英文别名Mc1046; MC-1046; (1S,3R,5Z,7E,22E)-1,3-Dihydroxy-26,27-cyclo-9,10-secocholesta-5,7,10,22-tetraen-24-one; Calcipotriol, anhydrous impurity A [EP]; Calcipotriol EP Impurity A; Calcipotriol, anhydrous specified impurity A [EP]; (E,4R)-4-[(1R,3aS,4E,7aR)-4-[(2Z)-2-[(3S,5R)-3,5-dihydroxy-2-methylidenecyclohexylidene]ethylidene]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-1-yl]-1-cyclopropylpent-2-en-1-one; (2E,4R)-1-Cyclopropyl-4-[(1R,3aS,4E,7aR)-4-[(2Z)-2-[(3S,5R)-3,5-dihydroxy-2-methylenecyclohexylidene]ethylidene]octahydro-7a-methyl-1H-inden-1-yl]-2-penten-1-one; (5Z,7E,22E)-24-Cyclopropyl-1alpha,3beta-dihydroxy-9,10-secochola-5,7,10(19),22-tetraen-24-one; 9,10-Secochola-5,7,10(19),22-tetraen-24-one, 24-cyclopropyl-1,3-dihydroxy-, (1alpha,3beta,5Z,7E,22E)-; (22E)-1alpha-hydroxy-24-oxo-26,27-cyclo-22,23-didehydrovitamin D3; (22E)-1alpha-hydroxy-24-oxo-26,27-cyclo-22,23-didehydrocholecalciferol; (5Z,7E,22E)-(1S,3R)-1,3-dihydroxy-26,27-cyclo-9,10-seco-5,7,10(19),22-cholestatetraen-24-one; (1α,3β,5Z,7E,22E)-24-Cyclopropyl-1,3-dihydroxy-9,10-Secochola-5,7,10(19),22-tetraen-24-one; IMpurity A of Calcipotriol; Calcipotriol Impurity 1(Calcipotriol EP Impurity A) 
