Description

4-Hydroxy-2-Butanesulfonic Acid is a versatile sulfonic acid derivative that serves as a key intermediate and functional additive in advanced chemical synthesis. Its bifunctional structure, containing both a hydroxyl and a sulfonic acid group, makes it valuable for introducing hydrophilic and anionic properties into target molecules. This compound is particularly relevant for manufacturers in the pharmaceutical, specialty surfactant, and polymer industries seeking to modify solubility or create novel ionic compounds.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, where the sulfonate group can enhance water solubility and bioavailability.
• Specialty Surfactant Precursor: Acts as a building block for anionic surfactants and emulsifiers with unique hydrophilic-lipophilic balance (HLB) properties for niche industrial and cosmetic formulations.
• Polymer Modification Agent: Employed to introduce sulfonate functionality into polymers, improving characteristics like antistatic properties, dyeability, and moisture absorption.
• Chemical Synthesis Intermediate: Serves as a versatile reagent in organic synthesis for creating sulfonated analogs of various organic compounds.
• Catalyst and Co-catalyst Component: Can be utilized in certain acid-catalyzed reactions or as part of catalyst systems due to its acidic nature.
• Research & Development: Used in laboratory settings for method development and the creation of novel chemical entities in academic and industrial R&D.

Basic Information

Product Name	4-Hydroxy-2-Butanesulfonic Acid
CAS No.	63467-43-6
Molecular Formula	C₄H₁₀O₄S
Molecular Weight	154.18 g/mol
Synonyms	2-Butanesulfonic acid, 4-hydroxy-; 4-Hydroxybutane-2-sulfonic acid; 1-Hydroxy-3-(sulfomethyl)propane; 3-(Hydroxymethyl)propanesulfonic acid; HMPS; 4-Hydroxy-2-butylsulfonic acid
EINECS	Contact for details

Quality Control

Our 4-Hydroxy-2-Butanesulfonic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with key parameters including assay, impurity profile, and physical specifications. Our quality commitment supports applications requiring reliable and traceable raw materials.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from strong bases, oxidizing agents, and heat sources. The container must be kept tightly closed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 1.0%
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.