NINGBO HI-TECH ZONE YEFENG NEW MATERIALS TECHNOLOGY CO.,LTD.
Room 1807,95 business Mansion,No.598 Jiangnan Road, Ningbo (315041) China,
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CAS No. 56-89-3
Other Names Cystine
MF C6H12N2O4S2
EINECS No. 200-296-3
Place of Origin Zhejiang, China (Mainland)
Type Vitamins, Amino Acids and Coenzymes
we suplly L-Cystine,Cystine ,56-89-3 in competitive price
Items | Specification |
Appearance | White crystals or crystalline powder |
Loss on Drying | ≤0.2% |
Residue on Ignition | ≤0.1% |
Specific Rotation | -215°~ -225° |
State of Solution | ≥98.0% |
PH | 5.0 ~ 6.5 |
Heavy Metals | ≤10ppm |
Iron | ≤20ppm |
Arsenic(As2O3) | ≤1ppm |
Sulphate(SO4) | ≤200ppm |
Chloride(Cl) | ≤200ppm |
Ammonium(NH4) | ≤200ppm |
Other Amino Acids | Meets the requirements |
Assay | 98.5 ~101.0% |
Standard | AJI92 |