Description

n-Acetyl-L-Cysteine (NAC) is a modified amino acid derivative of L-cysteine, valued for its role as a precursor to the critical antioxidant glutathione. This compound is essential in pharmaceutical and nutraceutical formulations due to its mucolytic, antioxidant, and detoxification properties. It serves as a vital raw material for manufacturers in the pharmaceutical, dietary supplement, and research sectors, where consistent high purity and reliable supply are paramount.

Application

• Pharmaceutical Active Ingredient (API): Primarily used as a mucolytic agent in cough syrups and respiratory medications to break down mucus.
• Dietary Supplements & Nutraceuticals: Incorporated into capsules and tablets for its antioxidant support and role in liver detoxification pathways.
• Clinical Research & Cell Culture: Utilized as a source of L-cysteine and for its ability to reduce oxidative stress in biological studies.
• Antidote Formulations: Employed as an antidote for acetaminophen (paracetamol) overdose to prevent hepatotoxicity.
• Cosmetic & Personal Care: Used in skincare products for its antioxidant and potential skin-brightening properties.
• Food & Beverage Industry: Applied as a processing aid and antioxidant in certain food products.

Basic Information

Product Name	n-Acetyl-L-Cysteine
CAS No.	616-91-1
Molecular Formula	C5H9NO3S
Molecular Weight	163.19 g/mol
Synonyms	N-Acetylcysteine; NAC; Acetylcysteine; L-α-Acetamido-β-mercaptopropionic Acid; N-Acetyl-L-cysteine; Mercapturic Acid; (R)-2-Acetamido-3-sulfanylpropanoic Acid; Airbron; Fluimucil
EINECS	210-498-3

Quality Control

Our n-Acetyl-L-Cysteine is produced under strict quality management systems. It can be manufactured to meet various pharmacopoeial standards, including USP, EP, and JP monographs, as required. Every batch undergoes comprehensive analytical testing to ensure identity, purity, and safety. A Certificate of Analysis (COA) detailing all test results is provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and easily oxidized; therefore, containers must be kept tightly sealed after opening to minimize exposure to air and moisture.

Specification

Item	Specification
Appearance	White crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	98.0% - 101.0%
Specific Rotation	+21.0° to +27.0°
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.