29953-50-2 CL-72-VB-2 CL-72-VB-s NSC 274540 Roridin H Roridine H Verrucarin A, 2',3'-didehydro-7'-deoxo-2'-deoxy-7',5'-(ethylideneoxy)- Verrucarin A, 2',3'-didehydro-7'-deoxo-2'-deoxy-7',5'-(ethylideneoxy)- (9CI) Verrucarin H