Ferric Sodium Diethylenetriaminepentaacetate CAS#12389-75-2
Ferric sodium diethylenetriaminepentaacetate, also known as DTPA-FeNa, is a highly efficient and stable iron chelate complex. It has the CAS number 12389-75-2, a chemical formula of C₁₄H₁₉FeN₃NaO₁₀, and a molecular weight of 468.15.
DTPA-FeNa appears as a crystalline powder with a color ranging from pale yellowish-brown to dark red, while high-purity products are typically yellow. It is readily soluble in water, with a solubility of approximately 113 g/L at 30°C, slightly soluble in alcohols, and virtually insoluble in other organic solvents.
Due to its efficient and stable chelating properties, DTPA-FeNa is widely used in various fields, including agriculture, medicine, and industry.
Sodium hydrogen ferric DTPA Chemical Properties
| English Name | Sodium hydrogen ferric DTPA |
| English Synonyms | diethylenetriaminepentaacetic acid ferric-sodium complexFerrate(2-), [rel-[N(R)]-N-[2-[bis[(carboxy-. kapp a.O)methyl]amino-.kappa.N]ethyl]-N-[2-[(S)-[(carboxy-. kappa.O)methyl](carboxymethyl)amino-. kappa.N ethyllglycinato(5-)-. kappa.N,.kappa.O]-, sodium hydrogen (1:1:1), (PB-7-13-12564)-Sodium hydrogen ferri c diethylenetriaminepentaacetate;sodium hydrogen ferric dtpa;sodium hydrogen [N,N-bis[2-[bis(carboxym ethyl)aminolethyl]glycinato(5-)]ferrate(2-);Ferrate(2-), rel-N(R)-N-2-bis(carboxy-.kappa.O)methylamino-.ka ppa.Nethyl-N-2-(S)-(carboxy-.kappa.O)methyl(carboxymethyl)amino-.kappa.Nethylglycinato(5-)-.kappa.N,. kappa.O-, sodium hydrogen, (PB-7-13-12564)-[N,N-bis[2-[bis(carboxymethyl)aminolethylglycinatol-, sodium hydrogen, (PB-7-13-12564)-Ferrate;[n,n-bis[2-[bis(carboxymethyl)aminolethyl]glycinatol-ferrate sodiu m |
| CAS Number | 12389-75-2 |
| Molecular Formula | C14H19FeN3NaO10 |
| Molecular Weight | 468.15 |
| EINECS Number | 235-627-0 |
| density | 1.607[at 20℃] |
| Water Solubility | 113g/L at 30℃ |
| LogP | -11.9 |
| EPA Substance Registry System | Ferrate(2-), [rel-[N(R)]-N-[2-[bis[(carboxy-.kappa.O)methyl]amino-.kappa.N]ethyl]-N-[2-[(S)-[(carboxy-.kappa.O)methyl](carboxymethyl)amino-.kappa.N]ethyl]glycinato(5-)-.kappa.N,.kappa.O]-, sodium hydrogen (1:1:1), (PB-7-13-12564)- (12389-75-2) |
Key Application Areas
Agriculture: DTPA-FeNa is used as a highly efficient iron micronutrient fertilizer for soil application, hydroponic systems, and foliar spraying. It effectively helps correct iron-deficiency chlorosis and improves iron uptake efficiency, making it widely used in horticulture and the cultivation of cash crops.
Pharmaceuticals: DTPA-FeNa serves as a raw material for iron supplements used in the treatment of iron-deficiency anemia. Its stable chelated structure can significantly improve iron bioavailability while helping reduce gastrointestinal irritation.
Industry: DTPA-FeNa is used as a bleaching aid in papermaking to improve pulp brightness and help inhibit yellowing. It also functions as a redox initiator in polymer synthesis and as a metal-ion chelating agent in metal separation and catalytic reaction systems.




