Chestnut Shell Extract

we are offering chestnut shell extract.
product name: chestnut shell extract
ingredient description: extract from the shell of castanea mollissima bl.
appearance: brown powder
physicochemical property:
soluble in water, aqueous ethanol, insoluble in acetic ether and ethane
storage:
store in tightly closed containers out of direct heat and light in a cool and dry place
shelf life:
it is available within 24 months under normal unopened condition
packing: 15 kg, 20 kg cardboard drum
color value: e (1%, 1cm, 495-505nm): nlt5
microbe:
total plate count: nmt1000cfug
pathogenic bacteria: negative
heavy metals:
arsenic(as): nmt1mgkg
plumbum(pb): nmt5mgkg