Description

4-Bromo-1-Butanesulfonic Acid is a versatile bifunctional organosulfur compound, serving as a key building block in advanced organic synthesis. Its reactive bromo and sulfonic acid groups make it an invaluable intermediate for introducing sulfonate moieties and facilitating carbon chain elongation. This high-purity reagent is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries developing new active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly for creating sulfonate salts to improve solubility and bioavailability.
• Agrochemical Synthesis: Serves as a precursor for herbicides, fungicides, and plant growth regulators that incorporate sulfonic acid functionalities.
• Polymer & Material Science: Acts as a monomer or cross-linking agent for producing ion-exchange resins, conductive polymers, and specialty surfactants.
• Chemical Research & Development: Employed as a versatile alkylating and sulfonating agent in organic synthesis for constructing complex molecular architectures.
• Ligand & Catalyst Preparation: Useful for synthesizing sulfonated ligands used in homogeneous catalysis and metal complexation.
• Bioconjugation & Labeling: Applied in biochemical research for modifying proteins, peptides, and other biomolecules.

Basic Information

Product Name	4-Bromo-1-Butanesulfonic Acid
CAS No.	7762-89-2
Molecular Formula	C₄H₉BrO₃S
Molecular Weight	217.08 g/mol
Synonyms	4-Bromobutane-1-sulfonic Acid; 1-Butanesulfonic Acid, 4-bromo-; 4-Bromobutanesulphonic Acid; ω-Bromobutanesulfonic Acid; 4-Bromo-n-butanesulfonic Acid; NSC 401119; 4-BBSA
EINECS	231-831-8

Quality Control

Our 4-Bromo-1-Butanesulfonic Acid is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets the high standards required for research and industrial synthesis. A detailed Certificate of Analysis (COA) is provided with each shipment, guaranteeing traceability and consistent quality.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Due to its nature as a strong acid/organic solvent, keep away from incompatible materials such as bases, oxidizing agents, and reactive metals. The container must be kept tightly sealed in a dry environment to minimize moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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