Rhein CAS 478-43-3
Rhein CAS 478-43-3 1,8-Dihydroxy-3-Carboxyanthraquinone is light brown to light yellow crystalline powder appearance. Insoluble in water, soluble in pyridine, sodium bicarbonate aqueous solution, slightly soluble in ethanol, benzene, aminoform, ether and petroleum ether. It is the best raw material to prepare health care products, which can reduce fat, reduce weight, purge constipation and detoxify, clean internal environment, prevent stomach cancer and delay aging.