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Diethylenetriaminepentaacetic Acid CAS 67-43-6
Pentetic acid or diethylenetriaminepentaacetic acid (DTPA) is an aminopolycarboxylic acid consisting of a diethylenetriamine backbone with five carboxymethyl groups. The molecule can be viewed as an expanded version of EDTA and is used similarly. It is a white, water-soluble solid.

Product Parameters


Chemical NameDiethylenetriaminepentaacetic Acid
CAS No.67-43-6
Product CategoriesAPI
Molecular FormulaC14H23N3O10
Formula Weight393.35
AppearanceWhite Crystal Powder
Packaging Method25kg/Plastic Woven Bag
Type Of TransportationBy Air/By Sea/By Train/By Express
SampleAvailable


Chemical Properties Of Diethylenetriaminepentaacetic Acid CAS 67-43-6

Appearance & Physical Statesolid
Density1.56
Boiling Point721.1ºC at 760 mmHg
Melting Point220ºC
Flash Point200ºC
Water Solubility5 g/L (20 ºC)
StabilityStable. Incompatible with strong oxidizing agents.
Storage ConditionStore in a cool, dry place. Store in a tightly closed container.

Safety Information Of Diethylenetriaminepentaacetic Acid CAS 67-43-6

RTECSMB8205000
Safety StatementsS26-S37/39-S61
HS Code29224995
WGK Germany2
RIDADRUN 3077
Risk StatementsR36/37/38; R51/53
Hazard CodesXi; N
Hazard DeclarationH319; H332; H361d
Signal WordWarning
Caution StatementP281; P305 + P351 + P338
SymbolGHS07, GHS08

Product Application Of Diethylenetriaminepentaacetic Acid CAS 67-43-6

Diethylenetriaminepentaacetic acid is used as chelating agent and forms complexes with metal ions. It finds application as a magnetic resonance imaging (MRI) contrasting agent, since it improves the image by forming a complex with a gadolinium ion. It can also be used for treatment of radioactive materials such as plutonium, americium and other actinides. It is an active component of manganese and zinc fertilizers used in agrochemical industry. It acts as a color inhibitor and is used in the production of acrylon. It is also used in soaps as a water softener.



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  • Diethylenetriaminepentaacetic Acid CAS 67-43-6
  • Diethylenetriaminepentaacetic Acid CAS 67-43-6
  • Diethylenetriaminepentaacetic Acid CAS 67-43-6

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