L-Cysteine

Basic information

  • Product Name:L-Cysteine
  • CasNo.:52-90-4
  • MF:C3H7NO2S
  • MW:

Physical and Chemical Properties

  • Purity:99%
  • Boiling Point:
  • Packing:White Powder
  • Throughput:1 million|Metric Ton|Year
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Product Details

CasNo: 52-90-4

MF: C3H7NO2S

Appearance: White Powder

Delivery Time: one week

Throughput: 1 million|Metric Ton|Year

Purity: 99%

Products Description:

Mainly used in medicine, food, cosmetics, biochemical research, etc.
1.The product has detoxification effect and can be used for acrylonitrile poisoning and aromatic acidosis. This product also has the effect of preventing radiation damage to the human body. It is also a medicine for the treatment of bronchitis, especially as a phlegm medicine (mostly used in the form of acetyl L-cysteine methyl ester).
2.In terms of food, it is used in bread to promote the formation of gluten, promote fermentation, mold release, and prevent aging. Used in natural juices to prevent the oxidation of vitamin C and prevent the juice from turning brown. Used as a stabilizer for milk powder, as well as a nutrient for pet food, etc.
3. In cosmetics, it can be used as a raw material for whitening cosmetics and non-toxic and side-effect hair dyeing and perm preparations. It maintains the activity of important sulfhydryl enzymes in the keratin production of skin proteins, and supplements sulfur groups to maintain the normal metabolism of the skin and regulate the underlying melanin produced by the pigment cells in the lowermost layer of the epidermis. It is a very ideal natural whitening cosmetic. It can remove the melanin of the skin itself, change the nature of the skin itself, and make the skin whiter naturally.

Stored: in dry, clean and ventilated places. In order to avoid pollution, it is prohibited to place this product together with poisonous or harmful substances. The expiry date is for two years.

Specification:

Item

Specifications

Specific rotation[a]D20°

+ 8.3°~ +9.5°

State of solution (Transmittance)

≥95.0%

Loss on drying

≤0.50%

Residue on ignition

≤0.10%

Heavy metals(Pb)

≤10PPM

Chloride (Cl)

≤0.04%

Arsenic (As2O3)

≤1PPM

Iron (Fe)

≤10PPM

Ammonium (NH4)

≤0.02%

Sulfate (SO4)

≤0.030%

Other amino acids

Chromatographically

pH value

4.5 ~ 5.5

Assay

98.0%~101.0%