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Amino Acids

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L-Cysteine HCL 99%

    Other Name:L-Cysteine HCL Anhydrous / Monohydrate

    CAS Number:52-90-4 / 7048-04-6

    Molecular Formula:C3H7NO2S

    Molecular Weight:121.15

    Assay:99%

    Standard:USP

    Country of Origin:China

    Shelf Life2 Years



Product description:

L-cysteine, also known as cysteine, is a non-essential amino acid in human body. Amino acid is the constituent unit of protein. Protein is the material basis of life. From human to microorganism, all of them are composed of protein. Proteins are composed of peptides, and the peptide chains of peptides are composed of amino acids. Different proteins are composed of amino acids in different order and length of peptide chains. Genes related to heredity are actually amino acid chains in different order.

Specification:

ITEMS

STANDARDS

Characters

A white crystalline powder, or colorless crystals, freely soluble in water, slightly soluble in alcohol, practically insoluble in ether

Infrared Spectrum

Compares to standard

Specific Rotation  

+5.5°~+7.0°

Appearance of Solution

Clear and not more intensely colored than  reference solution BY6

Ninhydrin-positive Substances

NMT0.5%

Sulfate(SO4)

NMT300ppm

Ammonium(NH4)

NMT200ppm

Chloride (Cl)

19.89%~20.29%

Iron(Fe)

NMT20ppm

Heavy Metals

NMT10ppm

Lead

NMT3.0ppm

Arsenic(As2O3)

NMT3.0ppm

Loss on Drying

8.0%~12.0%

Sulphated Ash

NMT0.1%

Assay

99.0%~100.5%

Conclusion

The product meets the requirements of EP7.


Application:

1. L-Cysteine Hydrochloride Monohydrate is widely used in fields of medicine, food processing, biological study, materials of chemical industry and so on.
It is a promotor for bread fermentation. It promotes the form of glutelin and prevents from getting ageing.

2. Used in cosmetic.
3. It is used in natural fruit juice for preventing Vitamin C oxide. It has a detoxification for poison of acrylonitrile aromafic acid. It is used for protecting against radiation harm and therapy of bronchitis and liquefy sputum.


Function:

1. Food grade: flour improver, nutritional supplement, antioxidants;
2. Medicine grade: In pharmacy, used in the treatment of radioactive drugs poison, heavy metal poison, toxic hepatitis, serum sickness, and can prevent liver degeneration;
3. Cosmetics additive: whiting skin, dissolving cutin, anti-aging. The component of cosmetics marcel extract, sunscreen, germinal perfume, hair essence.



Certificate Availability

ISO9001

HALAL

KOSHER

Packaging Details

Other

Storage condition: Stored in a well-sealed container in a dry, cool place, keep away from strong light and heat.

Shelf life: 24 months under the conditions above and in its original packaging. 



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