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330507

Sigma-Aldrich

Ethylenediaminetetraacetic acid diammonium salt hydrate

97%

Synonym(s):

Diammonium EDTA monohydrate

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25 G
$40.71
100 G
$123.00

About This Item

Linear Formula:
HO2CCH2N(CH2CO2NH4)CH2CH2N(CH2CO2NH4)CH2CO2H·xH2O
CAS Number:
Molecular Weight:
326.30 (anhydrous basis)
EC Number:
MDL number:
UNSPSC Code:
12352116
PubChem Substance ID:
NACRES:
NA.22

$40.71

List Price$42.90Save 5%

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Quality Level

assay

97%

form

solid

mp

218 °C (dec.) (lit.)

functional group

amine
carboxylic acid

SMILES string

N.N.O.OC(=O)CN(CCN(CC(O)=O)CC(O)=O)CC(O)=O

InChI

1S/C10H16N2O8.2H3N.H2O/c13-7(14)3-11(4-8(15)16)1-2-12(5-9(17)18)6-10(19)20;;;/h1-6H2,(H,13,14)(H,15,16)(H,17,18)(H,19,20);2*1H3;1H2

Inchi Key

WRSUMHYBOYWMTD-UHFFFAOYSA-N

General description

Ethylenediaminetetraacetic acid diammonium salt hydrate, also known as EDTA diammonium salt hydrate. It is a derivative of ethylenediaminetetraacetic acid (EDTA) and is commonly used as a chelating agent in various applications due to its ability to bind to various metal ions and form stable complexes.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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Atsushi Hirano et al.
ACS nano, 13(2), 1805-1816 (2019-01-27)
Nanomaterials introduced into biological systems are immediately coated by proteins in vivo. They induce oxidative stress on adsorbed proteins and hence alter the protein structures, which determines the fate pathways and biological impacts of nanomaterials. Carbon nanotubes (CNTs) have been

Questions

  1. The Cas number 304675-80-7 for diammonium EDTA indicates only one water of hydration, but when we prepared a solution, the titrated strength was much less suggesting a higher number of waters of hydration. What is the maximum value of X in xH2O?

    1 answer
    1. The CAS number is associated with the 'hydrate' form of this compound. The water content may be variable. The maximum water content allowable for this product is 5%. The water content is lot specific and reported in the product Certificate of Analysis. Please see the link below to access a sample or lot specific Certificate:
      https://www.sigmaaldrich.com/product/aldrich/330507#product-documentation
      Please see the link below to review the PubChem listing for this CAS number:
      https://pubchem.ncbi.nlm.nih.gov/compound/71311375

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