Item

Specification

Appearance

Off-white or white powder

Particle size

95% through 80 mesh

Loss on drying

≤0.5%

Ash content

≤0.5%

Residual solvents

Ethanol≤500ppm

Total heavy metals

≤10ppm

Lead

≤0.5ppm

Arsenic

≤1.0ppm

Mercury

≤0.1ppm

Cadmium

≤1.0ppm

Related

Substances

Emodin

≤0.1%

Cis-resveratrol

≤0.1%

Single impurity

≤0.1%

Total impurities

≤0.5%

Total plate count

≤1000cfu/g

Total yeast&mold

≤100cfu/g

E.Coli

Negative

Salmonella

Negative

Assay

Resveratrol ≥ 98%