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L-Cysteine monohydrochloride
Molecular formula: C3H7NO2S·HCL·H2O
Molecular weight: 175.63
Description:
Colorless to white fine columnar crystal or white crystalline powder with slight odor and taste (slightly sour). A reduction, there has antioxidant and prevent non-enzymatic browning effect. Melting point 175 °C (decomposition). Soluble in water, acidic aqueous solution, pH value was 1.2 when 3% solubility,1.7 when 1% solubility,2.4 when 0.1% solubility. Is also soluble in ethanol, ammonia and acetic acid, insoluble in ether, acetone, benzene, carbon disulfide and chlorine imitation.
One amino acid, but non-essential amino acids
Quality standard FCC,1996
1.Assay(dyring base) | 98.0%~101.5% |
2.Loss on drying | 8.0%~12.0% |
3.Residue ignition(GT-27) | ≤0.1% |
4.Test about Cystine and other amino acids | Negative |
5.Lead(GT-18) | ≤10mg/kg |
6.Heavy metal | ≤0.002% |
7.Ammonium salt | ≤0.03 |
Application:
Bread improver; nutritional supplements; antioxidants; color fixative. Of acrylonitrile and aromatic acid poisoning detoxification; the prevention of radiation injury; have a therapeutic effect of bronchitis and phlegm; the absorption of alcohol to acetaldehyde in the body into the role of the solution drunk.
According to GB2760-96 requirements, mutatis mutandis, to spices.
