Description

4-Methoxybenzyl Mercaptan is a versatile aromatic thiol compound with the CAS registry number 6258-60-2. It serves as a critical building block and intermediate in advanced organic synthesis, prized for its reactive thiol (-SH) group and the electron-donating methoxy substituent. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries, where it is used to introduce the 4-methoxybenzylthio moiety into target molecules.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing active pharmaceutical ingredients (APIs), particularly in the development of compounds with sulfur-containing functional groups.
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and other crop protection agents where the benzyl mercaptan structure imparts specific biological activity.
• Ligand and Catalyst Preparation: Serves as a precursor for chiral ligands or metal-complexing agents used in asymmetric catalysis.
• Polymer Modification: Acts as a chain transfer agent or functional monomer in the synthesis of specialty polymers and resins to modify properties.
• Flavor and Fragrance Ingredient: Intermediate for creating sulfur-containing aroma compounds, contributing to savory or roasted notes in complex flavor profiles.
• Organic Synthesis Reagent: Employed in nucleophilic substitution reactions, thioether formation, and as a protective group for thiols in multi-step synthetic pathways.

Basic Information

Product Name	4-Methoxybenzyl Mercaptan
CAS No.	6258-60-2
Molecular Formula	C8H10OS
Molecular Weight	154.23 g/mol
Synonyms	p-Methoxybenzyl Mercaptan; (4-Methoxyphenyl)methanethiol; 4-Methoxybenzenemethanethiol; 4-Methoxybenzylthiol; 1-(Mercaptomethyl)-4-methoxybenzene; p-Methoxybenzylthiol; PMBM; Anisyl Mercaptan
EINECS	228-414-5

Quality Control

Our 4-Methoxybenzyl Mercaptan is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including chromatography (GC/HPLC) and spectroscopic methods, to ensure high purity and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). This product is easily oxidized; for long-term storage, an inert atmosphere (nitrogen or argon) is recommended. Keep away from strong oxidizing agents and bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

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