Description

4-Methylthiobenzoic Acid Methyl Ester is a versatile sulfur-containing aromatic ester, a key building block in advanced organic synthesis. Its value lies in providing a protected carboxylic acid group and a reactive methylthio moiety, enabling precise molecular construction. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries developing novel active ingredients and fine chemicals.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of drug candidates, particularly those targeting specific enzyme pathways.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and insecticides, leveraging its sulfur-based functional group.
• Liquid Crystal & OLED Material Research: Serves as a building block for creating specialized organic molecules with specific electronic and optical properties.
• Flavor & Fragrance Chemistry: Employed in the synthesis of complex aromatic compounds for high-value applications.
• Organic Synthesis Reagent: Acts as a versatile reagent for introducing the 4-(methylthio)benzoyl group into target molecules via esterification or cross-coupling reactions.
• Polymer Modification: Used to create functional monomers or additives that impart specific characteristics to polymer chains.

Basic Information

Product Name	4-Methylthiobenzoic Acid Methyl Ester
CAS No.	5977-80-0
Molecular Formula	C9H10O2S
Molecular Weight	182.24 g/mol
Synonyms	Methyl 4-(Methylthio)benzoate; Methyl p-(Methylthio)benzoate; 4-(Methylsulfanyl)benzoic Acid Methyl Ester; p-(Methylthio)benzoic Acid Methyl Ester; Benzoic acid, 4-(methylthio)-, methyl ester; Methyl 4-methylthiobenzoate
EINECS	227-786-6

Quality Control

Our 4-Methylthiobenzoic Acid Methyl Ester is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure identity, purity, and consistency. Certificates of Analysis (COA) are provided with every shipment, detailing all relevant specifications. We support compliance with global regulatory frameworks, including REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong oxidizing agents and bases.

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%
Residue on Ignition	≤ 0.1%

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