C-Peptide 2, rat, 31-amino-acid peptide, is a component of proinsulin. C-Peptide 2, rat can inhibit glucose-induced insulin secretion.

Oxyresveratrol 4-O-β-D-glucopyranoside (compound 3) is a natural product that can be obtained from the root bark of Morus atropurpurea. Oxyresveratrol 4-O-β-D-glucopyranoside has potential in studies of diabetes, arthritis, rheumatism, cough and headache.

6-hydroxyl kaempherol-3,6-O-diglucosyl-7-O-Glucuronic acid is a natural product from Carthamus tinctorius Linn.