Description

Methyl 4-Mercaptobenzoate is a versatile sulfur-containing aromatic ester, a key building block in organic synthesis. This compound matters for its unique thiol functionality, which enables critical reactions in the development of advanced materials and active pharmaceutical ingredients. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly those containing thioether or disulfide linkages.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and insecticides where the benzoate-thiol structure imparts specific biological activity.
• Ligand and Catalyst Preparation: Serves as a starting material for synthesizing specialized ligands used in metal-catalyzed cross-coupling reactions.
• Polymer Modification: Acts as a chain-transfer agent or functional monomer to introduce thiol groups into polymers, modifying their properties for adhesives or coatings.
• Material Science Research: Employed in the development of self-assembled monolayers (SAMs) and organic electronic materials.
• Flavor and Fragrance Ingredient Synthesis: Used as an intermediate for creating sulfur-containing aroma compounds.

Basic Information

Product Name	Methyl 4-Mercaptobenzoate
CAS No.	6302-65-4
Molecular Formula	C8H8O2S
Molecular Weight	168.21 g/mol
Synonyms	Methyl p-mercaptobenzoate; 4-(Methoxycarbonyl)benzenethiol; Methyl 4-sulfanylbenzoate; p-(Methoxycarbonyl)benzenethiol; Benzoic acid, 4-mercapto-, methyl ester; Methyl 4-thiobenzoate; Methyl para-mercaptobenzoate; Methyl thiobenzoate (ambiguous, specify para-)
EINECS	228-571-3

Quality Control

Our Methyl 4-Mercaptobenzoate is manufactured under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets the high standards required for synthetic applications. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its sensitivity to oxidation, it is recommended to store 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
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Contact for details

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