Description

m-Toluenesulfonyl Chloride is a versatile and highly reactive sulfonyl chloride derivative, essential as a key building block in organic synthesis. Its primary value lies in its ability to act as a sulfonating and protecting agent, facilitating the creation of complex molecules with high precision and efficiency. This compound is critically needed by the pharmaceutical, agrochemical, and specialty chemical industries for the synthesis of active ingredients, dyes, and advanced materials.

Application

• Pharmaceutical Intermediates: A crucial reagent for the synthesis of sulfonamide drugs and other active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Used in the production of herbicides, fungicides, and other crop protection agents.
• Dye and Pigment Manufacturing: Serves as an intermediate in the creation of various sulfonated dyes and colorants.
• Polymer Chemistry: Employed as a modifying agent or crosslinker in the production of specialty polymers and resins.
• Chemical Research & Development: A fundamental tool for organic chemists in academia and R&D for constructing novel molecular architectures.
• Protecting Group Chemistry: Used to protect hydroxyl and amino groups during multi-step synthetic sequences.

Basic Information

Product Name	m-Toluenesulfonyl Chloride
CAS No.	1899-93-0
Molecular Formula	C7H7ClO2S
Molecular Weight	190.65 g/mol
Synonyms	3-Methylbenzenesulfonyl chloride; m-Tosyl chloride; 3-Toluenesulfonyl chloride; Toluene-3-sulfonyl chloride; meta-Toluenesulfonyl chloride; m-TsCl; 3-Methylphenylsulfonyl chloride; Benzenesulfonyl chloride, 3-methyl-
EINECS	217-600-1

Quality Control

Our m-Toluenesulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation by IR spectroscopy, to ensure it meets exacting standards for industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed to exclude moisture. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Melting Point	10°C - 12°C
Water Content (KF)	≤ 0.5%

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