Description

Phenolsulphonicacid,Sodiumsalt CAS NO 36747-37-2 is the sodium salt derivative of phenolsulfonic acid, a versatile aromatic sulfonate compound. This product is valued for its solubility in water and its role as an intermediate and functional additive in various chemical syntheses. It is primarily needed by manufacturers in the chemical, pharmaceutical, and agrochemical industries for applications ranging from synthesis to formulation.

Application

• Chemical Synthesis Intermediate: Used in the production of dyes, pigments, and other specialty organic compounds.
• Pharmaceutical Manufacturing: Serves as a building block or salt-forming agent in the synthesis of certain active pharmaceutical ingredients (APIs).
• Agrochemical Formulations: Employed as a component or intermediate in the manufacture of pesticides and herbicides.
• Electroplating Additive: Functions as a brightening or leveling agent in specific electroplating bath formulations.
• Research & Development: Utilized in laboratory-scale organic synthesis and process development.
• Industrial Surfactant Precursor: Acts as a starting material for the synthesis of certain anionic surfactants.

Basic Information

Product Name	Phenolsulphonicacid,Sodiumsalt
CAS No.	36747-37-2
Molecular Formula	C6H5NaO4S
Molecular Weight	196.16 g/mol
Synonyms	Sodium Phenolsulfonate; Phenolsulfonic Acid Sodium Salt; Sodium 4-Hydroxybenzenesulfonate; 4-Hydroxybenzenesulfonic Acid Sodium Salt; Sodium p-Phenolsulfonate; Phenol-4-sulfonic Acid Sodium Salt; Benzenesulfonic Acid, 4-hydroxy-, Sodium Salt (1:1)
EINECS	Contact for details

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards and batch-to-batch consistency. Quality parameters typically include assay/purity, identification, and control of specific impurities. Certificates of Analysis (COA) detailing these results are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area. Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric humidity. Recommended storage temperature is 15-25°C.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	Contact for details

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