135821-90-8 1H-Indene-1-pentanol, 4-(2-(2,2-dimethyl-6-methylene-1,3-dioxepan-5-ylidene)ethylidene)octahydro-alpha,alpha,epsilon,7a-tetramethyl-, (1R-(1alpha(R*),3abeta,4E(Z),7aalpha))- A-Homo-3-deoxy-3,3-dimethyl-2,4-dioxa-25-OH-D3 A-Homo-3-deoxy-3,3-dimethyl-2,4-dioxa-25-hydroxyvitamin D3 Hddd-25-OH-D3