24-F-1,25(OH)2D3 24-Fluoro-1,25-dihydroxycholecalciferol 24-Fluorocalcitriol 86677-62-5 9,10-Secocholesta-5,7,10(19)-triene-1,3,25-triol, 24-fluoro-, (1alpha,3beta,5Z,7E,24R)-