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Diethylenetriaminepentaacetic acid

SIGMA/32319 - suitable for suitability for complexometry, ≥99.0%

Synonym: (Carboxymethylimino)bis(ethylenenitrilo)tetraacetic acid; N,N-Bis(2-[bis(carboxymethyl)amino]ethyl)glycine; DETAPAC; DTPA; Penta(carboxymethyl)diethylenetriamine; Pentetic acid

CAS Number: 67-43-6
Empirical Formula (Hill Notation): C14H23N3O10
Molecular Weight: 393.35
EC Number: 200-652-8
MDL Number: MFCD00004289
Linear Formula: [(HOOCCH2)2NCH2CH2]2NCH2COOH
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-32319-100G-F 100 g
 $0.00
1/EA
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45-32319-500G-F 500 g
 $0.00
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anion traces chloride (Cl-): ≤1000 mg/kg
  sulfate (SO42-): ≤200 mg/kg
assay ≥99.0%
  ≥99.0% (KT)
cation traces Ca: ≤10 mg/kg
  Cd: ≤5 mg/kg
  Co: ≤5 mg/kg
  Cr: ≤5 mg/kg
  Cu: ≤5 mg/kg
  Fe: ≤5 mg/kg
  K: ≤10 mg/kg
  Mg: ≤5 mg/kg
  Mn: ≤5 mg/kg
  Na: ≤500 mg/kg
  Ni: ≤5 mg/kg
  Pb: ≤5 mg/kg
  Zn: ≤5 mg/kg
functional group amine
  carboxylic acid
ign. residue ≤0.05% (as SO4)
InChI 1S/C14H23N3O10/c18-10(19)5-15(1-3-16(6-11(20)21)7-12(22)23)2-4-17(8-13(24)25)9-14(26)27/h1-9H2,(H,18,19)(H,20,21)(H,22,23)(H,24,25)(H,26,27)
InChI key QPCDCPDFJACHGM-UHFFFAOYSA-N
loss ≤0.1% loss on drying, 20°C, HV
mp 219-220 °C (lit.)
Quality Level 100 
SMILES string OC(=O)CN(CCN(CC(O)=O)CC(O)=O)CCN(CC(O)=O)CC(O)=O
suitability suitable for suitability for complexometry
Application:
  • Grafting nanocellulose with diethylenetriaminepentaacetic acid: Development of a novel paper additive for enhancing recycled OCC pulp fibers by functionalizing nanocellulose with DTPA (Li et al., 2022 ).
  • Controlling multivalency and multimodality: Study on up to pentamodal dendritic platforms based on DTPA cores, illustrating DTPA′s role in multivalency and drug delivery systems (Pulido et al., 2014 ).
  • Adsorption of Hg (II) ions by DTPA-modified cellulose: Exploration of a DTPA-modified cellulose adsorbent for removing mercury ions from aqueous solutions (Li et al., 2019 ).
  • DTPA-functionalized multi-walled carbon nanotubes/titanium oxide-PVDF nanofiber membrane: Study on the effective separation of oil/water mixtures using a DTPA-functionalized membrane (Venkatesh et al., 2021 ).
General description: Visit our Titration Center  to learn more.
Other Notes: Complexing agent for the chelation of iron in solution.
Purity ≥99.0% (KT); ≥99.0%
mp 219-220 °C (lit.)
UNSPSC 41116105

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