Description

5-Mercapto-2-Methoxy-4-Methylbenzoic Acid CAS NO 439579-12-1 is a specialized aromatic compound featuring both a carboxylic acid and a thiol (mercapto) functional group. This unique structure makes it a valuable building block and intermediate in advanced organic synthesis, particularly for constructing complex molecules. It is primarily sought by pharmaceutical research and fine chemical industries for the development of new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, especially those targeting specific enzyme pathways.
• Ligand Synthesis: Used in the preparation of specialized ligands for catalysis and metal-organic frameworks (MOFs).
• Polymer Modification: Serves as a functional monomer or cross-linking agent to introduce thiol groups into polymer chains, altering material properties.
• Agrochemical Research: Intermediate in the development of new herbicides, fungicides, or plant growth regulators.
• Material Science: Precursor for creating self-assembled monolayers (SAMs) or surface modifiers on metals and other substrates.
• Chemical Biology: Useful for bioconjugation strategies or as a probe in studying protein interactions due to its reactive thiol group.

Basic Information

Product Name	5-Mercapto-2-Methoxy-4-Methylbenzoic Acid
CAS No.	439579-12-1
Molecular Formula	C9H10O3S
Molecular Weight	198.24 g/mol
Synonyms	4-Methyl-2-methoxy-5-mercaptobenzoic Acid; 2-Methoxy-4-methyl-5-mercaptobenzoic Acid; Benzoic acid, 5-mercapto-2-methoxy-4-methyl-; 5-Mercapto-2-methoxy-p-toluic Acid
EINECS	Contact for details

Quality Control

Our 5-Mercapto-2-Methoxy-4-Methylbenzoic Acid is produced under strict quality management systems. Every batch undergoes rigorous analytical testing to ensure high purity and consistent performance. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided to guarantee compliance with your research and development specifications.

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). Due to its sensitivity, the material should be stored under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Purity (HPLC)	≥ 97.0%
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.