Description

S-(n-Methylcarbamate) Cysteine Ethyl Ester is a specialized cysteine derivative where the thiol group is protected by an N-methylcarbamate moiety. This compound is a crucial protected intermediate in the synthesis of complex peptides and bioactive molecules, offering enhanced stability and controlled reactivity. It is primarily utilized by researchers and manufacturers in the pharmaceutical, agrochemical, and fine chemical industries for developing novel therapeutic agents and advanced materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of cysteine-containing peptides and peptidomimetics with potential therapeutic applications.
• Agrochemical Research: Used in the development of novel pesticides and herbicides where the protected thiol group is essential for bioactivity.
• Proteomics & Biochemistry: Serves as a reagent for studying enzyme mechanisms and protein modifications involving cysteine residues.
• Fine Chemical Synthesis: An important precursor for creating chiral ligands, catalysts, and other specialty chemicals.
• Material Science: Potential use in the development of functional polymers and smart materials via thiol-ene click chemistry after deprotection.

Basic Information

Product Name	S-(n-Methylcarbamate) Cysteine Ethyl Ester
CAS No.	91868-78-9
Molecular Formula	C7H14N2O4S
Molecular Weight	222.26 g/mol
Synonyms	S-(N-Methylcarbamoyl)-L-cysteine ethyl ester; L-Cysteine, S-[(methylamino)carbonyl]-, ethyl ester; Ethyl S-(N-methylcarbamoyl)cysteinate; Cysteine ethyl ester N-methylcarbamate; S-Carbamoylmethylcysteine ethyl ester; S-Methylcarbamoyl cysteine ethyl ester; N-Carbamoylmethylcysteine ethyl ester
EINECS	Contact for details

Quality Control

Our S-(n-Methylcarbamate) Cysteine Ethyl Ester is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity, chiral analysis, and identity confirmation via IR and NMR spectroscopy. Certificates of Analysis (COA) detailing all specifications are provided to ensure traceability and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at 2-8°C. This product is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions to maintain stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Optical Rotation	Specific range available on COA
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 10 ppm

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