Skip to content
Molekula

Molekula

2-Bromoethanesulfonic acid sodium salt

SKU 11966700 CAS 4263-52-9 C2H4BrNaO3S MW 211.01 Available on enquiry

Supplying 4,500+ customers in over 80 countries

ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Certificate of Analysis with every batch

2-Bromoethanesulfonic acid sodium salt is an organic sulfonic acid derivative used primarily as an alkylating (2-sulfoethylating) agent in organic synthesis, where bromide acts as the leaving group so that a sulfoethyl group is attached to nucleophiles, for example in the preparation of taurine derivatives and coenzyme M (mesna). As BES, it is also widely used as a coenzyme M analogue that inhibits methanogenesis. It is also employed in biochemical research for selective functionalization and as a reagent in peptide chemistry. This chemical has a CAS number of 4263-52-9, with the molecular formula C2H4BrNaO3S and a molecular weight of 211.01 g/mol. It is stable at ambient storage conditions and carries a signal word of "Warning" under standard handling guidelines. Molekula supplies 2-Bromoethanesulfonic acid sodium salt from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

This substance is available from Molekula on enquiry. Full specification, Safety Data Sheet and Certificate of Analysis documentation are provided with your quotation once our team confirms the grade and pack size you need.

Contact sales
Expect a response within hours Speak to a chemist: +44 (0) 3302 000333

Overview

SKU
11966700
CAS Number
4263-52-9
IUPAC Name
sodium 2-bromoethanesulfonate
EC Number
224-244-4
Molecular Formula
C2H4BrNaO3S
Molecular Weight
211.01
Exact Mass
209.8962
SMILES
C(CBr)S(=O)(=O)[O-].[Na+]
InChIKey
HNFOAHXBHLWKNF-UHFFFAOYSA-M
InChI
InChI=1S/C2H5BrO3S.Na/c3-1-2-7(4,5)6;/h1-2H2,(H,4,5,6);/q;+1/p-1
PubChem CID
23666797

Synonyms

  • 2-bromoethanesulfonic acid sodium
  • 2-Bromoethanesulfonic sodium salt
  • 2-bromoethylsulfonate sodium salt
  • C2H4BrNaO3S
  • Ethanesulfonic acid, 2-bromo-, sodium salt
  • Ethanesulfonic acid, 2-bromo-, sodium salt (1:1)
  • sodium 2-bromoethane-1-sulfonate
  • Sodium 2-bromoethanesulfonate
  • Sodium 2-bromoethanesulphonate
  • Sodium bromoethylsulfonate

Frequently asked questions

What is 2-Bromoethanesulfonic acid sodium salt primarily used for?

It is commonly used as a reagent in organic synthesis, particularly for bromoalkylation reactions, and in biochemical research as a coenzyme M analogue (BES) that inhibits methyl-coenzyme M reductase and thereby methanogenesis.

What is the molecular formula and molecular weight of this compound?

The molecular formula is C₂H₄BrNaO₃S, and the molecular weight is 211.01 g/mol.

What safety classification does this product have, and how should it be stored?

The product has a Signal Word of Warning (GHS classification). Store it at ambient temperature in a dry, well-ventilated area, away from incompatible substances.

What grades or purities are available for this compound?

Molekula supplies this compound in analytical and synthesis-grade purity, typically ≥97% purity unless otherwise specified.

Can Molekula supply this product in bulk quantities?

Yes, we can provide this compound in bulk, with minimum order quantities and packaging options tailored to your requirements—please contact us for details.

What documentation is provided with an order of this chemical?

Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS/SDS), and batch-specific documentation for traceability.

Related products

Molekula has supplied fine chemicals and biochemicals since 1999, and its facilities are ISO 9001:2015 and ISO 14001:2015 certified. Every dispatched batch is logged with a batch number and matched to a Certificate of Analysis, and Safety Data Sheets are available in five languages.

Request a quote
Tell us the product and the quantity you need — including quantities larger than our listed packs. Expect a response within hours.
Full name
Company
Email
Phone (optional)
Product
Quantity needed

Ask for whatever you actually need — the pack sizes on our catalogue pages are a starting point, not a limit.

Message
View basket