Description

L-Alanine, 3-[(S)-Methylsulfinyl]- (9Ci) is a specialized, non-proteinogenic amino acid derivative featuring a chiral methylsulfinyl group. This compound is of significant interest in advanced pharmaceutical research and development, particularly for its role as a key chiral building block and intermediate. It is primarily utilized by research institutions and manufacturers in the pharmaceutical and biotechnology sectors for the synthesis of novel drug candidates and bioactive molecules. The precise stereochemistry and functional group make it a valuable reagent for probing biological mechanisms and creating targeted therapies.

Application

• Pharmaceutical Intermediate: A critical chiral synthon in the research and synthesis of novel active pharmaceutical ingredients (APIs), especially for drugs targeting neurological and metabolic pathways.
• Biochemical Research: Used as a substrate or inhibitor in enzymatic studies to investigate sulfur-containing amino acid metabolism and related biochemical processes.
• Peptide Synthesis: Serves as a modified amino acid residue for the incorporation of sulfoxide functionalities into synthetic peptides, altering their stability, conformation, and biological activity.
• Ligand and Catalyst Development: Employed in the development of chiral ligands and organocatalysts for asymmetric synthesis, leveraging its sulfinyl group for stereocontrol.
• Reference Standard: Used as a high-purity analytical standard in quality control laboratories for method development and validation in pharmaceutical analysis.

Basic Information

Product Name	L-Alanine, 3-[(S)-Methylsulfinyl]- (9Ci)
CAS No.	32726-14-0
Molecular Formula	C4H9NO3S
Molecular Weight	151.18 g/mol
Synonyms	(S)-2-Amino-3-(methylsulfinyl)propanoic acid; L-2-Amino-3-(methylsulfinyl)propionic acid; (S)-3-(Methylsulfinyl)alanine; L-Methionine S-oxide; L-Methionine sulfoxide; L-MSO; (S)-3-(Methylsulfinyl)-L-alanine
EINECS	Contact for details

Quality Control

Our L-Alanine, 3-[(S)-Methylsulfinyl]- (9Ci) is produced under strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide full traceability and Certificates of Analysis (COA) are available for every shipment, detailing key parameters such as assay, chiral purity, and impurity profiles. Our quality commitment aligns with the standards expected for research and pharmaceutical-grade intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed in a dry environment to prevent absorption of moisture. For long-term storage, consider using desiccants.

Specification

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

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