Description

Diglycolic Anhydride is a versatile cyclic anhydride monomer essential for creating high-performance polymers and specialty chemicals. Its bifunctional reactivity makes it a valuable building block for synthesizing materials with tailored properties such as enhanced thermal stability, adhesion, and flexibility. This product is particularly critical for manufacturers in the polymer, resin, and pharmaceutical intermediate sectors seeking to innovate and improve their formulations.

Application

• Polymer & Resin Synthesis: A key monomer for producing alkyd resins, polyesters, and epoxy curing agents, imparting improved mechanical and chemical resistance.
• Pharmaceutical Intermediates: Used in the synthesis of active pharmaceutical ingredients (APIs) and prodrugs, leveraging its reactive anhydride group.
• Crosslinking Agent: Functions as an effective crosslinker for coatings, adhesives, and composites to enhance durability and network density.
• Chemical Intermediate: Serves as a precursor for diglycolic acid, esters, and amides used in various organic synthesis pathways.
• Specialty Plasticizers: Employed in the manufacture of plasticizers for polymers requiring specific solubility and compatibility profiles.
• Surface Modifiers: Used to modify surface properties of materials for improved wettability, adhesion, or biocompatibility.

Basic Information

Product Name	Diglycolic Anhydride
CAS No.	4480-83-5
Molecular Formula	C4H4O4
Molecular Weight	116.07 g/mol
Synonyms	2,5-Dioxotetrahydrofuran-3-acetic acid; 3-Carboxymethylglutaric anhydride; Diglycolic acid anhydride; Oxydiacetic acid anhydride; 3-(Carboxymethyl)glutaric anhydride; 1,4-Dioxane-2,6-dione, 3-acetic acid; Tetrahydro-2,5-dioxofuran-3-acetic acid
EINECS	224-769-5

Quality Control

Our Diglycolic Anhydride is manufactured under a strict quality management system to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) for each lot, detailing key parameters such as assay, moisture content, and impurity profiles. Our quality commitment aligns with cGMP principles where applicable, supporting its use in demanding industrial and research applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent degradation from atmospheric moisture. Keep away from incompatible materials such as strong bases, amines, and alcohols.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	94 - 98 °C
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.