CAS : 69-89-6 HS Code : 2933990099 Packing : 25kg/Drum Application 2,6-Dihydroxypurine, an organic compound with the formula C5H4N4O2 and molecular weight 152.111, white to off-white crystalline powder, is a group commonly used as a mild stimulant and bronchodilator, especially for the treatment of asthma symptoms. Derivatives of xanthine include theophylline, theobromine (found mainly in chocolate), and Madeine. The main compound, xanthine, is a product of the purine degradation pathway and is converted to uric acid by xanthine oxidase.