It is a compound of iron porphyrin made of 4 porphyrin rings and one ferrous iron., Molecular formula C34H32ClFeN4O4, Molecular weight is 651.96. It is made of pig blood and can be used in the therapy of iron deficiency anemia. It can be used in iron supply food, drug, health food and cosmetics. Should be interested in,pls feel free to contact us.