Description

S-(2,4-Dimethylbenzene)-D,L-Cysteine is a specialized cysteine derivative where the thiol group is protected by a 2,4-dimethylbenzene moiety. This compound is significant for its role as a key chiral building block and protective group intermediate in advanced organic synthesis and pharmaceutical research. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for the synthesis of complex molecules, including potential active pharmaceutical ingredients (APIs) and ligands.

Application

• Pharmaceutical Intermediate: Serves as a crucial chiral synthon in the asymmetric synthesis of novel drug candidates and bioactive molecules.
• Peptide Chemistry: Used as a protected cysteine derivative in solid-phase and solution-phase peptide synthesis to prevent unwanted disulfide bond formation.
• Ligand Synthesis: Acts as a precursor for the development of chiral ligands used in asymmetric catalysis and metal complexation.
• Bioconjugation: Employed in the modification of proteins and other biomolecules where a protected thiol group is required for selective deprotection and reaction.
• Research & Development: A valuable tool compound in academic and industrial research for studying sulfur chemistry and developing new synthetic methodologies.
• Agrochemical Synthesis: Used in the research and development of new crop protection agents and pesticides.

Basic Information

Product Name	S-(2,4-Dimethylbenzene)-D,L-Cysteine
CAS No.	1357350-92-5
Molecular Formula	C11H15NO2S
Molecular Weight	225.31 g/mol
Synonyms	S-(2,4-Dimethylphenyl)-D,L-cysteine; D,L-Cysteine S-(2,4-dimethylphenyl) ether; 2-Amino-3-[(2,4-dimethylphenyl)thio]propanoic acid; S-(2,4-Xylyl)-D,L-cysteine; (RS)-2-Amino-3-(2,4-dimethylphenylsulfanyl)propanoic acid; Cysteine, S-(2,4-dimethylphenyl)-, DL-; DL-Cysteine S-(2,4-dimethylphenyl) thioether
EINECS	Contact for details

Quality Control

Our S-(2,4-Dimethylbenzene)-D,L-Cysteine is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and chiral analysis, to ensure it meets the high standards required for research and synthesis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed in a dry environment to prevent moisture absorption. For long-term storage, consider using a desiccant.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Chiral Purity	D,L-mixture (racemic)
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%

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