Name:L-Cystine

Properties:White crystal or crystalline powder, odorless, flavorless, almost insoluble in water or ethanol, soluble in diluted acid or basic hydroxide solutions.

Quality index:

Item	Index
Specific rotatory power[α] D20	-215º — -225º
Clarity	≥98.0%
Ammonium salt[NH4]	≤0.02%
Chloride[CL]	≤0.02%
Residue on ignition	≤0.10%
Sulfate[SO4]	≤0.02%
Iron salt[Fe]	≤10 ppm
Heavy metal[Pb]	≤10 ppm
Arsenic salt	≤1 ppm
Other amino acid	Color layer can not be checked out.
Loss on drying	0.20%
Content	98.5 — 101.0%

Use:

Used in biochemical research, nutrient; cure congenital cystinuria etc..

Storage:

Stored in sealed container at room temperature.

Packing:

Packed in cardboard drum with the lining of two layers of plastic bags. NW:25 KG per drum.