Description

2-Methoxy-4,5-Dimethylbenzenesulfonyl Chloride (Saltdata: Free) is a specialized aromatic sulfonyl chloride derivative, a crucial building block in advanced organic synthesis. Its primary value lies in its high reactivity as a sulfonylation agent, enabling the precise introduction of the sulfonyl functional group into target molecules. This compound is essential for researchers and manufacturers in the pharmaceutical and agrochemical industries, particularly for developing active pharmaceutical ingredients (APIs) and novel crop protection agents.

Application

• Pharmaceutical Intermediate: Key reagent in the synthesis of sulfonamide-based drugs, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in the production of modern herbicides and fungicides that require specific sulfonyl group chemistry.
• Dye and Pigment Manufacturing: Acts as a precursor for creating sulfonated dyes with enhanced solubility and color fastness.
• Polymer Chemistry: Employed in the modification of polymers to introduce sulfonyl chloride groups for further functionalization.
• Chemical Research & Development: A valuable tool in medicinal chemistry for structure-activity relationship (SAR) studies and library synthesis.
• Custom Synthesis: Serves as a starting material for contract research organizations (CROs) and CDMOs producing bespoke fine chemicals.

Basic Information

Item	Detail
Product Name	2-Methoxy-4,5-Dimethylbenzenesulfonyl Chloride (Saltdata: Free)
CAS No.	90416-52-7
Molecular Formula	C9H11ClO3S
Molecular Weight	234.70 g/mol
Synonyms	4,5-Dimethyl-2-methoxybenzenesulfonyl chloride; 2-Methoxy-4,5-dimethylbenzene-1-sulfonyl chloride; 1-(Chlorosulfonyl)-2-methoxy-4,5-dimethylbenzene; 90416-52-7; Veratrole-4-sulfonyl chloride (substituted); 4,5-Dimethylveratrole-6-sulfonyl chloride
EINECS	Contact for details

Quality Control

Every batch of our 2-Methoxy-4,5-Dimethylbenzenesulfonyl Chloride is produced and tested under a strict quality management system. We ensure high purity and consistency through advanced analytical techniques including HPLC, GC, and NMR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to guarantee it meets your precise research or production specifications.

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). This product is hygroscopic (moisture-sensitive) and must be kept under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent decomposition. Keep away from heat, sparks, open flames, and incompatible materials such as strong bases, amines, and alcohols.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Melting Point	Contact for details

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