Customization: | Available |
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CAS No.: | 52-89-1 |
Formula: | C3h8clno2s |
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Name: L-Cysteine hydrochloride
CAS No.:52-89-1
Einecs:200-157-7
Molecular formula:C3H8ClNO2S
Molecular weight:157.61
Melting point:140-142ºC
Boiling point:293.9 ºCat 760 mmHg
Character: White crystalline or crystal powder with strong acid odor, soluble in water, insoluble in ethanol and ether.
Function
L-Cysteine hydrochloride anhydrous: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. Also used in cosmetic. 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.
L-Cysteine hydrochloride anhydrous Usage:
1.Food grade: flour improver, nutritional supplement, antioxidants.
2.Medicine grade: In pharmacy, Cysteine is used in the treatment of radioactive drugs poison, heavy metal poison, toxic hepatitis, serum sickness, and can prevent liver degeneration.
3.Comestic grade: whiting skin, dissolving cutin, anti-aging. The component of cosmetics marcel extract, sunscreen, germinal perfume, hair essence.
Specification
Item | Specifications | |
USP | AJI | |
Appearance | White crystals or crystalline powder; strongly acid taste. | |
Identification | Infrared Absorption | --- |
Specific optical rotation | +5.6 °- +8.9 ° | +5.5 °- +7.0 ° |
State of solution (Transmittance) | --- | ≥ 98.0% clear and colorless |
Chloride (Cl) | --- | 19.89-20.29% |
Ammonium(NH4) | --- | ≤ 0. 002% |
Sulfate | ≤ 0. 03 % | ≤ 0. 020% |
Iron | ≤ 0. 003 % | 10ppm |
Heavy Metals (as Pb), | ≤ 0.00 15% | ≤ 10ppm |
Arsenic (as As), | --- | ≤ 1ppm |
Other amino acids | --- | Not detected |
Organic volatile impurities | Meets the requirement | --- |
Loss on drying, | 8-12 % | 8.5-12 % |
Residue on ignition, | c | ≤ 0.1 0 % |
Assay | 98.5-101.5 % | 9 9.0-10 0.5 % |
pH value | --- | 1.5-2.0 |
Organic volatile impurities | Meets the requirement | --- |
Chromatographic purity | 0.5% max Individual impurity, 2% max total |