it's known as Ethylenediamine-N',N'-bis(2-hydroxyphenylacetic acid),Ferric sodium complex.EDDHA-Fe-6 is a micro iron chelate and is developed for correction and prevention of iron deficiency in agricultural and horticultural crops, particularly in alkaline and calcareous soils. Effectively help the healthy growth of plants.CAS is 16455-61-1;The package is 25kg/kraft bag;