Molecular Formula:C₆H₁₂N₂O₄S₂=240.29

Properties: White crystals or crystalline powder, odorless, tasteless, almost insoluble in water and alcohol, soluble in diluted acid or alkali hydroxide solutions.

Specifications:

Assay	98.5%101.0%
Specific rotation	-215o-225o
State of solution	98%
Chloride (Cl)	0.02%
Amonium (NH4)	0.02%
Sulfate (SO4)	0.02%
Iron (Fe)	10ppm
Heavy metals (Pb)	10ppm
Arsenic (As2O3)	1ppm
Other amino acids	Chromatographically not detectable
Loss on drying	0.20%
Residue on ignition	0.10%

Uses: For biochemical research, nutriments, treatment of congenital cystinurea, and cold permanent-waving preparation for the hair etc.

Storage: Be preserved under room temperature in wall-closed containers.

Packing: In drums with two-Ply inner PE bags of 20kgs net each.