Description

Bes CAS NO 10191-18-1 is a high-purity chemical intermediate, also known as 2-Bromoethanesulfonic acid sodium salt, valued for its role as a versatile sulfonate group donor and alkylating agent. Its consistent quality and reliable performance make it a critical component for synthesizing specialized compounds where precise molecular modification is required. This product is essential for research and development laboratories, pharmaceutical manufacturers, and fine chemical producers engaged in creating advanced materials, active pharmaceutical ingredients (APIs), and biochemical reagents.

Application

• Pharmaceutical Synthesis: Key intermediate in the production of active pharmaceutical ingredients (APIs) and prodrugs, particularly for introducing sulfonate moieties.
• Biochemical Research: Used as a substrate or reagent in enzymatic studies and for modifying biomolecules to alter solubility or reactivity.
• Material Science: Employed in the synthesis of specialty polymers, surfactants, and ionic liquids where a bromoethylsulfonate functional group is needed.
• Organic Synthesis: Serves as an alkylating agent in nucleophilic substitution reactions to introduce the 2-sulfoethyl group into target molecules.
• Ligand and Catalyst Preparation: Useful for functionalizing ligands and catalysts to enhance their properties in coordination chemistry and catalysis.

Basic Information

Item	Detail
Product Name	Bes
CAS No.	10191-18-1
Molecular Formula	C2H4BrNaO3S
Molecular Weight	211.01 g/mol
Synonyms	2-Bromoethanesulfonic acid sodium salt; Sodium 2-bromoethanesulfonate; BES sodium salt; Bromoethane sulfonic acid sodium salt; Sodium bromoethanesulfonate; 2-Bromoethanesulfonate sodium; BES; (2-Bromoethyl)sulfonic acid sodium salt
EINECS	233-458-4

Quality Control

Every batch of Bes (CAS 10191-18-1) is manufactured under a strict quality management system. We provide comprehensive analytical testing to ensure identity, purity, and consistency, with Certificates of Analysis (COA) available for all shipments. Our quality protocols are designed to meet the stringent requirements of research and pharmaceutical applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product quality and stability.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Heavy Metals (as Pb)	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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