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Calcium ionophore IV

Selectophore™, function tested

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Synonym(s):
N,N-Dicyclohexyl-N′,N′-dioctadecyl-3-oxapentanediamide, N,N-Dicyclohexyl-N′,N′-dioctadecyl-diglycolic diamide, ETH 5234
Empirical Formula (Hill Notation):
C52H100N2O3
CAS Number:
126572-74-5
Molecular Weight:
801.36
MDL number:
MFCD00213934
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

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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 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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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
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
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)
Sabina W Jaros et al.
Molecules (Basel, Switzerland), 25(9) (2020-05-07)
The present study reports the synthesis, characterization, and crystal structure of a novel bioactive metal-organic framework, [Ag4(µ-PTA)2(µ3-PTA)2(µ4-pma)(H2O)2]n·6nH2O (bioMOF 1), which was assembled from silver(I) oxide, 1,3,5-triaza-7-phosphaadamantane (PTA), and pyromellitic acid (H4pma). This product was isolated as a stable microcrystalline solid
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