cysteine Cas:3374-22-9

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cysteine

Synonyms:
2-Amino-3-mercaptopropionicacid
EINECS 222-160-2
2-Amino-3-mercaptopropanoic acid
DL-Cysteine
2-amino-3-sulfopropionic acid
2-amino-3-sulfanylpropanoic acid
2-Amino-3-mercaptopropionic acid
Cysteine
 
molecular formula: C3H7NO2S
Molecular weight: 121.158
 
 
Physical Properties:
Appearance and properties: white solid
Density: 1.334 g/cm
Boiling point: 293.9ºC at 760 mmHg
Melting point: 225ºC (dec.)
Flash point: 131.5ºC
Refractive index: 1.549
 
Specification:
Items of Analysis Standard of Analysis Test Results
Appearance White crystal or crystalline powder Qualified
Specific rotation -1.00°~+1.00°(C=2,1N HCl)
Loss on drying ≤0.50% 0.20%
Assay 98.00%~101.00% 98.90%
Application:
Cysteine is a non-essential amino acid that can be synthesized by the human body under normal physiological conditions if a sufficient quantity of methionine is available. Cysteine is commonly used as a precursor in the food and pharmaceutical industries. Cysteine is used as a processing aid for baking, as an additive in cigarettes, as well as in the preparation of meat flavours.
 
Package and Storage:
25KG/barrel
 
 
 



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