They are phenolic compounds.

Subtypes:

Sennosides, emodin and rhein are from anthraquinones family.

Food Sources:

Vegetables: rhubarb, aloe vera, and senna.

Health Benefits:

1. They have laxative and cathartic effects.
2. They have anti-cancer and antimalarial activities.
3. Are used in constipation and colon cleansing.