Description

2-Formylbenzenesulfonyl Chloride is a versatile aromatic sulfonyl chloride derivative featuring a reactive formyl group. This bifunctional compound is a critical building block in organic synthesis, valued for its ability to introduce both sulfonyl and aldehyde functionalities into target molecules. It is primarily utilized by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of complex intermediates, active pharmaceutical ingredients (APIs), and novel chemical entities.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of sulfonamide-based drugs, enzyme inhibitors, and other bioactive molecules.
• Agrochemical Synthesis: Building block for creating novel herbicides, fungicides, and plant growth regulators.
• Dye and Pigment Manufacturing: Used in the production of specialized dyes and colorants.
• Polymer Chemistry: Monomer or cross-linking agent for synthesizing functional polymers and resins.
• Chemical Research: Valuable reagent in academic and industrial R&D for exploring new synthetic pathways and creating compound libraries.
• Ligand and Catalyst Development: Intermediate for synthesizing complex ligands used in catalytic systems.

Basic Information

Product Name	2-Formylbenzenesulfonyl Chloride
CAS No.	21639-41-8
Molecular Formula	C7H5ClO3S
Molecular Weight	204.63 g/mol
Synonyms	2-Formylbenzenesulfonyl chloride; o-Formylbenzenesulfonyl chloride; 2-Carboxybenzenesulfonyl chloride (tautomer); Benzaldehyde-2-sulfonyl chloride; 2-Sulfobenzoic acid chloride; o-Sulfobenzoyl chloride; 1-Formyl-2-(chlorosulfonyl)benzene; 2-(Chlorosulfonyl)benzaldehyde
EINECS	Contact for details

Quality Control

Our 2-Formylbenzenesulfonyl Chloride is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. We provide comprehensive analytical data, including HPLC/GC purity, identity confirmation (IR, NMR), and impurity profiling. A Certificate of Analysis (COA) is supplied with each batch, detailing all specifications and test results. Our quality system is designed to meet the stringent requirements of research and development applications.

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 product is hygroscopic (moisture-sensitive) and should be handled under anhydrous conditions 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 or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 1.0%

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