L-Cysteine Food Grade 99% Purity

• Customization: Available
• CAS No.: 52-90-4;4371-52-2
• Formula: C3h7no2s
• Model NO.: 4371-52-2
• EINECS: 200-158-2
• Packaging Material: Plastic
• Storage Method: Normal
• Shelf Life: 24 Months
• Nutrient Composition: Amino Acid
• Resource: Natural
• The content of active substances: 98.5%
• Quality Standard: USP
• Transport Package: Carton, Drum
• Specification: 25Kg
• Origin: China
• HS Code: 2930909099
• Production Capacity: 100, 000kg/Year

Product Description

Product Name                   L-Cysteine
Alias                                   L-Mercapto Alanine
Molecular Formula           C₃H₇NO₂S
Molecular Weight             121.15
CAS No.                              52-90-4;4371-52-2
Shelf Life                            2 years  
Quality Standard               AJI92

Specification:

Analytical Items	Standard
Appearance	White crystals or crystalline powder
Assay	98.0~101.0%
pH value	4.5~5.5
Specific optical rotation[a]D^20°	+8.3^o~ +9.5^o
State of solution (Transmittance)	≥95.0%
Loss on drying	≤0.5%
Residue on ignition	≤0.1%
Chloride (Cl)	≤0.04%
Sulfate (SO4)	≤0.03%
Ammonium (NH4)	≤0.02%
Iron (Fe)	≤0.001%
Heavy metals (Pb)	≤0.001%
Arsenic	≤0.0001%

Application:  
1) Mainly used in medicine, cosmetics, biochemical research and other aspects.

2) Used in bread, to promote the formation of gluten and promote fermentation, mold, prevent aging.

3) Used in natural juices to prevent vitamin C from oxidizing and to prevent the juices from turning brown.

4) The product has a detoxification effect, can be used for acrylonitrile poisoning, aromatic acidosis.

5) It is also used to prevent radiation damage to the body and is a drug for the treatment of bronchitis, especially as a expectorant (mostly in the form of acetyl l-cysteine methyl ester).

6) Cosmetics mainly used for beauty water, perm fluid, sun - proof skin care cream.

Packing: 
25kg/drum

Storage: 
Store in tightly closed original container, protected from light, in a dry place.