https://www.selleckchem.com/products/blu9931.html
Two new steroid sulfates 1 and 2 were obtained from a lipophilic extract of an undescribed bryozoan species in the genus Calyptotheca. The structures of compounds 1 and 2 were elucidated by spectroscopic methods and chemical modifications. Steroids 1 and 2 exhibited moderate cytotoxicity at IC50 54 and 30 µM, respectively, against NBT-T2 cells.The world is facing the pandemic linked to COVID-19 virus infection that has rapidly spread worldwide, and severe complications have been reported to occur in around a third of patients. To date,