Nitrilotriacetic acid

Nitrilotriacetic acid
Skeletal formula of nitrilotriacetic acid
Names
Preferred IUPAC name
2,2′,2′′-Nitrilotriacetic acid[3]
Other names
N,N-Bis(carboxymethyl)glycine
2-[Bis(carboxymethyl)amino]acetic acid[1]
Triglycine[2] Trilon
Identifiers
3D model (JSmol)
1710776
ChEBI
ChemSpider
DrugBank
ECHA InfoCard 100.004.869 Edit this at Wikidata
EC Number
  • 205-355-7
3726
KEGG
MeSH Nitrilotriacetic+Acid
RTECS number
  • AJ0175000
UNII
UN number 2811
  • InChI=1S/C6H9NO6/c8-4(9)1-7(2-5(10)11)3-6(12)13/h1-3H2,(H,8,9)(H,10,11)(H,12,13) checkY
    Key: MGFYIUFZLHCRTH-UHFFFAOYSA-N checkY
  • O=C(O)CN(CC(=O)O)CC(=O)O
Properties
C6H9NO6
Molar mass 191.14 [4]
Appearance White crystals
Melting point 246[4] °C (475 °F; 519 K)
Insoluble. <0.01 g/100 mL at 23°C [4]
Thermochemistry
−1.3130–−1.3108 MJ mol−1
Hazards
GHS labelling:
GHS07: Exclamation mark GHS08: Health hazard
Warning
H302, H319, H351
P281, P305+P351+P338
Flash point 100 °C (212 °F; 373 K)
Lethal dose or concentration (LD, LC):
1.1 g kg−1 (oral, rat)
Related compounds
Related alkanoic acids
Related compounds
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

Nitrilotriacetic acid (NTA) is the aminopolycarboxylic acid with the formula N(CH2CO2H)3. It is a colourless solid. Its conjugate base nitrilotriacetate is used as a chelating agent for Ca2+, Co2+, Cu2+, and Fe3+.[5]

  1. ^ "Nitrilotriacetic Acid - Compound Summary". PubChem Compound. USA: National Center for Biotechnology Information. 26 March 2005. Identification. Retrieved 13 July 2012.
  2. ^ Nitrilotriacetic acid
  3. ^ Favre, Henri A.; Powell, Warren H. (2014). Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. pp. 21, 679. doi:10.1039/9781849733069. ISBN 978-0-85404-182-4.
  4. ^ a b c Cite error: The named reference ChemBK was invoked but never defined (see the help page).
  5. ^ Nitrilotriacetic Acid and Its Salts, International Agency for Research on Cancer