Customization: | Available |
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CAS No.: | 52-90-4 |
Formula: | C3h7no2s |
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Top Quality 99% Food Grade Amino Powder CAS 52-90-4 L-Cysteine Powder
L-Cysteine
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Common Name | L-Cysteine | ||
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CAS Number | 52-90-4 | Molecular Weight | 121.15800 | |
Density | 1.334 g/cm3 | Boiling Point | 293.9ºC at 760 mmHg | |
Molecular Formula | C3H7NO2S | Melting Point | 220ºC | |
Refractive Index | 8.8 ° (C=8, 1mol/L HCl) | Flash Point |
131.5ºC |
Food Grade:
Item | Specifications (AJI97 ) |
Appearance | White crystal or crystalline powder; tasteless |
Assay, % | 98.5~101.0 |
Specific rotation | -218°~ -224° |
Loss on drying, % | ≤0.2 |
Transmittance, % | ≥98.0 |
Chloride (as Cl), % | ≤0.02 |
Sulfate (as SO4), % | ≤0.02 |
Ammonium as (as NH4), % | ≤0.02 |
Iron (as Fe), % | ≤0.001 |
Heavy Metals (as Pb), % | ≤0.001 |
pH Value | 5.0~6.5 |
Residue on ignition, % | ≤0.1 |
Other amino acid | Conforms |
Item | Specifications (AJI97 ) |
Item | Specifications (AJI97 ) |
Appearance | White crystal or crystalline powder; tasteless |
Assay, % | 98.5~101.0 |
Specific rotation | -218°~ -224° |
Loss on drying, % | ≤0.2 |
Transmittance, % | ≥98.0 |
Chloride (as Cl), % | ≤0.02 |
Sulfate (as SO4), % | ≤0.02 |
Ammonium as (as NH4), % | ≤0.02 |
Iron (as Fe), % | ≤0.001 |
Heavy Metals (as Pb), % | ≤0.001 |
pH Value | 5.0~6.5 |
Residue on ignition, % | ≤0.1 |
Other amino acid | Conforms |
Item | Specifications (AJI97 ) |
Appearance | White crystal or crystalline powder; tasteless |
Assay, % | 98.5~101.0 |
Specific rotation | -218°~ -224° |
L-Cysteine is widely used in fields of medicine, food processing, biological study, materials of chemical industry and so on.
Used in the cure of liver disease, antioxidant and antidote.