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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:
1710776
EC Number:
205-355-7
MDL number:
MFCD00004287
UNSPSC Code:
12352100
PubChem Substance ID:
57652425
NACRES:
NA.21
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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

functional group

amine
carboxylic acid

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

Health hazardExclamation mark
GHS08,GHS07

Signal Word

Warning

Hazard Statements

H302,H319,H351

Hazard Classifications

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

212.0 °F - closed cup

Flash Point(C)

100 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
WXBF4360V
WXBF3339V
BCCK3596
BCCK3441
BCCJ2159

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Eagleson M.
Concise Encyclopedia Chemistry, 253-253 (1994)
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
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)
Hui Xu et al.
Biosensors & bioelectronics, 41, 90-95 (2012-09-11)
A label-free and highly sensitive impedimetric aptasensor was developed based on electropolymerized film for the determination of thrombin. The first step is the electrogeneration of a poly(pyrrole-nitrilotriacetic acid) (poly(pyrrole-NTA)) film onto the surface of electrodes followed by complexation of Cu(2+)
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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