Sennoside B Price Not Available 1g Sennoside B Supplier Page Catalog Number BD31711 Molecular Formula C42H38O20 CAS# 128-57-4 Purity 95% SMILES O=C1C2=C(O)C=C(C(O)=O)C=C2[C@@H](C3=C1C(O[C@@H]4O[C@H](CO)[C@@H](O)[C@H](O)[C@H]4O)=CC=C3)[C@@H](C5=C6C(O[C@@H]7O[C@H](CO)[C@@H](O)[C@H](O)[C@H]7O)=CC=C5)C8=CC(C(O)=O)=CC(O)=C8C6=O Size 1g Supplier Page http://www.bldpharm.com/products/128-57-4.html