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L-Cysteine Hydrochloride Anhydrous CSA 52-89-1
Cysteine is a sulfur-containing amino acid found in foods like poultry, eggs, dairy, red peppers, garlic and onions. It works as an antioxidant, in the production of collagen (a component of hair, skin and nails) and is also used in the body to create glutathione, another important antioxidant.
L-Cysteine is a non-essential standard amino acid that can be synthesized by the human body under normal physiological conditions if a sufficient quantity of methionine is available.
L-Cysteine is commonly used as a precursor in the food and pharmaceutical industries.
In the cosmetics industry, it can be used for hair perming formulations.
| Chemical Name： |
H-Cys-OH.HCl |
|
Structure Formula： |
|
|
Molecular Formula： |
C3H7NO2S.HCl.H2O |
|
Molecular Weight： |
175.63 |
|
Cas No： |
52-89-1 |
|
Characteristics： |
White crystalline powder; tasteless, easily soluble in water but insoluble in alcohol and ether |
|
Quality Standards： |
AJI97 |
|
Item |
Specifications (AJI97 ) |
|
Appearance |
White crystalline powder |
| Assay, % | 98.0~102.0 |
|
Specific rotation |
+5.6°~+8.9° |
|
Loss on drying, % |
≤1.0 |
|
Transmittance, % |
≥98.0 |
|
Sulfate (as SO4), % |
≤0.02 |
|
Ammonium as (as NH4), % |
≤0.02 |
|
Iron (as Fe), % |
≤0.001 |
|
Heavy Metals (as Pb), % |
≤0.001 |
|
Arsenic (as As), % |
≤0.0001 |
|
pH Value |
0.5~2.0 |
|
Residue on ignition, % |
≤0.1 |
|
Other amino acid |
No detd |
|
The Characteristics and Uses： |
L-Cysteine hydrochlorde anhydrous is one of the important products the amino acid series. It is widely used in medical, chemical and food industries. |
|
Package and Transport： |
This product is contained in a double-layer package, the inner layer being a sealed nonpoisonous polyethylene bag or alumin, and the outer layer being a paper board barrel. Each barrel contains a net weight of 25kg. Packages may be arranged in accordance with customer’s requirements.
Handle with care. Protect the product from sunshine or rain. Do not transport them together with poisonous or harmful goods. This product belongs to the non-dangerous category and can be transported as a general chemical product. |
|
Storage： |
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. |
| L-Arginine base | |
| L-Arginine HCL | L-Norvaline |
| L-Alanine | L-Ornithine HCL |
| L-Aspartic acid | L-Phenylalanine |
| L-Asparagine Mono | L-Proline |
| L-Citrulline | L-Threonine |
| L-Cysteine HCL Anhydrous | L-Tyrosine |
| L-Cysteine HCL Monohydrate | L-TryptoPhan |
| L-Cystine base | L-Valine |
| L-Glutamic acid | D-Proline |
| L-Glutamine | DL-Methionine |
| L-Isoleucine | N-Acetyl-DL-Leucine |
| L-Leucine | N-Acetyl-DL-Methionine |
| L-Hydroxyproline | N-Acetyl-L-Cysteine |
| L-Histidine base | N-Acetyl-L-Tyrosine |
| L-Histidine HCL | N-Acetyl-L-Glutamine |
| L-Lysine HCL | N-Acetyl-L-Methionine |
| L-Malic acid | S-Carboxymethyl-L-Cysteine |
| L-Methionine | Taurine |
