N-乙酰-L-半胱氨酸

价格	询价
包装	25KG/包

最小起订量	25KG
发货地	河北
更新日期	2023-02-24

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产品详情

中文名称:N-乙酰-L-半胱氨酸	英文名称:N-Acetyl-L-cysteine
CAS:616-91-1	保存条件: 2-8°C
纯度规格: 99%min	产品类别: 医药中间体

N-Acetyl-L-cysteine Chemical Properties

Melting point	106-108 °C(lit.)
alpha	-35.1 ºC (c=2,H2O)
Boiling point	407.7±40.0 °C(Predicted)
density	1.249 (estimate)
refractive index	24 ° (C=JPC Method)
storage temp.	2-8°C
solubility	H₂O: 100 mg/mL with heating
pka	pK1: 9.52 (30°C)
form	Solid
color	White
Water Solubility	Soluble in water, ethanol, methanol, dimethyl sulfoxide, hot isopropyl alcohol, methyl acetate and ethyl acetate. Insoluble in chloroform and ether.
Merck	14,88
BRN	1724426
Stability:	Stable. Incompatible with strong oxidizing agents.
InChIKey	PWKSKIMOESPYIA-BYPYZUCNSA-N
CAS DataBase Reference	616-91-1(CAS DataBase Reference)
NIST Chemistry Reference	Acetylcysteine(616-91-1)
EPA Substance Registry System	L-Cysteine, N-acetyl- (616-91-1)

Description	N-acetylcysteine amide is a kind of membrane penetrating antioxidant. It has anti-inflammatory activity through regulating the activation of NF-κB 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. For these reasons, it has the potential for the treatment of neurodegeneration (such as Parkinson’s disease), radiation exposure and other disorders caused by oxidation. Moreover, it can also attenuate the allergic airway diseases.
Chemical Properties	White or almost white, crystalline powder or colourless crystals
Chemical Properties	Acetylcysteine also known as N-acetylcysteine or N-acetyl-Lcysteine (abbreviated NAC), 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. Acetylcysteine is a derivative of cysteine; an acetyl group is attached to the nitrogen atom. 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'.
Chemical Properties	Acetylcysteine 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.
Originator	Mucomyst ,Mead Johnson,US
Uses	Paracetamol overdose Intravenous acetylcysteine is indicated for the treatment of paracetamol (acetaminophen) overdose. When paracetamol is taken in large quantities, a minor metabolite called N-acetyl-p-benzoquinone imine (NAPQI) accumulates within the body. It is normally conjugated by glutathione, but when taken in excess, the body's glutathione reserves are not sufficient to inactivate the toxic NAPQI. This metabolite is then free to react with key hepatic enzymes, therefore damaging hepatocytes. This may lead to severe liver damage and even death by fulminant liver failure. For this indication, acetylcysteine acts to augment the glutathione reserves in the body and, together with glutathione, directly bind to toxic metabolites. These actions serve to protect hepatocytes in the liver from NAPQI toxicity. Mucolytic therapy ?Inhaled acetylcysteine is indicated for mucolytic (""mucusdissolving"") therapy as an adjuvant in respiratory conditions with excessive and / or thick mucus production. Such conditions include emphysema, bronchitis, tuberculosis, bronchiectasis, amyloidosis, pneumonia, cystic fibrosis, chronic obstructive pulmonary disease, and pulmonary fibrosis. It is also used post-operatively, as a diagnostic aid, and in tracheotomy care. It may be considered ineffective in cystic fibrosis.For this indication, acetylcysteine acts to reduce mucus viscosity by splitting disulfide bonds linking proteins present in the mucus (mucoproteins). Nephroprotective agent Oral acetylcysteine is used for the prevention of radiocontrastinduced nephropathy (a form of acute renal failure). Some studies show that prior administration of acetylcysteine markedly decreases radiocontrast nephropathy, whereas others appear to cast doubt on its efficacy. Treatment of cyclo phosphamide - induced hemorrhagic cystitis Acetylcysteine has been used for cyclophosphamide-induced hemorrhagic cystitis, although mesna is generally preferred due to the ability of acetylcysteine to diminish the effectiveness of cyclophosphamide. Microbiological use Acetylcysteine can be used in Petroff's method i.e. liquefaction and decontamination of sputum, in preparation for diagnosis of tuberculosis. Interstitial lung disease Acetylcysteine is used in the treatment of interstitial lung disease to prevent disease progression. Psychiatry Acetylcysteine has been shown to reduce the symptoms of both schizophrenia and bipolar disorder in two placebo controlled trials conducted at Melbourne University. It is thought to act via modulation of NMDA glutamate receptors or by increasing glutathione. Poly cystic ovary syndrome In a small prospective trial comparing acetylcysteine to metformin (which is the standard drug treatment for PCOS), both treatments resulted in a significant decrease in body mass index, hirsutism score, fasting insulin, HOMA index, free testosterone and menstrual irregularity compared with baseline values, and both treatments had equal efficacy.

Api Mianserin hydrochloride Mianserin hcl CAS 21535-47-7

About us:

Hebei Lingding Biotechnology Co., Ltd. is a professional business company ,that include pharmaceutical raw materials, pharmaceutical intermediates,and other more than 1000 products of the enterprise, The registered capital is 3 million yuan, it is a collection of scientific research, production and sales in one of the enterprises.

Since its establishment, the company has always adhered to the core concept of "focus on products, attentive service", adhere to the business purpose of "innovation, professional, win-win", to provide customers with a full range of meticulous and thoughtful services. We will adhere to the customer's serious and responsible attitude, comply with the standardized operation procedures, with efficient execution to complete customer needs.

The company's products are sold all over the world, mainly exported to the United States, Europe, Southeast Asia, Australia, the Middle East and South Africa and other countries.The company has a strong scientific research and technical team, can provide customers with high quality products and a full range of services. We will provide first-class products and better service to face the needs of customers, to meet the challenges of the market. Welcome domestic and foreign customers to negotiate.

Api Mianserin hydrochloride Mianserin hcl CAS 21535-47-7

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公司简介

Hebei Lingding Biotechnology Co., Ltd. is a professional business company ，that include pharmaceutical raw materials, pharmaceutical intermediates,and other more than 1000 products of the enterprise, The registered capital is 3 million yuan, it is a collection of scientific research, production and sales in one of the enterprises. Since its establishment, the company has always adhered to the core concept of "focus on products, attentive service", adhere to the business purpose of "innovation, professional, win-win", to provide customers with a full range of meticulous and thoughtful service

关键字： 616-91-1;N-Acetyl-L-cysteine;N-乙酰-L-半胱氨酸;high quality;cheap price;

公司简介

成立日期	2021-02-24 （5年）	注册资本	300万人民币
员工人数	1-10人	年营业额	￥ 100万-300万
主营行业	医药中间体	经营模式	贸易

河北凌顶生物科技有限公司

普通会员

公司成立：5年
注册资本：300万人民币
企业类型：贸易
主营产品：pharmaceutical raw materials
公司地址：桥西区中山西路121号未来时间商务大厦1810

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