Description

Diethylenetriaminepentaacetic Dianhydride is a high-purity, reactive anhydride derivative of the well-known chelating agent DTPA. This compound is a critical intermediate for synthesizing advanced chelating polymers, resins, and functional materials with enhanced metal-binding capabilities. It is essential for manufacturers in the water treatment, polymer, and specialty chemical industries seeking to develop products for selective ion removal, catalysis, or as cross-linking agents.

Application

• Synthesis of Chelating Resins & Polymers: Primary building block for creating high-capacity ion-exchange and chelating resins used in water purification, hydrometallurgy, and nuclear decontamination.
• Cross-linking Agent: Used to modify and cross-link polymers, improving thermal stability, mechanical properties, and chemical resistance in specialty coatings and composites.
• Pharmaceutical Intermediate: Serves as a precursor in the synthesis of contrast agents for magnetic resonance imaging (MRI) and other diagnostic pharmaceuticals.
• Analytical Reagent Manufacturing: Key intermediate for producing high-purity complexometric titrants and reagents used in analytical chemistry for metal ion detection.
• Surface Modification: Used to functionalize surfaces of nanoparticles, silica, or other substrates to impart chelating properties for catalysis or sensor applications.
• Research & Development: Employed in academic and industrial R&D for developing new materials with specific metal-binding functionalities.

Basic Information

Product Name	Diethylenetriaminepentaacetic Dianhydride
CAS No.	2311-26-4
Molecular Formula	C14H12N3O10
Molecular Weight	382.26 g/mol
Synonyms	DTPA Dianhydride; Diethylenetriamine-N,N,N',N'',N''-pentaacetic Dianhydride; Pentetic Acid Dianhydride; 2,2',2'',2''',2''''-(1,4,7-Triazonane-1,4,7-triyl)pentaacetic Dianhydride; DTPADA; DTPA Anhydride; DTPA-Bisanhydride; N,N-Bis[2-[bis(carboxymethyl)amino]ethyl]glycine Dianhydride
EINECS	219-011-7

Quality Control

Our Diethylenetriaminepentaacetic Dianhydride is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including assay by titration, identification by FT-IR, and impurity profiling, to ensure it meets high-purity standards suitable for synthesis and industrial applications. A comprehensive Certificate of Analysis (COA) documenting purity, physical properties, and test results is provided with every shipment to guarantee traceability and consistency.

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). This product is hygroscopic (moisture-sensitive) and must be kept under a dry, inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis and maintain reactivity. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (Anhydride Content)	≥ 98.0 %
Melting Point	Contact for details
Loss on Drying	≤ 1.0 %
Heavy Metals (as Pb)	≤ 10 ppm
Residual Solvents (GC)	Meets ICH guidelines

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