Description

D-Alanine, 3-(Methylsulfinyl)- (9Ci) is a specialized, non-proteinogenic amino acid derivative featuring a chiral D-configuration and a methylsulfinyl functional group. This compound is a valuable chiral building block and intermediate in advanced organic synthesis and pharmaceutical research. It is primarily utilized by research institutions and industrial R&D departments focused on developing novel bioactive molecules, including peptide mimetics and enzyme inhibitors.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the research and development of new active pharmaceutical ingredients (APIs), particularly for compounds targeting neurological or metabolic pathways.
• Peptidomimetics Research: Used to incorporate the sulfoxide moiety into peptide backbones, modifying their conformation, stability, and biological activity for drug discovery.
• Biochemical Probe Development: Acts as a precursor or standard in the study of enzyme mechanisms, particularly those involving sulfur metabolism or amino acid racemization.
• Asymmetric Synthesis: Employed as a chiral auxiliary or starting material in stereoselective organic reactions to construct complex molecules with high enantiomeric purity.
• 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	D-Alanine, 3-(Methylsulfinyl)- (9Ci)
CAS No.	23315-24-4
Molecular Formula	C4H9NO3S
Molecular Weight	151.18 g/mol
Synonyms	D-3-(Methylsulfinyl)alanine; (R)-2-Amino-3-(methylsulfinyl)propanoic acid; D-β-(Methylsulfinyl)alanine; (R)-3-(Methylsulfinyl)alanine; D-Methionine sulfoxide (Note: Refers to the D-isomer of the oxidized form); D-MSO; D-2-Amino-3-(methylsulfinyl)propionic acid
EINECS	Contact for details

Quality Control

Our D-Alanine, 3-(Methylsulfinyl)- (9Ci) is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing, including chiral purity verification by HPLC, to ensure it meets the high standards required for research and development applications. A detailed Certificate of Analysis (COA) providing batch-specific data for identity, purity, and chiral excess 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). This compound is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent moisture uptake.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Chiral Purity (HPLC)	≥ 99.0% de (D-isomer)
Loss on Drying	≤ 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.