(22E,25R)-22-Dehydro-1alpha,25-dihydroxy-26-methylvitamin D3 (22E,25S)-22-Dehydro-1alpha,25-dihydroxy-26-methylvitamin D3 123000-44-2 25-Dehydro-1,25-dihydroxy-26-methylvitamin D3 27-Nor-9,10-secocholesta-5,7,10(19),22-tetraene-1,3,25-triol, 25-ethyl-, (1alpha,3beta,5Z,7E,22E,25S)- DDMVD