Description

1,3-Benzenedicarboxylic Acid, 5-Mercapto- is a specialized aromatic dicarboxylic acid derivative featuring a reactive thiol (mercapto) group. This unique bifunctional structure makes it a valuable intermediate for synthesizing advanced polymers, metal-organic frameworks (MOFs), and high-performance ligands. It is primarily sought by research and development teams in the pharmaceutical, agrochemical, and advanced materials sectors for creating novel compounds with tailored properties.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing active pharmaceutical ingredients (APIs) and drug candidates, particularly those requiring thiol or disulfide linkages.
• Polymer Modification: Used as a monomer or cross-linking agent to introduce sulfur-containing functional groups into polyesters, polyamides, and other specialty polymers, enhancing properties like adhesion or metal chelation.
• Ligand Synthesis: Serves as a precursor for creating chelating ligands used in catalysis, metal extraction, and diagnostic imaging agents.
• Metal-Organic Frameworks (MOFs): Employed as an organic linker in the construction of novel MOFs for gas storage, separation, and catalysis applications.
• Agrochemical Synthesis: Intermediate in the production of herbicides, fungicides, and other crop protection agents.
• Surface Functionalization: Used to modify material surfaces (e.g., gold nanoparticles, polymers) via the reactive thiol group for sensor development or biocompatible coatings.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, 5-Mercapto-
CAS No.	148065-79-6
Molecular Formula	C8H6O4S
Molecular Weight	198.20 g/mol
Synonyms	5-Mercaptoisophthalic Acid; 5-Sulfanylisophthalic Acid; 5-Thiolisophthalic Acid; 1,3-Benzenedicarboxylic acid, 5-mercapto-; Isophthalic acid, 5-mercapto-; 5-Mercapto-1,3-benzenedicarboxylic acid
EINECS	Contact for details

Quality Control

Our 1,3-Benzenedicarboxylic Acid, 5-Mercapto- is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide detailed Certificates of Analysis (COA) that include data from HPLC, NMR, and titration methods, confirming compliance with agreed specifications for research and industrial use.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store the product under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. Keep away from strong oxidizing agents.

Specification

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