Description

Diethyl 5-(Hydroxymethyl)Isophthalate is a high-purity diester derivative of isophthalic acid, featuring a hydroxymethyl functional group. This compound serves as a versatile and critical chemical intermediate and building block in advanced organic synthesis. It is primarily utilized by R&D laboratories and industrial manufacturers in the pharmaceutical, agrochemical, and specialty polymer sectors for the development of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for synthesizing active pharmaceutical ingredients (APIs), particularly in the development of complex molecules with specific stereochemistry.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators requiring specific aromatic ester functionalities.
• Polymer & Resin Modifier: Acts as a monomer or cross-linking agent in the synthesis of specialty polyesters, epoxy resins, and coatings to enhance properties like adhesion, flexibility, or chemical resistance.
• Liquid Crystal & OLED Materials: Serves as a precursor in the manufacture of organic electronic materials and liquid crystal displays (LCDs).
• Organic Synthesis Reagent: Employed in academic and industrial research for constructing complex aromatic frameworks via esterification, transesterification, and further functional group transformations.
• Dye & Pigment Intermediate: Used in the synthesis of high-performance dyes and organic pigments.

Basic Information

Product Name	Diethyl 5-(Hydroxymethyl)Isophthalate
CAS No.	181425-91-2
Molecular Formula	C14H18O6
Molecular Weight	282.29 g/mol
Synonyms	5-(Hydroxymethyl)isophthalic Acid Diethyl Ester; Diethyl 5-Hydroxymethylisophthalate; 1,3-Benzenedicarboxylic Acid, 5-(Hydroxymethyl)-, Diethyl Ester; Isophthalic Acid, 5-(Hydroxymethyl)-, Diethyl Ester; DEHMI; 5-Hydroxymethyl-1,3-benzenedicarboxylic Acid Diethyl Ester
EINECS	Contact for details

Quality Control

Our Diethyl 5-(Hydroxymethyl)Isophthalate is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. A comprehensive Certificate of Analysis (COA) detailing identity, assay, and impurity profiles is provided with every shipment to support your quality assurance protocols.

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 acids, and strong bases.

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)	≤ 10 ppm

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