Acetylcysteine NAC CAS 616-91-1 USP Mucolytic API Raw Material

Human APIs

Acetylcysteine (NAC)

Pharmaceutical and food-grade N-Acetyl-L-Cysteine. ComWin provides high-purity NAC suitable for mucolytic drug formulations and dietary antioxidant supplements.

Model: CAS NO.: 616-91-1

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Description

Acetylcysteine is the N-acetyl derivative of the amino acid L-cysteine. It possesses free sulfhydryl groups that break disulfide bonds in mucoproteins. It is also a precursor to glutathione, making it valuable for nutritional applications.

Chemical Name	Acetylcysteine
CAS Number	616-91-1
Molecular Formula	C5H9NO3S
Molecular Weight	163.19
Molecular Structure
Packing	As Requested
Shelf-life	Two years
Storage Condition	Room Temperature
Application	Antidote for acetaminophen overdose, Mucolytic for COPD/asthma, Kidney protection, Psychiatric disorders adjunct

Specification

Items	Specifications
Appearance	White, crystalline powder, having a slight acetic odor. Freely soluble in water and in alcohol; practically insoluble in chloroform and in ether.
Identification	The IR spectrum obtained with the substance to be examined conforms to that obtained with reference standard.
Residue on ignition	≤ 0.5%
Specific optical rotation	+21° ~ +27°
PH	2.0 ~ 2.8
Loss on drying	≤ 1.0%
Enantiomers	≤ 0.1%
Residual Solvents	Acetic acid ≤ 0.5%
Microbiological Tests	Total aerobic microbial count ≤ 10⁶ cfu/g
Microbiological Tests	Total yeasts and moulds count ≤ 10³ cfu/g
Assay	98.0%~102.0% (C₅H₉NO₃S, calculated on the dried basis)
Standard	USP Standard

* The above information is believed to be correct but does not purport to be all inclusive and shall be used only as a guide. The users are suggested to select the suitability of the products and methods of application.