N-???-L(+)-??? ??

N-???-L(+)-??? MSDS

N-Acetyl-L-(+)-cysteine

N-???-L(+)-??? C??? ??, ??, ??

??

N-Acetyl-L-cysteine is an N-acetylated derivative of cysteine, which contains a sulfhydryl group in the molecule, which can break the disulfide bond (-S-S-) of the mucin peptide bond, so that the mucin chain becomes a small molecule peptide chain, reducing The viscosity of mucin, so It is a dissolving drug for mucus in mucus, purulent sputum and respiratory tract.

??? ??

N-Acetyl-L-cysteine is a white crystalline powder that has a garlic-like smell and sour taste. It is hygroscopic, and can dissolve in water or ethanol, but is insoluble in ether and chloroform. This substance is also acidic in aqueous solution, with a pH range of 2-2.75 for a concentration of 10g/L H2O.

??

An antioxidant mucolytic acetylated amino acid.
N-acetyl-l-cysteine (NAC) is a derivative of the dietary amino acid l-cysteine. NAC has a high affinity for lung tissue, which it supports through mucolytic and antioxidant action. NAC also enhances glutathione production and plays a role in heavy metal detoxification.

??

ChEBI: N-Acetyl-L-cysteine is an N-acetyl-L-amino acid that is the N-acetylated derivative of the natural amino acid L-cysteine. It is a pharma ceutical drug and nutritional supplement used primarily as a mucolytic agent and in the management of paracetamol (acetaminophen) overdose. Other uses include sulfate repletion in conditions, such as autism, where cysteine and related sulfur amino acids may be depleted.

benefits

n-acetyl-l-cysteine is a skin conditioner. It may also be used as an anti-aging ingredient given a demonstrated ability to regulate skin atrophy and reduce the appearance of fine lines and wrinkles.

?? ??

N-Acetyl-L-cysteine is the N-acetyl derivative of the amino acid Lcysteine, and is a precursor in the formation of the antioxidant glutathione in the body. The thiol (sulfhydryl) group confers antioxidant effects and is able to reduce free radicals. This compound is sold as a dietary supplement commonly claiming antioxidant and liver protecting effects. It is used as a cough medicine because it breaks disulfide bonds in mucus and liquefies it, making it easier to cough up. It is also this action of breaking disulfide bonds that makes it useful in thinning the abnormally thick mucus in cystic and pulmonary fibrosis patients. In India it is marketed by Intas under the trade name 'Efetil'.

Mechanism of action

N-Acetyl-L-cysteine is a kind of membrane penetrating antioxidant. It has anti-inflammatory activity through regulating the activation of NF-KB and HIF-1α; as well as modulation of ROS. It can penetrate across the membrane, replenishes intracellular and glutathione and GSH to help the cell fight against oxidative stress. In addition to its antioxidant action, NAC acts as a vasodilator by facilitating the production and action of nitric oxide. This property is an important mechanism of action in the prophylaxis of contrast-induced nephropathy and the potentiation of nitrate-induced vasodilation (Millea 2009).

???

At dosages of 1,200 mg twice daily or lower, N-acetylcysteine is well tolerated. At these dosages, side effects are unusual, but may include nausea, vomiting, diarrhea, transient skin rash, flushing, epigastric pain, and constipation.
www.aafp.org

Safety Profile

Poison by intraperitoneal route. Moderately toxic by other routes. Mutation data reported. When heated to decomposition it emits very toxic fumes of NO, and SOx,

Veterinary Drugs and Treatments

N-Acetyl-L-cysteine is a mucolytic agent that can be used to stop the melting effect of collagenases and proteases on the cornea. It is useful in halting melting through inhibition of metalloproteinases, but is not felt to be useful for melting caused by infectious agents.

?? ??

http://www.sigmaaldrich.com/catalog/product/sigma/a0737?lang=en&region=US
Grinberg, L, et al. "N-acetylcysteine amide, a novel cell-permeating thiol, restores cellular glutathione and protects human red blood cells from oxidative stress." Free Radical Biology & Medicine 38.1(2005):136-145.
Zhang, Xinsheng, et al. "N-Acetylcysteine Amide Protects Against Methamphetamine-Induced Oxidative Stress and Neurotoxicity in Immortalized Human Brain Endothelial Cells." Brain Research1275(2009):87-95.
Penugonda, S, et al. "Effects of N-acetylcysteine amide (NACA), a novel thiol antioxidant against glutamate-induced cytotoxicity in neuronal cell line PC12."Brain Research 1056.2(2005):132.
Lee, Kyung Sun, et al. "A novel thiol compound, N-acetylcysteine amide, attenuates allergic airway disease by regulating activation of NF-|[kappa]|B and hypoxia-inducible factor-1|[alpha]|." Experimental & Molecular Medicine 39.6(2007):756.

N-???-L(+)-??? ?? ?? ? ???

???

?? ??

N-???-L(+)-??? ?? ??

???	??	???	??	?? ?	??
DONBOO AMINO ACID COMPANY	+8613063595538	donboo@donboo.com	China	9363	58
Xi'an Kono chem co., Ltd.,	029-86107037 13289246953	info@konochemical.com	China	1169	58
BOC Sciences	16314854226; +16314854226	inquiry@bocsci.com	United States	19741	58
Wuhan Haorong Biotechnology Co.,ltd	+86-18565342920; +8618565342920	sales@chembj.net	China	289	58
Leading Chemical and Trading Co.,Ltd	+8615669938129	sales@leadingchemical.com	China	130	58
Shandong Hanjiang Chemical Co., Ltd	+86-0533-2066820 +8618369939125	hanson@sdhanjiang.com	China	998	58
Wuhan Fortuna Chemical Co., Ltd	+86-027-59207850	info@fortunachem.com	China	5975	58
Guangzhou Tosun Pharmaceutical Ltd	+86-020-61855200-902 +8618124244216	info@upharm.cn	China	831	58
Hebei Weibang Biotechnology Co., Ltd	+8615531157085	abby@weibangbio.com	China	8810	58
XI'AN TIANGUANGYUAN BIOTECH CO., LTD.	+86-029-86333380 18829239519	sales06@tgybio.com	China	901	58

N-???-L(+)-??? ?? ??: