(1alpha,3beta,7E,22E)-19-Nor-9,10-secoergosta-5,7,22-triene-1,3,25-triol (7E,22E)-19-Nor-9,10-secoergosta-5,7,22-triene-1alpha,3beta,25-triol 131918-61-1 19-Nor-1,25-(OH)2D2 19-Nor-1alpha,25-dihydroxyvitamin D2 19-Nor-9,10-secoergosta-5,7,22-triene-1,3,25-triol, (1alpha,3beta,7E,22E)- Compound 49510 Paricalcitol Paricalcitol [USAN] Zemplar