Description

4-(Mercaptomethyl)Benzoic Acid is a versatile aromatic compound featuring both a carboxylic acid and a thiol functional group, making it a valuable bifunctional building block in organic synthesis. Its unique structure allows it to act as a key intermediate for creating complex molecules with tailored properties. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries seeking to develop new active ingredients or advanced materials.

Application

• Pharmaceutical Intermediate: Serves as a crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for drugs targeting specific receptors or requiring thioether linkages.
• Agrochemical Synthesis: Used in the production of novel herbicides, fungicides, and plant growth regulators, where the benzoic acid moiety can enhance systemic activity.
• Polymer Modification & Cross-linking Agent: The thiol group enables thiol-ene "click" chemistry for modifying polymer backbones, creating hydrogels, or acting as a chain transfer agent in controlled radical polymerizations.
• Ligand & Chelating Agent Precursor: Utilized to synthesize specialized ligands for catalysis or metal chelation in industrial and analytical chemistry applications.
• Peptide Mimetics & Bioconjugation: Acts as a building block for creating non-natural amino acids or as a linker for attaching payloads to proteins and antibodies in bioconjugation strategies.
• Material Science Research: Employed in the development of self-assembled monolayers (SAMs) on gold surfaces and other advanced functional materials.

Basic Information

Product Name	4-(Mercaptomethyl)Benzoic Acid
CAS No.	39088-65-8
Molecular Formula	C8H8O2S
Molecular Weight	168.21 g/mol
Synonyms	4-(Mercaptomethyl)benzoic acid; p-(Mercaptomethyl)benzoic Acid; 4-Carboxybenzyl mercaptan; Benzoic acid, 4-(mercaptomethyl)-; (4-Carboxyphenyl)methanethiol; p-Carboxybenzylthiol; 4-(Thiomethyl)benzoic acid; 4-(Hydroxymethyl)benzenecarbothioic acid (tautomer)
EINECS	Contact for details

Quality Control

Our 4-(Mercaptomethyl)Benzoic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for research and industrial synthesis. Certificates of Analysis (COA) detailing all specifications are available upon request, providing full traceability and quality assurance for your projects.

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 to oxidation, it is recommended to store the product under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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