Description

1,3-Benzenedicarboxylic Acid, Mono(2-Hydroxyethyl) Ester is a versatile organic intermediate, specifically a monoester of isophthalic acid. This compound is valued for its bifunctional nature, containing both a carboxylic acid and a hydroxyl group, which enables its use in polymerization and modification reactions. It is primarily sought by manufacturers in the polymer, coatings, and specialty chemical industries for producing polyesters, plasticizers, and other performance additives.

Application

• Polymer & Resin Synthesis: A key monomer or chain modifier in the production of unsaturated polyesters, alkyd resins, and other specialty polymers.
• Plasticizer Intermediate: Used in the synthesis of polymeric plasticizers, which offer improved permanence and performance in PVC and other flexible plastics.
• Coating Formulations: Imparts flexibility and adhesion in high-performance industrial and protective coatings.
• Adhesive & Sealant Production: Serves as a building block for adhesives requiring specific rheological and bonding properties.
• Chemical Intermediate: Utilized in organic synthesis for further reactions at either the acid or hydroxyl functional group.
• Specialty Additives: A precursor for UV stabilizers, lubricant additives, and other functional chemical additives.

Basic Information

Product Name	1,3-Benzenedicarboxylic Acid, Mono(2-Hydroxyethyl) Ester
CAS No.	4890-15-7
Molecular Formula	C10H10O5
Molecular Weight	210.18 g/mol
Synonyms	2-Hydroxyethyl isophthalate; Mono(2-hydroxyethyl) isophthalate; Isophthalic acid mono(2-hydroxyethyl) ester; HEIP; MEHI; 1,3-Benzenedicarboxylic acid, 2-hydroxyethyl ester; 2-Hydroxyethyl hydrogen isophthalate; β-Hydroxyethyl isophthalate
EINECS	225-506-7

Quality Control

Our production of 1,3-Benzenedicarboxylic Acid, Mono(2-Hydroxyethyl) Ester adheres to stringent quality management protocols. Each batch is analyzed to ensure consistent purity and meets defined specifications. Certificates of Analysis (COA) documenting key parameters such as assay, identity, and impurity profiles are provided to guarantee traceability and compliance for your applications.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product quality.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm

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