Synonyms: 25-Hydroxyergocalciferol;21343-40-8;25-HYDROXYVITAMIN D2;25-Hydroxycalciferol;25-Hydroxyvitamin D 2;AC1NWQ5Z;17937_FLUKA;17937_SIGMA;MolPort-002-045-697;LMST03010030;LS-187060;LS-187670;25-hydroxyvitamin D2 / 25-hydroxyergocalciferol;A815284;(5Z,7E,22E)-(3S)-9,10-seco-5,7,10(19),22-ergostatetraene-3,25-diol;9,10-Secoergosta-5,7,10(19),22-tetraene-3,25-diol, (3beta,5Z,7E,22E)-;(1S,3Z)-3-[(2E)-2-[(1R,3aS,7aR)-1-[(E,2R,5S)-5,6-dimethyl-6-oxidanyl-hept-3-en-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidene-cyclohexan-1-ol;(1S,3Z)-3-[(2E)-2-[(1R,3aS,7aR)-1-[(E,2R,5S)-6-hydroxy-5,6-dimethylhept-3-en-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylene-1-cyclohexanol;(1S,3Z)-3-[(2E)-2-[(1R,3aS,7aR)-1-[(E,2R,5S)-6-hydroxy-5,6-dimethylhept-3-en-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexan-1-ol