Anthraquinone glycosides: sennosoides A and B (dianthrone type)
Aglycones of free anthraquinones: rhein, aloe, emodin.
Pectose type of mucilage.
Uses: laxative or purgative used in acute constipation and in case of:
Haemorrhoids, anal fissures, x-ray examinations, before and after abdominal surgeries.
Rhuthenium red: for mucilage
Modified Borntrager's test: for dianthrone glycosides gives rose red colour.