High quality L-Cystine as food and medicine Grade chemical

High quality L-Cystine as food and medicine Grade chemical
chemical formula：C6H12N2O4S2 CAS No. 56-89-3
Product Name: L-Cystine Quantity: 1000kg Batch No: 1409020302
Producing date: 2014.06302 Sampling date: 2014.03.02 Shelf life: two years
Reference Standard: USP30
Item Specifications Results
Appearance White crystalline powder Conforms
Specific rotation[a]D20 -215° ~ -225° -219°
Chloride(Cl) ≤ 0.02% <0.02%
Ammonium(NH4) ≤ 0.02% <0.02%
Sulfate(SO4) ≤0.03% <0.03%
Iron(Fe) ≤20PPm <20PPm
Heavy metals(Pb) ≤10PPm <10PPm
Loss on drying ≤ 0.50% 0.30%
Residue on ignition ≤0.10% 0.09%
Assay 98.5 ~ 101.0% 99.1%
Conclusion: This product conforms to USP30 standard.

Usage:Used in biochemical research. Preparation of biological medium. Used in biochemical and nutritional research, medicine has the body to promote the cell oxidation and reduction function, increase white blood cell and prevent pathogens such as development role. Mainly used for all kinds of hair loss syndrome. Also used for dysentery, typhoid, influenza and acute infectious disease, asthma, neuralgia, eczema, and various poisoning disease, etc., and maintain the function of protein configuration. They are also used as food additive agent.