Description

4-(4-Hydroxymethylphenyl)Phenylsulfonic Acid is a specialized aromatic sulfonic acid derivative that serves as a versatile intermediate in advanced organic synthesis. Its unique bifunctional structure, combining a sulfonic acid group with a hydroxymethylphenyl moiety, makes it valuable for introducing both hydrophilic and reactive sites into target molecules. This compound is particularly sought after by research and development teams in the pharmaceutical and specialty chemical industries for applications requiring precise molecular modification and controlled solubility.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), especially for compounds requiring enhanced water solubility or specific ionic characteristics.
• Polymer Modification: Used to introduce sulfonate groups into polymer backbones, improving hydrophilicity, ion-exchange capacity, or dye affinity for advanced materials.
• Liquid Crystal & Electronic Materials: Serves as a precursor or dopant in the production of specialty chemicals for electronic applications, where its aromatic and ionic properties are utilized.
• Catalyst & Ligand Synthesis: Employed in the preparation of organocatalysts or metal-chelating ligands for asymmetric synthesis and other catalytic processes.
• Surfactant & Detergent Intermediate: Acts as a starting material for synthesizing specialized anionic surfactants with specific aromatic frameworks.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new chemical entities and reaction pathways.

Basic Information

Product Name	4-(4-Hydroxymethylphenyl)Phenylsulfonic Acid
CAS No.	74758-55-7
Molecular Formula	C13H12O4S
Molecular Weight	264.30 g/mol
Synonyms	4-(4-Hydroxymethylphenyl)benzenesulfonic Acid; [1,1'-Biphenyl]-4-sulfonic Acid, 4'-(hydroxymethyl)-; 4'-Hydroxymethyl[1,1'-biphenyl]-4-sulfonic Acid; (4'-Hydroxymethylbiphenyl-4-yl)sulfonic Acid; p-(4-Hydroxymethylphenyl)benzenesulfonic Acid; Biphenyl-4-sulfonic Acid, 4'-hydroxymethyl- Derivative
EINECS	Contact for details

Quality Control

Every batch of 4-(4-Hydroxymethylphenyl)Phenylsulfonic Acid is manufactured and tested under a strict quality management system. Our products undergo rigorous analytical testing, including HPLC, NMR, and titration methods, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specification results is provided with each shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature and strong acid properties, the container must be kept sealed and stored separately from bases and reactive materials.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline 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.