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T7633

Sigma-Aldrich

Triethylenetetramine-N,N,N′,N′′,N′′′,N′′′-hexaacetic acid

for complexometry, ≥98.0%

Synonym(s):

TTHA

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About This Item

Linear Formula:
[-CH2N(CH2CO2H)CH2CH2N(CH2CO2H)2]2
CAS Number:
869-52-3
Molecular Weight:
494.45
Beilstein:
1811090
EC Number:
212-790-6
MDL number:
MFCD00004290
UNSPSC Code:
12352100
PubChem Substance ID:
57654699
NACRES:
NA.22

grade

for complexometry

Quality Level

200

Assay

≥98.0%

form

powder

mp

232-233 °C (lit.)

SMILES string

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

InChI

1S/C18H30N4O12/c23-13(24)7-19(3-5-21(9-15(27)28)10-16(29)30)1-2-20(8-14(25)26)4-6-22(11-17(31)32)12-18(33)34/h1-12H2,(H,23,24)(H,25,26)(H,27,28)(H,29,30)(H,31,32)(H,33,34)

InChI key

RAEOEMDZDMCHJA-UHFFFAOYSA-N

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Related Categories

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
0000376023
0000338939
0000342117
0000309285
0000376023

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Agnieszka Gawin et al.
Scientific reports, 10(1), 12470-12470 (2020-07-29)
Bacterial alginate initially consists of 1-4-linked β-D-mannuronic acid residues (M) which can be later epimerized to α-L-guluronic acid (G). The family of AlgE mannuronan C-5-epimerases from Azotobacter vinelandii has been extensively studied, and three genes putatively encoding AlgE-type epimerases have
E Heyduk et al.
Analytical biochemistry, 248(2), 216-227 (1997-06-01)
Lanthanide chelates have recently been shown to be extremely promising luminescence probes for distance measurements in biomolecules using luminescence resonance energy transfer measurements [P. R. Selvin, T. M. Rana, and J. E. Hearst (1994) J. Am. Chem. Soc. 116, 6029-6030;
R B Clarkson et al.
Magnetic resonance in medicine, 29(4), 521-527 (1993-04-01)
Electron Spin Echo Envelope Modulation (ESEEM) data are reported for three gadolinium (III) chelates, Gd-EDTA, Gd-DTPA, and Gd-TTHA, in frozen D2O/CH3OD glasses. This series includes Gd-DTPA, an MRI contrast agent that is in clinical use. Three-pulse electron spin echo modulation
M S Albert et al.
NMR in biomedicine, 6(1), 7-20 (1993-01-01)
Frequency shift/concentration calibration curves applicable to the use of shift reagents (SRs) for in vivo 23Na MRS studies can be obtained from experiments with whole blood. Here, they are reported for titrations of rat blood with the SRs DyTTHA3- and
E Preston et al.
NMR in biomedicine, 6(5), 339-344 (1993-09-01)
A sensitive radiotracer technique was used to measure transfer constants (Kis) for blood to brain diffusion of the MR contrast reagent gadolinium diethylenetriaminepentaacetate (GdDTPA2-) and the MR shift reagent dysprosium triethylenetetraminehexaacetate (DyTTHA3-) across the normal and the ischemically injured blood-brain
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