9,10-Secoergosta-5(10),6,8,22-tetraen-3-ol,(3b,6Z,22E)- (9CI);9,10-Secoergosta-5(10),6,8,22-tetraen-3b-ol (8CI); Preergocalciferol (6CI,7CI); Previtamin D;Previtamin D2
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