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Calcium ionophore IV

Selectophore™, function tested

Synonym(s):

N,N-Dicyclohexyl-N′,N′-dioctadecyl-3-oxapentanediamide, N,N-Dicyclohexyl-N′,N′-dioctadecyl-diglycolic diamide, ETH 5234

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About This Item

Empirical Formula (Hill Notation):
C52H100N2O3
CAS Number:
126572-74-5
Molecular Weight:
801.36
MDL number:
MFCD00213934
UNSPSC Code:
26111700
PubChem Substance ID:
329752117
NACRES:
NB.61

grade

for ion-selective electrodes

Quality Level

200

product line

Selectophore™

quality

function tested

mp

50-53 °C

SMILES string

CCCCCCCCCCCCCCCCCCN(CCCCCCCCCCCCCCCCCC)C(=O)COCC(=O)N(C1CCCCC1)C2CCCCC2

InChI

1S/C52H100N2O3/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-31-39-45-53(46-40-32-30-28-26-24-22-20-18-16-14-12-10-8-6-4-2)51(55)47-57-48-52(56)54(49-41-35-33-36-42-49)50-43-37-34-38-44-50/h49-50H,3-48H2,1-2H3

InChI key

CLLKVTAGSOWKHA-UHFFFAOYSA-N

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General description

Visit our Sensor Applications portal to learn more.

Application

Selected application examples
Calcium ionophore IV (ETH 5234) was used in preparing membrane for the pseudoreference electrode in tetrahydrofuran, in a study to demonstrate electrochemical sample matrix elimination for trace level potentiometric detection.
Calcium ionophore IV may be used in the preparation of Ca2+-selective membrane utilizing AlGaN/GaN transistors for potentiometric calcium ion detection.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Other Notes

Extremely lipophilic Ca2+-selective ionophore for chemical sensors of long lifetime; it induces selectivities for Ca over Mg, Na and K of 104, 106, and 108, respectively.

Legal Information

Selectophore is a trademark of Merck KGaA, Darmstadt, Germany

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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Certificates of Analysis (COA)

Lot/Batch Number
061386/1
61386/1

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Sigma-Aldrich

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Lowering the Detection Limit of Solvent Polymeric Ion-Selective Membrane Electrodes. 2. Influence of Composition of Sample and Internal Electrolyte Solution
Sokalski, T.; et al.
Analytical Chemistry, 71(6), 1210-1214 (1999)
Jingwei Zhu et al.
Analytical chemistry, 82(1), 436-440 (2009-12-04)
A novel magnesium-selective ion-channel mimetic sensor based on a well-known calcium ionophore, ETH 5234, was demonstrated. Due to different stoichiometry of the ionophore with Mg(2+) and Ca(2+), the sensor exhibits high selectivity to Mg(2+) by controlling ionophore concentration on the
Mohsen Asadnia et al.
Analytica chimica acta, 987, 105-110 (2017-09-17)
We demonstrate highly selective and sensitive potentiometric ion sensors for calcium ion detection, operated without the use of a reference electrode. The sensors consist of AlGaN/GaN heterostructure-based transistor devices with chemical functionalisation of the gate area using poly (vinylchloride)-based (PVC)
Karin Y Chumbimuni-Torres et al.
Analytical chemistry, 80(15), 6114-6118 (2008-06-24)
Potentiometric sensors are today sufficiently well understood and optimized to reach ultratrace level (subnanomolar) detection limits for numerous ions. In many cases of practical relevance, however, a high electrolyte background hampers the attainable detection limits. A particularly difficult sample matrix
P. Gehrig et al.
Chimia, 43, 377-377 (1989)

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