L-Cystine [ 56-89-3 ]

Purity: 99.0%, white sheet-shape crystallization or crystalloid powder, Very slightly soluble in water; Insoluble in ethanol and other organic solvent, soluble in dilute acid and alkaline fluid, easy decomposition in hot lye, PI4.6; Decomposition point for 260-261 ℃; [alpha] than spin photometric 20D - 223.4 ° (0.5-2.0 mg/ml, HCl in 5mol/L). L - whether is nutritional fortifiers, be helpful for animal feed development, increase weight and liver and kidney function, improve the quality of fur. Important intermediates and preparation of oral preparations or amino acid compound infusion, dye and agent, cosmetics, dairy additives, grease antioxygen, etc. Also used in heavy metal antidotes to hepatitis or other drugs. Have stimulative airframe cells REDOX ability to increase leukocyte prevent development, can reduce pathogenic disease, coronary heart disease, leukemia fatty liver cirrhosis, promote prevention hair growth prevent skin aging, also typhoid dysentery, flu, and so on, asthma, eczema and various poisoning neuralgia, absenteeism. Used in biochemical studies, biological preparation of media, medicine for hepatitis, radioactive injury prevention, various bald hair disease, and drug poisoning, also can used for acute infectious disease, bronchus asthma, neuralgia, and eczema and burn adjunctive treatment. Used in medicine, cosmetics, food additive, etc