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319945

Sigma-Aldrich

trans-1,2-Diaminocyclohexane-N,N,N′,N′-tetraacetic acid monohydrate

ACS reagent, for complexometry, 98%

Synonym(s):

1,2-Cyclohexanedinitrilotetraacetic acid, Chel™-CD, DCTA

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About This Item

Empirical Formula (Hill Notation):
C14H22N2O8 · H2O
CAS Number:
125572-95-4
Molecular Weight:
364.35
Beilstein:
3222748
EC Number:
236-308-9
MDL number:
MFCD00149243
UNSPSC Code:
12352106
PubChem Substance ID:
24859201
NACRES:
NA.21
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grade

ACS reagent
for complexometry

Quality Level

200

Assay

97.5-100.5%
98%

form

powder

ign. residue

≤0.2%

mp

213-216 °C (lit.)

cation traces

Fe: ≤0.005%
heavy metals (as Pb): ≤0.001%

functional group

amine
carboxylic acid

SMILES string

[H]O[H].OC(=O)CN(CC(O)=O)[C@@H]1CCCC[C@H]1N(CC(O)=O)CC(O)=O

InChI

1S/C14H22N2O8.H2O/c17-11(18)5-15(6-12(19)20)9-3-1-2-4-10(9)16(7-13(21)22)8-14(23)24;/h9-10H,1-8H2,(H,17,18)(H,19,20)(H,21,22)(H,23,24);1H2/t9-,10-;/m1./s1

InChI key

VASZYFIKPKYGNC-DHTOPLTISA-N

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Application

trans-1,2-Diaminocyclohexane-N,N,N′,N′-tetraacetic acid monohydrate is a multidentate ligand{1-6} that may be used as a chelating agent in the preparation of metal-chelate complexes.[1][2]
Ligand[3] used to prepare lanthanide shift reagents.[4]

Legal Information

Chel is a trademark of Ciba-Geigy AG

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H319,H332

Hazard Classifications

Acute Tox. 4 Inhalation - Eye Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCX0329
MKCW0079
0000286313
0000191952
0000191952

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Protonation constants of 1-hydroxyethylidene-1, 1-diphosphonic acid, diethylenetriamino-N, N, N?, N ?, N ?-penta-acetic trans-1, 2-diaminocyclohexane-N, N, N?, N?-tetra-acetic acid.
Mioduski T.
Talanta, 27(3), 299-303 (1980)
Permeation Liquid Membrane Metal Transport: Studies of Complex Stoichiometries and Reactions in Cu (II) Extraction with the Mixture 22DD? Laurate in Toluene/Phenylhexane.
Guyon F, et al.
Analytical Chemistry, 72(6), 1328-1333 (2000)
Radiochim. Acta, 61, 213-213 (1993)
Monoclonal antibodies that recognize minimal differences in the three-dimensional structures of metal? chelate complexes.
Jones RM, et al.
Bioconjugate Chemistry, 13(3), 408-415 (2002)
Use of Lanthanide Shift Reagents with 31P FT-NMR Spectroscopy To Analyze Concentrated Lake-Water Samples.
M A Nanny et al.
Environmental science & technology, 28(8), 1521-1527 (1994-08-01)
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