It is a kind of natural edible pigment extracted from plants rich in Chlorophyll. The main compositions are disodium copper chlorophyll and trisodium copper chlorophyll. The powder from Kelly to darkslategray is soluble in water, but insoluble in oil. At PH 7.0 or above, it is green and stable. Its main compents are chlorophyll A(R=CH3) and chlorophyll A(R=CH10)