Description

α-Mercapto-4-Methoxybenzeneacrylic Acid is a specialized organic compound featuring both a thiol (mercapto) and a carboxylic acid functional group on a methoxy-substituted benzene ring. This unique structure makes it a valuable building block and intermediate for synthesizing more complex molecules, particularly in fine chemical and pharmaceutical research. It is primarily sought by R&D chemists and process developers in the pharmaceutical, agrochemical, and advanced material sectors for creating novel compounds with targeted properties.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of active pharmaceutical ingredients (APIs), especially those requiring a thiol or disulfide linkage.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and plant growth regulators.
• Ligand and Catalyst Development: The thiol and carboxylic acid groups make it a useful starting material for creating chelating ligands and organocatalysts.
• Polymer Modification: Acts as a functional monomer or cross-linking agent for specialty polymers, imparting specific reactivity or adhesion properties.
• Fine Chemical Production: Employed in the multistep synthesis of dyes, pigments, and other high-value specialty chemicals.
• Bioconjugation Chemistry: Useful in research for modifying peptides, proteins, or other biomolecules via thiol-reactive chemistry.

Basic Information

Product Name	α-Mercapto-4-Methoxybenzeneacrylic Acid
CAS No.	5740-35-2
Molecular Formula	C10H10O3S
Molecular Weight	210.25 g/mol
Synonyms	2-Mercapto-3-(4-methoxyphenyl)acrylic Acid; 3-(4-Methoxyphenyl)-2-sulfanylacrylic Acid; 4-Methoxy-α-mercaptocinnamic Acid; (2E)-3-(4-Methoxyphenyl)-2-sulfanylprop-2-enoic Acid; α-Mercapto-p-methoxycinnamic Acid; 2-Thiol-3-(4-methoxyphenyl)propenoic Acid
EINECS	Contact for details

Quality Control

Our α-Mercapto-4-Methoxybenzeneacrylic Acid is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specifications such as assay (by HPLC), related substances, and physical characteristics are provided and available upon request. We adhere to relevant industry standards for fine chemical intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This compound is easily oxidized; for long-term storage, consider under an inert atmosphere such as nitrogen. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%

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