Description

Benzenesulfonic Acid, 3,4-Dimethyl-, 4-Formylphenyl Ester is a specialized organic sulfonate ester, a key intermediate in advanced chemical synthesis. This compound matters for its role as a versatile building block in the production of high-performance materials and fine chemicals, offering precise reactivity for functional group transformations. It is primarily needed by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for developing novel active ingredients and functional additives.

Application

• Pharmaceutical intermediate for the synthesis of novel drug candidates and active pharmaceutical ingredients (APIs).
• Key building block in agrochemical research for creating advanced herbicides, fungicides, and plant growth regulators.
• Monomer or functional additive in the production of specialty polymers and high-performance resins.
• Intermediate for organic synthesis in fine chemical production, particularly for introducing sulfonate ester groups.
• Research chemical in academic and industrial laboratories for studying reaction mechanisms and developing new synthetic methodologies.
• Potential precursor for photoacid generators (PAGs) used in advanced photoresist formulations for electronics.

Basic Information

Product Name	Benzenesulfonic Acid, 3,4-Dimethyl-, 4-Formylphenyl Ester
CAS No.	124852-63-7
Molecular Formula	C15H14O4S
Molecular Weight	290.34 g/mol
Synonyms	4-Formylphenyl 3,4-Dimethylbenzenesulfonate; p-Formylphenyl 3,4-Dimethylbenzenesulfonate; 3,4-Dimethylbenzenesulfonic Acid 4-Formylphenyl Ester; 4-Hydroxybenzaldehyde 3,4-Dimethylbenzenesulfonate Ester; (4-Formylphenoxy)sulfonyl-3,4-dimethylbenzene
EINECS	Contact for details

Quality Control

Our Benzenesulfonic Acid, 3,4-Dimethyl-, 4-Formylphenyl Ester is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting key specifications are available upon request to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from strong oxidizing agents, strong bases, and sources of heat.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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