Description

3,4-Dichloro-2-Methoxybenzenesulfonyl Chloride (Saltdata: Free) is a high-purity sulfonyl chloride derivative, a critical building block in advanced organic synthesis. This compound matters for its role as a key electrophilic reagent, enabling the introduction of the sulfonyl functional group to create novel molecules with specific properties. It is primarily needed by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of active ingredients and specialty intermediates.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of sulfonamide-based drug candidates, including enzyme inhibitors and receptor antagonists.
• Agrochemical Synthesis: Used in the development of novel herbicides, fungicides, and pesticides where the sulfonyl moiety is essential for bioactivity.
• Material Science Research: Employed in the creation of specialty polymers, dyes, and functional materials that require sulfonated aromatic structures.
• Chemical Biology Probes: Serves as a reactive handle for labeling proteins or modifying biomolecules in probe and assay development.
• Custom Synthesis & Contract Manufacturing: A vital starting material for custom synthesis houses producing high-value, low-volume specialty chemicals for clients.

Basic Information

Product Name	3,4-Dichloro-2-Methoxybenzenesulfonyl Chloride (Saltdata: Free)
CAS No.	1246776-77-1
Molecular Formula	C7H5Cl3O3S
Molecular Weight	291.53 g/mol
Synonyms	2-Methoxy-3,4-dichlorobenzenesulfonyl chloride; 3,4-Dichloro-2-methoxybenzene-1-sulfonyl chloride; 1-(Chlorosulfonyl)-3,4-dichloro-2-methoxybenzene; Benzenesulfonyl chloride, 3,4-dichloro-2-methoxy-; 1246776-77-1; 3,4-Dichloro-2-methoxybenzenesulfonylchloride
EINECS	Contact for details

Quality Control

Our 3,4-Dichloro-2-Methoxybenzenesulfonyl Chloride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR, to ensure it meets the high standards required for research and process chemistry. 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, well-ventilated place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled under an inert atmosphere or in a dry environment to prevent decomposition. Keep away from strong bases, oxidizing agents, and sources of ignition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0% (Area %)
Water Content (KF)	≤ 0.5%
Melting Point	Contact for details

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