Description

1,3-Benzenedicarboxylic Acid, Monophenyl Ester is a high-purity organic intermediate of significant commercial importance. This compound serves as a versatile building block in advanced chemical synthesis, valued for its specific aromatic substitution pattern. It is primarily sought after by manufacturers in the pharmaceutical, agrochemical, and specialty polymer industries for the development of active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds requiring a meta-substituted aromatic core.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators.
• Polymer & Resin Modifier: Acts as a monomer or cross-linking agent in the manufacture of specialty polyesters, polyamides, and epoxy resins to enhance thermal or mechanical properties.
• Liquid Crystal & OLED Materials: Serves as a precursor in the synthesis of organic electronic materials and liquid crystal compounds.
• Dye & Pigment Intermediate: Utilized in the production of high-performance, color-fast organic dyes and pigments.
• Fine Chemical Synthesis: Employed in research and development for creating complex organic molecules in academic and industrial laboratories.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Monophenyl Ester
CAS No.	37970-35-7
Molecular Formula	C15H12O4
Molecular Weight	256.25 g/mol
Synonyms	Monophenyl Isophthalate; Phenyl Hydrogen Isophthalate; Isophthalic Acid Monophenyl Ester; Phenyl 3-Carboxybenzoate; 3-(Phenoxycarbonyl)benzoic Acid; 3-Carboxyphenyl Benzoate; Isophthalic Acid Phenyl Ester; Phenyl Isophthalate (partial ester)
EINECS	Contact for details

Quality Control

Our 1,3-Benzenedicarboxylic Acid, Monophenyl Ester is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for demanding synthesis applications. Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are available for every shipment upon request.

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). Keep away from strong oxidizing agents, strong bases, and sources of ignition.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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