Description

n-Acetyl-L-Cysteine Ethyl Ester is a chemically modified derivative of the amino acid L-Cysteine, designed for enhanced stability and bioavailability. This compound is a critical intermediate and active ingredient valued for its role in synthesizing more complex molecules and for its direct biochemical applications. It is primarily sought by manufacturers and research institutions in the pharmaceutical, nutraceutical, and cosmetic industries for product development and advanced research.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of more complex active pharmaceutical ingredients (APIs) and prodrugs.
• Antioxidant Research: Used in biochemical and cellular studies to investigate mechanisms of oxidative stress and cellular protection.
• Nutraceutical Formulations: Incorporated into dietary supplements designed to support glutathione synthesis and liver health.
• Cosmetic Actives: Serves as a precursor in anti-aging and skin-brightening skincare products for its potential role in melanin regulation.
• Biochemical Reagent: Employed in laboratory settings as a reagent for studying enzyme activity and thiol-disulfide exchange reactions.
• Precursor for Peptide Synthesis: Utilized in peptide chemistry due to its protected thiol and amine functionalities.

Basic Information

Product Name	n-Acetyl-L-Cysteine Ethyl Ester
CAS No.	59587-09-6
Molecular Formula	C7H13NO3S
Molecular Weight	191.25 g/mol
Synonyms	N-Acetyl-L-cysteine ethyl ester; N-Acetylcysteine ethyl ester; NAC ethyl ester; L-Cysteine, N-acetyl-, ethyl ester; Ethyl N-acetyl-L-cysteinate; N-Acetyl-S-ethyl-L-cysteine (Note: This is a different isomer); Acetylcysteine ethyl ester; 2-Acetamido-3-sulfanylpropanoic acid ethyl ester
EINECS	Contact for details

Quality Control

Our n-Acetyl-L-Cysteine Ethyl Ester is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets stringent specifications for research and industrial use. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed in a dry environment to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Optical Rotation [α]20/D	-30.0° to -35.0° (c=1 in methanol)
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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