Product Overview

Diethylene Triamine Penta Acetic Acid 99% For Synthesis (CAS No. 67-43-6) is a synthetic aminopolycarboxylic acid containing five carboxymethyl groups attached to a diethylenetriamine backbone. Commonly known as DTPA or pentetic acid, it functions as a multidentate chelating ligand through its nitrogen and oxygen donor atoms. Its molecular structure enables the formation of stable coordination complexes with numerous metal ions, including transition metals and lanthanides, making it a versatile building block in coordination chemistry.

The Synthesis grade is intended for preparative chemistry involving metal chelates, functionalised complexing agents and ligand-derived intermediates. It is used to prepare iron, copper, zinc and lanthanide coordination compounds, while its carboxylic acid functionalities provide opportunities for further chemical modification. Conversion into reactive derivatives, including DTPA bisanhydride, supports the synthesis of amide-linked chelators, functionalised polymers and conjugated ligand systems for laboratory investigations involving metal binding and coordination behaviour.

Typical Applications

• Preparation of transition-metal coordination complexes and chelates
• Synthesis of lanthanide–DTPA coordination compounds
• Preparation of iron, copper and zinc chelate derivatives
• Conversion of DTPA into reactive bisanhydride intermediates
• Synthesis of DTPA-derived amide and functionalised chelating ligands
• Preparation of polymeric materials incorporating metal-binding functionalities
• Laboratory studies involving ligand modification and metal–ligand coordination chemistry

Common Synonyms

• Diethylenetriaminepentaacetic Acid
• Pentetic Acid
• DTPA
• Diethylenetriamine-N,N,N′,N″,N″-pentaacetic Acid
• DTPA Free Acid

Storage Conditions

Store in a tightly closed container in a cool, dry place, protected from moisture and excessive heat. Keep the container securely sealed after dispensing to minimise contamination and preserve the quality of the solid reagent.