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N9877

Sigma-Aldrich

Nitrilotriacetic acid

Sigma Grade, ≥99%

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Synonym(s):
N,N-Bis(carboxymethyl)glycine, NTA, Tris(carboxymethyl)amine
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:
12352106
PubChem Substance ID:
24897916
NACRES:
NA.31

grade

Sigma Grade

Quality Level

200

assay

≥99%

form

powder

reaction suitability

reagent type: reductant

pH

1.7-2.7 (23 °C, 10 g/L)

mp

245 °C (dec.) (lit.)

solubility

1 M NaOH: 100 mg/mL, clear to very slightly hazy, colorless to light yellow

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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Application

An excellent chelating agent.

pictograms

Health hazardExclamation mark
GHS08,GHS07

signalword

Warning

Hazard Classifications

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

wgk_germany

WGK 2

flash_point_f

212.0 °F

flash_point_c

100 °C

ppe

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Nitrilotriacetic acid trisodium salt monohydrate ≥98.0% (KT)

Sigma-Aldrich

72565

Nitrilotriacetic acid trisodium salt monohydrate

Nitrilotriacetic acid-d9 98 atom % D, 98% (CP)

Sigma-Aldrich

654914

Nitrilotriacetic acid-d9

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R L Anderson et al.
Critical reviews in toxicology, 15(1), 1-102 (1985-01-01)
This article provides a review of available information on the chemistry, environmental toxicology, and mammalian toxicology of nitrilotriacetic acid (NTA). The ability of NTA to chelate metal ions such as Mg++ and Ca++ into water soluble complexes makes NTA useful
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