sennoside molecule 3d rendering, flat molecular structure with chemical formula and atoms color coding

sennoside diastereoisomeric mixture laxative cathartic senna alexandrina cassia angustifolia molecule molecular structure chemical formula c42h38o20 3d model medicine pharmaceutical atom drug skeletal chemistry treatment rectum action interaction medication pharmacy preparation science constipation pharmacology remedy mount large intestine make well pharmaceutic side effect bond atomic disease hospital hydrogen structural