2,4-Dichlorobenzenesulfonyl chloride

CAS 16271-33-3Cl2C6H3SO2ClChemical Synthesis

2,4-Dichlorobenzenesulfonyl chloride (CAS: 16271-33-3), with the linear formula Cl₂C₆H₃SO₂Cl and a molecular weight of 245.51 g/mol, is a key organic building block. This compound serves as a valuable intermediate in chemical synthesis, particularly for the introduction of the 2,4-dichlorobenzenesulfonyl group into various organic molecules. Its reactivity makes it useful in the development of new chemical entities.

Synonyms: Cl2C6H3SO2Cl

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2,4-Dichlorobenzenesulfonyl chloride (Cl2C6H3SO2Cl) — chemical structure, CAS 16271-33-3; Chemistry, fine chemical supplied by Tech Serve Solutions

Building BlocksChemical SynthesisOrganic Building BlocksSulfonyl HalidesSulfur Compounds

01 /Applications

Organic Synthesis Intermediate

Serves as a crucial reagent for the synthesis of more complex organic molecules. It is employed in the introduction of the 2,4-dichlorobenzenesulfonyl moiety, enabling the creation of diverse chemical structures.

Pharmaceutical Research

Utilised in the early stages of drug discovery and development as a building block for potential pharmaceutical agents. Its specific structural features can impart desired properties to candidate molecules.

Agrochemical Development

Can be employed in the synthesis of novel compounds with potential applications in agriculture, such as pesticides or herbicides, by incorporating the 2,4-dichlorobenzenesulfonyl group.

02 /Properties

Molecular weight	245.51
Linear formula	Cl2C6H3SO2Cl
Assay	97%
Melting point	55-58 °C(lit.)

03 /Safety & handling

GHS hazard pictogram: Corrosive (GHS05) — Corrosive

Danger

Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements

P280Wear protective gloves, clothing and eye/face protection
P305IF IN EYES
P310Immediately call a POISON CENTER or doctor

Protective equipment	Eyeshields, Faceshields, full-face particle respirator type N100 (US), Gloves, respirator cartridge type N100 (US), type P1 (EN143) respirator filter, type P3 (EN 143) respirator cartridges
Transport (UN / ADR)	UN 3261 8 / PGII
Water hazard class (WGK, DE)	3
Hazard codes (EU)	C
Risk statements (R)	34
Safety statements (S)	26-36/37/39-45

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

16271-33-3

MDL number

MFCD00052712

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is 2,4-Dichlorobenzenesulfonyl chloride used for?

2,4-Dichlorobenzenesulfonyl chloride (CAS: 16271-33-3) is primarily used as a building block and intermediate in organic synthesis, particularly for introducing the 2,4-dichlorobenzenesulfonyl group in the development of pharmaceuticals and agrochemicals.

What are the CAS number and chemical formula?

The CAS number for 2,4-Dichlorobenzenesulfonyl chloride is 16271-33-3, and its linear formula is Cl₂C₆H₃SO₂Cl.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies 2,4-Dichlorobenzenesulfonyl chloride with an assay of 97%. We do not represent this product as USP, BP, or EP grade.

How should 2,4-Dichlorobenzenesulfonyl chloride be handled safely?

This compound is classified with GHS05 and the signal word Danger. It causes severe skin burns and eye damage (H314). Appropriate personal protective equipment, including eyeshields, face shields, gloves, and suitable respiratory protection, must be used. Handle in a well-ventilated area.