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Merck
CN

27088

Chromoionophore III

Selectophore™

Synonym(s):

9-(Diethylamino)-5-[(2-octyldecyl)imino]benzo[a]phenoxazine, ETH 5350

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About This Item

Empirical Formula (Hill Notation):
C38H55N3O
CAS Number:
149683-18-1
Molecular Weight:
569.86
UNSPSC Code:
26111700
NACRES:
NB.61
PubChem Substance ID:
329752973
MDL number:
MFCD00213937
Beilstein/REAXYS Number:
5462368

Key Documents

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InChI

1S/C38H55N3O/c1-5-9-11-13-15-17-21-30(22-18-16-14-12-10-6-2)29-39-35-28-37-38(33-24-20-19-23-32(33)35)40-34-26-25-31(27-36(34)42-37)41(7-3)8-4/h19-20,23-28,30H,5-18,21-22,29H2,1-4H3/b39-35+

SMILES string

CCCCCCCCC(CCCCCCCC)C\N=C1/C=C2Oc3cc(ccc3N=C2c4ccccc14)N(CC)CC

InChI key

ICVAQSQRYBGWQH-IGIMMJHKSA-N

product line

Selectophore™

form

solid

Quality Level

200

Related Categories

General description

Chromoionophore III (ETH 5350) is a pH sensitive dye, and is ratiometric that is the fluorescence spectrum has two peaks, and the ratio between these peaks changes according to the changing pH levels.
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Application

Selected application examples
Assay of Na+ activity with solvent polymeric optode membrane prepared from ETH 5350 and sodium ionophore V; Assay of ammonia with solvent polymeric optode membranes based on ETH 5350 and valinomycin (potassium ionophore I)
ETH 5350 was used for the fabrication of optode membranes, which are sodium selective, used in order to optically determine sodium in pH-buffered human blood plasma.

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

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

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Magnetic microdrill as a modulated fluorescent pH sensor.
McNaughton
Journal of magnetism and magnetic materials, 293 (1), 696-701 (2005)
Characterization of sodium-selective optode membranes based on neutral ionophores and assay of sodium in plasma.
Seiler K
Clinical Chemistry, 37 (8), 1350-1355 (1991)
A A Galyean et al.
The Analyst, 143(2), 458-465 (2017-12-12)
Nanosensors present a biological monitoring method that is biocompatible, reversible, and nano-scale, and they offer many advantages over traditional organic indicators. Typical ionophore-based nanosensors incorporate nile-blue derivative pH indicators but suffer from photobleaching while quantum dot alternatives pose a potential

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