9,10-seco-ergosta-5(10),6c,8,22t-tetraen-3-ol; Praevitamin 
