Description

Diethyl 4-Hydroxyphthalate is a versatile organic ester compound with significant utility as a key synthetic intermediate. Its value lies in the reactive hydroxyl and ester functional groups, which allow for selective chemical modifications to create more complex molecules. This compound is primarily needed by manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries for research, development, and production processes.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of active pharmaceutical ingredients (APIs), particularly for compounds with phthalate-based structures.
• Agrochemical Synthesis: Used in the production of advanced pesticides, herbicides, and plant growth regulators.
• Polymer & Resin Modifier: Serves as a monomer or additive to impart specific properties like UV stability or flexibility to specialty polymers and coatings.
• Organic Synthesis Reagent: Employed in laboratory and industrial-scale organic reactions, including esterifications and transesterifications.
• Dye & Pigment Manufacturing: Acts as a precursor in the synthesis of complex organic colorants and photostabilizers.
• Liquid Crystal & Electronic Materials: Investigated for use in the development of advanced materials for display and semiconductor applications.

Basic Information

Product Name	Diethyl 4-Hydroxyphthalate
CAS No.	64139-21-5
Molecular Formula	C₁₂H₁₄O₅
Molecular Weight	238.24 g/mol
Synonyms	4-Hydroxyphthalic Acid Diethyl Ester; Diethyl 4-Hydroxy-1,2-benzenedicarboxylate; 1,2-Benzenedicarboxylic Acid, 4-Hydroxy-, Diethyl Ester; Ethyl 4-Hydroxyphthalate; DEHP (context-specific); 4-Hydroxyphthalic Acid Ethyl Ester
EINECS	Contact for details

Quality Control

Our Diethyl 4-Hydroxyphthalate is produced under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including chromatographic purity assays and identity confirmation. A Certificate of Analysis (COA) detailing all test results 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 heat sources and incompatible materials. Due to its light-sensitive nature, containers should be opaque or stored in darkness.

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%
Related Substances (HPLC)	Total impurities ≤ 2.0%

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