Description

4-(2,5-Dimethyl-Benzenesulfonyloxy)-Benzoic Acid is a specialized organic sulfonate ester derivative of benzoic acid, serving as a high-value synthetic intermediate. This compound is critical for constructing complex molecular architectures in advanced pharmaceutical and agrochemical research. It is primarily sought by R&D chemists and process development scientists in the fine chemical, pharmaceutical, and crop protection industries for its utility in creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly in medicinal chemistry programs targeting specific enzyme inhibitors.
• Agrochemical Synthesis: Used in the development of next-generation herbicides, fungicides, and plant growth regulators.
• Liquid Crystal & OLED Material Precursor: Serves as a starting material for synthesizing advanced organic electronic components and display materials.
• Polymer Modification Agent: Employed to introduce functional benzoate and sulfonate groups into polymer chains to alter material properties.
• Chemical Biology Probe Development: Utilized in creating tagged molecules for studying biological pathways and protein interactions.
• Custom Synthesis & Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for client-specific synthesis projects.

Basic Information

Product Name	4-(2,5-Dimethyl-Benzenesulfonyloxy)-Benzoic Acid
CAS No.	721916-19-4
Molecular Formula	C15H14O5S
Molecular Weight	306.34 g/mol
Synonyms	Benzoic acid, 4-[(2,5-dimethylphenyl)sulfonyl]oxy]-; 4-[(2,5-Dimethylphenyl)sulfonyloxy]benzoic acid; 4-(2,5-Dimethylbenzenesulfonyloxy)benzoic acid; 4-Hydroxybenzoic acid 2,5-dimethylbenzenesulfonate ester; p-Carboxyphenyl 2,5-dimethylbenzenesulfonate; 721916-19-4; AS-76337; ZINC000103254757
EINECS	Contact for details

Quality Control

Our 4-(2,5-Dimethyl-Benzenesulfonyloxy)-Benzoic Acid is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via NMR and IR spectroscopy, to ensure it meets the stringent requirements of research and development applications. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting batch-specific results.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture. Keep away from heat and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 1.0%
Melting Point	Contact for details
Residue on Ignition	≤ 0.1%

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