Cat. Name CAS. Structure Purity
R039881 (3S)-1,3-Bis-O-(tert-Butyldimethylsilyl)-3-hydroxy 111594-58-2 (3S)-1,3-Bis-O-(tert-Butyldimethylsilyl)-3-hydroxy-5,6-trans-vitamin D2 ≥ 95%