Description

1-Butanesulfonic Acid, 4,4'-Oxybis- is a specialized organosulfur compound featuring a sulfonic acid group linked via an oxybis bridge. This structure makes it a valuable intermediate and catalyst in advanced organic synthesis and industrial processes. It is primarily sought by manufacturers in the pharmaceutical, agrochemical, and polymer industries for applications requiring a strong organic acid or a sulfonating agent.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs), particularly for introducing sulfonate groups to enhance solubility or biological activity.
• Polymer & Resin Production: Acts as a catalyst or monomer in polymerization reactions for producing specialty polymers, ion-exchange resins, and polyelectrolytes.
• Agrochemical Synthesis: Serves as a key building block in the manufacture of herbicides, fungicides, and other crop protection agents.
• Catalysis & Organic Synthesis: Employed as a strong acid catalyst in various organic transformations, including esterification, alkylation, and condensation reactions.
• Electroplating & Surface Treatment: Used in electroplating baths and surface treatment formulations as an additive to improve bath stability and coating quality.
• Research & Development: A valuable reagent for chemical research in academic and industrial R&D laboratories exploring new synthetic pathways.

Basic Information

Product Name	1-Butanesulfonic Acid, 4,4'-Oxybis-
CAS No.	61161-42-0
Molecular Formula	C₈H₁₈O₅S₂
Molecular Weight	258.35 g/mol
Synonyms	4,4'-Oxybis(1-butanesulfonic acid); Bis(4-sulfobutyl) ether; 1,1'-[Oxybis(4,1-butanediyl)]bis[sulfonic acid]; Di(4-sulfobutyl) ether; 4,4'-Oxybis(butane-1-sulfonic acid); Oxybis(butane-4,1-diyl) disulfonate (acid form); Contact for details on additional trade names.
EINECS	Contact for details

Quality Control

Our 1-Butanesulfonic Acid, 4,4'-Oxybis- is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for industrial and research applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and a strong acid/organic solvent; ensure the container is kept tightly sealed to exclude moisture and stored separately from bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm

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