Carboxymethylcysteine is white crystals or crystalline powder,slightly acid tast,soluble in water,practically insoluble in ethanol and in glacial acetic acid and in ether,dissolve in dilute hydrochloric acid and in sodium hydroxide T.S ,it treatment of reducing the concentration of mucus glycoprotein and facilitates expectoration,cure of chronice tracheitis,emphysema,and pulmonary,etc.
1.Resist acne
2.Curing of chronic tracheitis , emphysema, and pulmonary
3.Hair finishing agent and adjusting agent.
4.As a Pharmaceutical raw material
| Item | Specification | Result |
| Characters | A white or almost white, crystalline powder, practically insoluble in water and in alcohol, it’s soluble in dilute mineral acids and in dilute solutions of alkali hydroxides | Conforms |
| Identification | 1) A,B | Conforms |
| 2) A,C,D | ||
| Specific rotation [α]D20 | -32.5°~ -35.5° | -35.0° |
| Appearance of solution | Clear and colorless | Clear and colorless |
| Chloride | ≤0.15% | <0.04% |
| Sulfate | ≤300ppm | <300ppm |
| Heavy metals (as Pb) | ≤10ppm | <5ppm |
| Ninhydrin-positive substances | ≤0.5% | <0.5% |
| Loss on drying | ≤0.5% | 0.2% |
| Sulphated ash | ≤0.3% | 0.05% |
| Particle size | 90% passes through 100 mesh | conforms |
| Assay | 98.5~101.0% | 99.70% |
| pH | 2.8~3.0 | 2.8 |
There are several Related Products available. Here are a few of the most common types:
L-Cysteine HCL Monohydrate : This product is antioxidant,,anti inflammation,and radiopharmaceuticals,treat toxic hepatitis,thrombocytopenia and skin ulcer,prevent hepatic necrosis,also treat tracheitis and reduce phlegm,etc.
L-Cystine : This product promote the oxidation and the proliferation of white blood cells,make the liver function vigorous,treat dysentery,typhoid fever,influenza,asthma neuralgia and various toxic diseases,etc
N-Acetyl-L-Cysteine : This product is antioxidants,antidote,and anti-inflammation,cure chronic bronchitis and dissolve white viscous sputum,remove cough,protect liver,etc.
Taurine : This product is anti inflammation and antioxidant,enhance immunization function,treatment of rheumatoid arthritis,bronchitis,protect liver,relief heat from the body,etc.
