Description

Benzenesulfonoyl Chloride, 3,4-Dinitro- CAS NO 100367-66-6 is a high-purity, functionalized sulfonyl chloride derivative characterized by its two nitro substituents. This compound serves as a critical synthetic intermediate and reactive building block for the development of more complex molecules. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty chemical industries for constructing sulfonamide and sulfonate structures.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for creating sulfonamide-based drugs with potential biological activity.
• Agrochemical Synthesis: Building block for developing novel herbicides, fungicides, and pesticides where the sulfonamide moiety is required for efficacy.
• Dye and Pigment Manufacturing: Used in the production of specialty dyes and pigments, leveraging the nitro and sulfonyl chloride groups for colorant development.
• Polymer Chemistry: Acts as a monomer or cross-linking agent in the synthesis of specialty polymers, such as polyelectrolytes or sulfonated resins.
• Chemical Research (R&D): Essential reagent in organic synthesis laboratories for introducing the benzenesulfonoyl group into target molecules under controlled conditions.
• Ligand and Catalyst Development: Used to create complexing agents or catalyst precursors in coordination chemistry and catalysis research.

Basic Information

Product Name	Benzenesulfonoyl Chloride, 3,4-Dinitro-
CAS No.	100367-66-6
Molecular Formula	C6H3ClN2O6S
Molecular Weight	266.62 g/mol
Synonyms	3,4-Dinitrobenzenesulfonyl Chloride; 3,4-Dinitrobenzene-1-sulfonyl Chloride; 1-(Chlorosulfonyl)-3,4-dinitrobenzene; 3,4-DNBSC; 3,4-Dinitrophenylsulfonyl Chloride; DNBS-Cl; NSC 403821; Benzenesulfonic Acid, 3,4-Dinitro-, Chloride
EINECS	Contact for details

Quality Control

Our Benzenesulfonoyl Chloride, 3,4-Dinitro- is manufactured under strict quality protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and impurity profiling, to meet exacting customer specifications. Certificates of Analysis (COA) documenting identity, purity, and related substances are 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation from atmospheric moisture.

Specification

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

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