Description

Cysteine, S,2-Dimethyl- (9Ci) CAS NO 33099-14-8 is a modified cysteine derivative, a key building block in advanced organic synthesis and pharmaceutical research. This compound is valued for its role in introducing specific steric and electronic properties into target molecules, enabling the development of novel compounds with tailored functionalities. It is primarily sought by researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for applications in drug discovery, peptide modification, and catalyst development.

Application

• Pharmaceutical Intermediate: A key chiral synthon in the research and development of new active pharmaceutical ingredients (APIs), particularly for drugs targeting neurological and metabolic pathways.
• Peptide Chemistry: Used for the site-specific modification of peptides and proteins to study structure-activity relationships or to enhance stability and bioavailability.
• Agrochemical Synthesis: Serves as a precursor in the synthesis of novel herbicides, fungicides, and plant growth regulators that require specific chiral centers.
• Catalyst Ligand Development: Employed in the design and synthesis of novel chiral ligands for asymmetric catalysis, crucial for producing enantiomerically pure compounds.
• Biochemical Research: Utilized as a tool compound in biochemical assays and studies of enzyme mechanisms involving cysteine residues.
• Material Science: Acts as a functional monomer or cross-linking agent in the development of advanced polymers and smart materials.

Basic Information

Product Name	Cysteine, S,2-Dimethyl- (9Ci)
CAS No.	33099-14-8
Molecular Formula	C5H11NO2S
Molecular Weight	149.21 g/mol
Synonyms	S,2-Dimethylcysteine; (2R)-2-Amino-3-[(methylsulfanyl)methyl]butanoic acid; 3-[(Methylthio)methyl]-D-valine; D-3-[(Methylthio)methyl]valine; (R)-2-Amino-3-((methylthio)methyl)butanoic acid; 2-Amino-3-[(methylthio)methyl]butyric acid; A derivative of D-penicillamine
EINECS	Contact for details

Quality Control

Our Cysteine, S,2-Dimethyl- (9Ci) is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chiral purity verification and impurity profiling, to ensure it meets the high standards required for research and synthesis. Certificates of Analysis (COA) detailing identity, purity, and specific test results are available for every shipment upon request, providing full traceability and quality assurance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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