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72560

Sigma-Aldrich

Nitrilotriacetic acid

ACS reagent, ≥99.0%

Synonym(s):

N,N-Bis(carboxymethyl)glycine, NTA, Tris(carboxymethyl)amine

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About This Item

Linear Formula:
N(CH2COOH)3
CAS Number:
139-13-9
Molecular Weight:
191.14
Beilstein/REAXYS Number:
1710776
EC Number:
205-355-7
MDL number:
MFCD00004287
UNSPSC Code:
12352100
PubChem Substance ID:
57652425
NACRES:
NA.21

grade

ACS reagent

Quality Level

200

assay

≥99.0% (T)
≥99.0%

form

powder

ign. residue

≤0.1% (as SO4)

loss

≤0.1% loss on drying

mp

245 °C (dec.) (lit.)

anion traces

chloride (Cl-): ≤100 mg/kg

cation traces

Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤20 mg/kg
K: ≤50 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

SMILES string

OC(=O)CN(CC(O)=O)CC(O)=O

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)

InChI key

MGFYIUFZLHCRTH-UHFFFAOYSA-N

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Related Categories

Application

An excellent chelating agent.

pictograms

Exclamation markHealth hazard
GHS07,GHS08

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Carc. 2 - Eye Irrit. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 2

flash_point_f

212.0 °F - closed cup

flash_point_c

100 °C - closed cup

ppe

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges

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John I Njagi et al.
Journal of colloid and interface science, 421, 27-32 (2014-03-07)
We report for the first time that nitrilotriacetic acid (NTA) is an effective reductant for the preparation of stable dispersions of uniform gold nanoparticles. The method described is capable of generating stable sols with a metal concentration as high as
Eagleson M.
Concise Encyclopedia Chemistry, 253-253 (1994)
Syntheses and structures of bismuth (III) complexes with nitrilotriacetic acid, ethylenediaminetetraacetic acid, and diethylenetriaminepentaacetic acid.
Summers SP, et al.
Inorganic Chemistry, 33(1), 88-92 (1994)
Mike Strauss et al.
Journal of virology, 87(7), 3903-3914 (2013-02-01)
During infection, the binding of poliovirus to its cell surface receptor at 37°C triggers an expansion of the virus in which internal polypeptides that bind to membranes are externalized. Subsequently, in a poorly understood process, the viral RNA genome is
Li Jiang et al.
The Journal of pathology, 228(3), 366-377 (2012-08-07)
Exposure to asbestos is a risk for malignant mesothelioma (MM) in humans. Among the commercially used types of asbestos (chrysotile, crocidolite, and amosite), the carcinogenicity of chrysotile is not fully appreciated. Here, we show that all three asbestos types similarly
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