Description

p-Cumenesulphonic Acid is a versatile organic sulfonic acid derivative, valued for its strong acidity and solubility in organic media. This compound serves as a highly effective acid catalyst and intermediate in a wide range of industrial synthesis processes. It is essential for manufacturers in the chemical, pharmaceutical, and agrochemical sectors seeking reliable and efficient acidic reagents.

Application

• Chemical Synthesis Catalyst: Acts as a strong acid catalyst in organic reactions such as esterification, alkylation, and resin curing.
• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and fine chemicals.
• Dye and Pigment Manufacturing: Serves as a sulfonating agent and intermediate in the production of dyes and colorants.
• Agrochemical Production: Employed in the synthesis of herbicides, pesticides, and other crop protection agents.
• Electroplating Additive: Functions as a brightening agent and electrolyte component in metal surface treatment baths.
• Ion Exchange Resins: Used as a monomer or functionalizing agent in the manufacture of specialty polymer resins.
• Laboratory Reagent: Utilized as a standardized acid source in analytical chemistry and research.

Basic Information

Product Name	p-Cumenesulphonic Acid
CAS No.	16066-35-6
Molecular Formula	C9H12O3S
Molecular Weight	200.25 g/mol
Synonyms	4-Isopropylbenzenesulfonic Acid; p-Isopropylbenzenesulfonic Acid; Cumene-4-sulfonic Acid; (4-Isopropylphenyl)sulfonic Acid; 4-(1-Methylethyl)benzenesulfonic Acid; p-Cumene Sulfonic Acid; PCMSA; Cumenesulfonic Acid
EINECS	240-214-6

Quality Control

Our p-Cumenesulphonic Acid is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. The product undergoes comprehensive analytical testing, including assay, impurity profiling, and physical characterization. A Certificate of Analysis (COA) detailing all test results is provided with each shipment to guarantee compliance with your specifications and industry standards.

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 material is hygroscopic (moisture-sensitive) and a strong acid/organic solvent; containers must be kept tightly sealed to exclude moisture and stored separately from bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
Sulfated Ash	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm
Melting Point	90 - 95 °C

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