Wuhan Benjamin Pharmaceutical Chemical Co.,Ltd

Product Name: L-Cysteine
Synonyms: (R)-2-Amino-3-mercaptopropanoic acid;3-mercapto-l-alanin;alpha-amino-beta-mercaptopropionicacid;alpha-Amino-beta-thiolpropionic acid;alpha-amino-beta-thiolpropionicacid;Cystein;half-cysteine;L-Alanine, 3-mercapto-
CAS: 52-90-4
MF: C3H7NO2S
MW: 121.16

Test standard:

Items	Results
Optical rotation	+8.3 - +9.5°
Heavy metal	≤10ppm
Moisture	≤0.50%
Ignition residue	≤0.10%
Assay	98.0-101.0%
PH	4.5-5.5
Appearance	White Crystalline Powder
Melting point	240 °C (dec.)(lit.)
Boiling point	293.9 °C at 760 mmHg
Density	1.334 g/cm3
Flash point	131.5°C

Application:

1. L-Cysteine has an effective detoxification
2. L-Cysteine can effectively prevent and treat radiation injury
3. L-Cysteine can remove the skin melanin itself, change the nature of the skin itself, the skin becomes natural whitening. It is a kind of ideal natural whitening cosmetics
4. L-Cysteine can improve the symptoms of inflammation and skin allergies.
5. L-Cysteine on horny skin disease is also effective hypertrophy.
6. L-Cysteine has a function to prevent biological aging.