CAS 616-91-1 N-Acetyl-L-Cysteine Acetylcysteine

• Powder: Yes
• Customized: Customized
• Certification: GMP, HSE, ISO 9001, USP, BP
• Suitable for: Elderly, Children, Adult
• State: Powder
• Purity: >99%
• Model NO.: N-Acetyl-L-Cysteine
• Mf: C5h9no3s
• MW: 163.191
• Einecs: 210-498-3
• Test Method: HPLC
• Storage: Cool Dry Place
• Shelf Life: 24 Months
• Transport Package: 1kg/Bag, 25kg/Drum
• Specification: N-Acetyl-L-Cysteine
• Trademark: HNB
• Origin: China
• Production Capacity: 5000kg/Month

Product Description

Name	N-Acetyl-L-cysteine
CAS No.	616-91-1
Molecular Formula	C5H9NO3S
Molecular Weight	163.191
EINECS	210-498-3
Characteristics	White crystals or crystalline powder. Freely soluble in water, soluble in ehanol, Practically insoluble ether

N-Acetyl-L-cysteine is an acetylated amino acid with antioxidant and mucolytic properties. These two activities have made N-Acetyl-L-cysteine particularly relevant in cystic fibrosis studies, where the antioxidant/reducing character of the compound is described to ameliorate the characteristic systemic redox imbalance state of cystic fibrosis and the mucolytic properties of the compound are shown to impede upon the congestion and inflammation correlated to this redox state. As a mucolytic, N-Acetyl-L-cysteine serves to dissipate disulfide bonds across mucoproteins, loosening and clearing the viscosity of sputum. N-Acetyl-L-cysteine shows complimentary action to glutathione, both demonstrating antioxidant activity through their thiol functionality, and both are shown to protect against peroxidative stress related to septic shock. N-Acetyl-L-cysteine has also been shown to induce apoptosis in vascular smooth muscle cells, indicating that these cells respond differently to changes in reduction-oxidation state than other tissues that are normally protected by the presence of antioxidants. This observation in vascular smooth muscle cells indicates N-Acetyl-L-cysteine as an interventional tool upon arteriosclerotic proliferation of these cells.

Item	Standard		Test Results
Identification	A.H-NMR:Comply with the structure		Complies
	B.LC-MS:Comply with the structure		Complies
	C.The IR spectrum of sample should be identical with that of reference standard;		Complies
	D.HPLC-ESI-MS The retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay.		Complies
Crystallinity	meets the requirements.		Complies
Loss on drying	≤2.0%		0.19%
Heavy metals	≤10 ppm		<10ppm
Water	≤1.0%		0.1%
Sulphated ash	≤0.5%, determined on 1.0 g.		0.009%
Related substances	Unspecified impurities: for each impurity	≤0.10%	<0.10%
	Total Impurity	≤0.5%	0.18%
Purity	≥99.0%		99.7%
Assay	99.0%~101.0% (anhydrous substance).		99.8%
Microbiological Analysis
Total plate count	≤1000cfu/g		Complies
Yeast and Moulds	≤100cfu/g		Complies
E. Coli.	Absent		Negative
Salmonella	Absent		Negative
S.aureus	Absent		Negative
Storage	Preserve in well-closed, light-resistant and airtight containers.		Complies