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Merck
CN

21193

Calcium ionophore II

Selectophore™, function tested

Synonym(s):

N,N,N′,N′-Tetra[cyclohexyl]diglycolic acid diamide, N,N,N′,N′-Tetracyclohexyl-3-oxapentanediamide, ETH 129

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About This Item

Empirical Formula (Hill Notation):
C28H48N2O3
CAS Number:
74267-27-9
Molecular Weight:
460.69
UNSPSC Code:
26111700
NACRES:
NB.61
PubChem Substance ID:
329752116
MDL number:
MFCD00043337
Beilstein/REAXYS Number:
6491651

Key Documents

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InChI

1S/C28H48N2O3/c31-27(29(23-13-5-1-6-14-23)24-15-7-2-8-16-24)21-33-22-28(32)30(25-17-9-3-10-18-25)26-19-11-4-12-20-26/h23-26H,1-22H2

SMILES string

O=C(COCC(=O)N(C1CCCCC1)C2CCCCC2)N(C3CCCCC3)C4CCCCC4

InChI key

URAUKAJXWWFQSU-UHFFFAOYSA-N

description

for ion-selective electrodes

product line

Selectophore™

form

solid

quality

function tested

Quality Level

200

Related Categories

General description

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Application

Selected application examples
Calcium ionophore II (ETH 129) was used in preparing calcium selective minielectrodes which are used in determination of dissociation constant (Kd).
Lipophilic ionophore for Ca2+-selective electrodes with detection limit in the sub-nanomolar range. Extremely efficient carrier of Ca2+-ions; induces a selectivity in membranes for Ca2+ over Mg2+ by a factor of about 104.
Suitable for intracellular calcium measurements.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Legal Information

Selectophore is a trademark of Merck KGaA, Darmstadt, Germany

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
60824/2
AR060824/2
AR60824/2

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Xiaoxue Liu et al.
Mikrochimica acta, 187(9), 525-525 (2020-08-29)
Ultrathin metallic WS2 (M-WS2) nanosheets and semiconductive WS2 (S-WS2) nanosheets were exfoliated and for the first time employed as ion-to-electron transducing layer to construct an all-solid-state ion-selective electrode. Importantly, we found that the transducing efficiency of WS2 nanosheet-based solid-contact layer is
Patrick C Bradshaw et al.
BMC biochemistry, 7, 4-4 (2006-02-08)
Divalent cations are required for many essential functions of mitochondrial metabolism. Yet the transporters that mediate the flux of these molecules into and out of the mitochondrion remain largely unknown. Previous studies in yeast have led to the molecular identification
Y L Ma et al.
Journal of Tongji Medical University = Tong ji yi ke da xue xue bao, 12(2), 98-102 (1992-01-01)
A calcium ion-selective PVC membrane electrode based on neutral carrier n,n,n',n'-tetracyclohexyl-3-oxapetanediamide, using di-(2-ethylhexyl)phthalate as the plasticizer and potassium tetrakis (4-chlorophenyl) borate as the additive is reported in this paper. The ion selective membrane consists of 1 wt% of the Ca2+
Mariya V Kovaleva et al.
Journal of bioenergetics and biomembranes, 41(3), 239-249 (2009-07-18)
In this study we used tightly-coupled mitochondria from Yarrowia lipolytica and Dipodascus (Endomyces) magnusii yeasts, possessing a respiratory chain with the usual three points of energy conservation. High-amplitude swelling and collapse of the membrane potential were used as parameters for
G Prestipino et al.
Analytical biochemistry, 210(1), 119-122 (1993-04-01)
We have investigated the ability of the neutral ionophore ETH 129 to translocate Ca2+ across artificial and biological membranes. ETH 129 induces Ca2+ transport across planar lipid bilayer. The zero-current membrane potential in a gradient of Ca2+ concentration exhibits Nernst
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