It is a kind of natural edible pigment extracted from beetroot..It is soluble in water ,alcohol and solution of water and alcohol,but insoluble in oil and absolute alcohol.
The environment PH value can influence its hue and stability .At PH 2.0~6.0 the color is stable salmon pink;at PH 7.0 it's blue ;at PH above 7.0 it is unstable green.
It can be used in the coloring of wine,carbonic acid drinks,juice drink,jam,jelly, candy, cakes, ice-cream,pastry and puffed food.