Supplying polygonum cuspidatum extract(Resveratrol)10%~99% HPLC based on customer requirement, we could control Emodin content..

polygonum cuspidatum extract

Appearance: Grey brown fine powder

Assay: 10%~99% (HPLC) Based on customer requirement

Emodin: 1%~5% (HPLC) Based on customer requirement

Sieve Analysis: 100% Through 80 mesh

Loss on Drying: 5% Max

Ash: 5% Max

Bulk Density: 50~80 g/100ml

Extract Solvent: Water/Alcohol

Heavy Metal: 10ppm Max

Arsenic (As): 1ppm Max

Lead (Pb): 1ppm Max

Mercury (Hg): 1ppm Max

Cadmium (Cd): 1ppm Max