Description

p-Cymene-2-Sulfonic Acid is a versatile aromatic sulfonic acid derivative, valued for its role as a key intermediate and catalyst in fine chemical synthesis. Its significance lies in its ability to introduce sulfonic acid functionality, which is crucial for modifying solubility and reactivity in target molecules. This compound is essential for manufacturers and R&D laboratories in the pharmaceutical, agrochemical, and specialty chemical sectors seeking reliable, high-purity building blocks.

Application

• Pharmaceutical Intermediate: Used in the synthesis of active pharmaceutical ingredients (APIs) and other drug candidates.
• Catalyst & Reagent: Serves as an acid catalyst or a sulfonating agent in various organic transformations.
• Agrochemical Synthesis: A building block for producing herbicides, fungicides, and other crop protection agents.
• Dye & Pigment Manufacturing: Employed in the production of sulfonated dyes and colorants.
• Surfactant & Detergent Precursor: Acts as a starting material for specialized anionic surfactants.
• Research & Development: Utilized in academic and industrial labs for method development and novel compound synthesis.
• Polymer Modification: Used to introduce ionic groups into polymers for enhanced properties.

Basic Information

Product Name	p-Cymene-2-Sulfonic Acid
CAS No.	96-71-9
Molecular Formula	C10H14O3S
Molecular Weight	214.28 g/mol
Synonyms	2-Isopropyl-5-methylbenzenesulfonic Acid; p-Cymene-2-sulfonic Acid; 5-Methyl-2-(1-methylethyl)benzenesulfonic Acid; 2-Isopropyl-5-methylphenylsulfonic Acid; Thymolsulfonic Acid; Carvacrolsulfonic Acid; 4-Isopropyl-3-methylbenzenesulfonic Acid
EINECS	202-531-8

Quality Control

Our p-Cymene-2-Sulfonic Acid is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity and identity. Certificates of Analysis (COA) detailing results for assay, impurities, and other critical parameters are provided to guarantee traceability and batch-to-batch consistency for your processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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