Description

(αs,βs)-β-[(2-Aminophenyl)Thio]-α-Hydroxy-4-Methoxybenzenepropanoic Acid Methyl Ester is a sophisticated chiral intermediate of significant interest in advanced organic synthesis. This compound matters for its role as a key building block in the development of complex, biologically active molecules, particularly within pharmaceutical research. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and fine chemical industries for constructing novel therapeutic candidates and other high-value specialty chemicals.

Application

• Pharmaceutical Intermediate: A critical chiral synthon for the research and development of new active pharmaceutical ingredients (APIs), particularly those requiring complex stereochemistry.
• Agrochemical Synthesis: Used in the development of advanced pesticides and herbicides where specific stereoisomers are required for optimal biological activity.
• Asymmetric Catalysis Research: Serves as a substrate or ligand precursor in studies exploring new catalytic systems for stereoselective transformations.
• Fine Chemical Production: Employed in the multi-step synthesis of specialty chemicals, flavors, and fragrances that demand high purity and specific isomeric forms.
• Academic & Institutional Research: Utilized in university and government laboratories for methodological development in organic synthesis and medicinal chemistry projects.
• Process Chemistry Development: Acts as a model compound for scaling up and optimizing synthetic routes from laboratory to pilot plant scale.

Basic Information

Item	Detail
Product Name	(αs,βs)-β-[(2-Aminophenyl)Thio]-α-Hydroxy-4-Methoxybenzenepropanoic Acid Methyl Ester
CAS No.	99109-07-6
Molecular Formula	C17H19NO4S
Molecular Weight	333.40 g/mol
Synonyms	Methyl (αS,βS)-β-[(2-aminophenyl)thio]-α-hydroxy-4-methoxybenzenepropanoate; (S,S)-Methyl 3-((2-aminophenyl)thio)-2-hydroxy-3-(4-methoxyphenyl)propanoate; 99109-07-6; (αS,βS)-β-[(2-Aminophenyl)thio]-α-hydroxy-4-methoxybenzenepropanoic acid methyl ester; (S,S)-Aminophenylthio hydroxy methoxybenzene propanoate methyl ester; Methyl (S,S)-ATHPMP; Chiral β-amino acid thioether derivative
EINECS	Contact for details

Quality Control

Our (αs,βs)-β-[(2-Aminophenyl)Thio]-α-Hydroxy-4-Methoxybenzenepropanoic Acid Methyl Ester is produced under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity analysis by HPLC, to ensure consistent isomeric composition and high chemical purity suitable for research and development applications. Certificates of Analysis (COA) with detailed chromatographic data are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). The container should be kept in a well-ventilated area and protected from moisture. For long-term storage, consider inert gas purging.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Chiral Purity (Chiral HPLC)	≥ 98.0% de (diastereomeric excess)
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
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.