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Merck
CN

27086

Chromoionophore I

Selectophore™

Synonym(s):

3-Octadecanoylimino-7-(diethylamino)-1,2-benzophenoxazine, 9-(Diethylamino)-5-(octadecanoylimino)-5H-benzo[a]phenoxazine, N-Octadecanoyl-Nile blue, ETH 5294

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About This Item

Empirical Formula (Hill Notation):
C38H53N3O2
CAS Number:
125829-24-5
Molecular Weight:
583.85
UNSPSC Code:
26111700
NACRES:
NB.61
PubChem Substance ID:
329752971
MDL number:
MFCD00213935
Beilstein/REAXYS Number:
3576427

Key Documents

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Product Name

Chromoionophore I, Selectophore™

InChI

1S/C38H53N3O2/c1-4-7-8-9-10-11-12-13-14-15-16-17-18-19-20-25-37(42)39-34-29-36-38(32-24-22-21-23-31(32)34)40-33-27-26-30(28-35(33)43-36)41(5-2)6-3/h21-24,26-29H,4-20,25H2,1-3H3/b39-34+

SMILES string

CCCCCCCCCCCCCCCCCC(=O)\N=C1/C=C2Oc3cc(ccc3N=C2c4ccccc14)N(CC)CC

InChI key

MYWBZQJIXVRCJC-JQJRJOTLSA-N

product line

Selectophore™

form

solid

mp

91-93 °C (lit.)

fluorescence

λex 614 nm; λem 663 nm (protonated)

Quality Level

200

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Application

Selected application examples
Assay of K+ and of Ca2+ activity with solvent polymeric optode membrane based on ETH 5294 and potassium ionophore I (valinomycin)
Chromoionophore I may be used for the test zone preparation in the multianalyte sensor, during environmental monitoring, using photographic digital camera.

General description

Chromoionophore I (ETH 5294, 3-octadecanoylimino-7-diethylamino-l,2-benzophenoxazine) is a H+-selective neutral chromoionophore, which is lipophilic in nature and is a highly basic dye molecule.
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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)

Lot/Batch Number
BCCN7379
BCCH1658
BCCB0112
BCBZ3147

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Anna Baranowska-Korczyc et al.
The Analyst, 145(16), 5594-5602 (2020-08-11)
Core-shell modified nanofiber mats were used as ion-selective membranes for the first time. Keeping the overall macroscopic size of the sensing element the same as for classical plasticized poly(vinyl chloride) membranes, herein the proposed nanofiber based systems resulted in ultrathin
Environmental monitoring using a conventional photographic digital camera for multianalyte disposable optical sensors.
Lapresta FA and Vallvey C.
Analytica Chimica Acta, 706 (2), 328-337 (2011)
Fatehy M Abdel-Haleem et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 201, 98-104 (2018-05-08)
Preparation of novel salicylate-selective optical sensors (bulk optodes) was performed and applied successfully for salicylate determination in pharmaceutical formulations, Aspirin® and Aspocid®. t-butyl calix[4]arene ionophore was incorporated in a plasticized poly (vinyl-chloride) membrane containing the chromoionophore ETH5294 (O1) or ETH7075
Design and characterization of a novel ammonium ion selective optical sensor based on neutral ionophores.
Seiler K
Analytical Sciences, 5 (5), 557-561 (1989)
L Lvova et al.
Analytica chimica acta, 988, 96-103 (2017-09-17)
A systematic study of a series of diaza-18-crown-6 8-hydroxyquinoline (DCHQ) chemosensors, devoted to Mg(II) ion detection, was performed. Functionalization of DCHQ by peripheral substituents allowed the development of novel all-solid-state optodes via inclusion inside PVC-based polymeric films. The influence on
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