CAS : 616-91-1
formula : C5H9NO3S
MW : 163.20
Melting Point : 109-111 ° C
Chinese name : N-acetyl-L-cysteine; N-acetyl-L-cysteine; acetyl-L-cysteine; N-acetyl-L-cysteine; N-acetyl-L-cysteine spicy
English name : N-acetyl-L-Cysteine; acetein; acetylcysteine; airbron; broncholysin; broncholysin [mucolytic]; fluimicil infantil; fluimucetin; inspir; l-alpha-acetamido-beta-mercaptopropionic acid; n-acetyl-l-cystein; mercapturic acid
nature Description : white crystalline powder. 109-111 ° C melting point. Soluble in water and ethanol. A similar smell of garlic, The findings, hygroscopicity.
production methods : L-cysteine hydrochloride (no crystal water), dissolved in 0.8% distilled water and heating at this time would be appropriate. Then there are increases in the activated carbon filter funnel and the filtrate to 3.6 times the volume of medicinal 95% ethanol, then industrial pyridine (0.8 times the size) in the first cooling ice water bath and then into the refrigerator overnight, the day after filtration, using chloroform (industrial) Washing , filter, pressure dry quickly Add vacuum dryer, drying at room temperature for 5 hours, in L-cysteine. The yield of 86.5%.
purposes : biochemical reagents, pharmaceuticals, materials for the expectorant drug, said net sputum easy, easy cough static. The viscosity of sputum have decomposition. The mechanism of the molecular structure of materials contained in the present phlegm Sulfhydryl make MUC1 peptide chain of disulfide fracture, mucin decomposition, the lower the viscosity of sputum, to make it easier for you to cough up liquefaction. In acute and chronic respiratory disease is not easy for you to cough up sputum smears, as well as a large number of present phlegm obstruction caused absorptivity difficult for the critical symptoms.
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