5-{2-[1-(5-Hydroxy-1,5-dimethyl-hexyl)-7a-methyl-octahydro-inden-4-ylidene]-ethylidene}-4-methylene-cyclohexane-1,3-diol 5,6-trans-1a,25-Dihydroxyvitamin D3 Calcitriol Impurities A 5,6-trans-Calcitriol (1R,3S,5E)-4-Methylene-5-[(2E)-2-[(1R,3aS,7aS)-octahydro-1-[(1R)-5-hydroxy-1,5-diMethylhexyl]-7a-Methyl-4H-inden-4-ylidene]ethylidene]-1,3-cyclohexanediol (1α,3β,5E,7E)- 9,10-Secocholesta-5,7,10(19)-triene-1,3,25-triol 1,25-Dihydrox (1R,3S,E)-5-((E)-2-((1R,3aS,7aR)-1-((R)-6-hydroxy-6-Methylheptan-2-yl)-7a-Methyldihydro-1H-inden-4(2H,5H,6H,7H,7aH)-ylidene)ethylidene)-4-Methylenecyclohexane-1,3-diol (6R)-6-[(1R,4E,7aR)-4-[(2Z)-2-[(3S,5R)-3,5-bis[[tert-butyl(diMethyl)silyl]oxy]-2-Methylene-cyclohexylidene]ethylidene]-7a-Methyl-2,3,3a,5,6,7-hexahydro-1H-inden-1-yl]-2-Methyl-heptan-2-ol InterMediate of Calcitriol 5-{2-[1-(5-Hydroxy-1,5-diMethyl-hexyl)-7a-Methyl-octahydro-inden-4-ylidene]-ethylidene}-4-Methylene- Calcitriol Impurity 1(Calcitriol EP Impurity A) Calcitriol EP Impurity A/5,6-trans Calcitriol/(1R,3S,E)-5-(2-((1R,3aS,7aR,E)-1-((R)-6-Hydroxy-6-methylheptan-2-yl)-7a-methyloctahydro-4H-inden-4-ylidene)ethylidene)-4-methylenecyclohexane-1,3-diol Calcitriol EP Impurity A (5,6-trans Calcitriol) Vitamin D5 Injection 1,3-Cyclohexanediol, 4-methylene-5-[(2E)-2-[(1R,3aS,7aS)-octahydro-1-[(1R)-5-hydroxy-1,5-dimethylhexyl]-7a-methyl-4H-inden-4-ylidene]ethylidene]-, (1R,3S,5E)- (6R)-6-[(1R,4E,7aR)-4-[(2Z)-2-[(3S,5R)-3,5-bis[[tert-butyl(d... Calcitriol impurity A (1R,3S,E)-5-((E)-2-((1R,3aS,7aR)-1-((R)-6-hydroxy-6-methylheptan-2-yl)-7a-methylhexahydro-1H-inden-4(2H)-ylidene)ethylidene)-4-methylenecyclohexane-1,3-diol Calcitriol EP Impurity A 5,6-trans-1alpha,25-Dihydroxyvitamin D3 N-1 intermediate of calcitrol 73837-24-8 Chiral Reagents Impurities Intermediates & Fine Chemicals Pharmaceuticals