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Chromoionophore I

Selectophore™

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Synonym(s):
3-Octadecanoylimino-7-(diethylamino)-1,2-benzophenoxazine, 9-(Diethylamino)-5-(octadecanoylimino)-5H-benzo[a]phenoxazine, N-Octadecanoyl-Nile blue, ETH 5294
Empirical Formula (Hill Notation):
C38H53N3O2
CAS Number:
125829-24-5
Molecular Weight:
583.85
Beilstein:
3576427
MDL number:
MFCD00213935
UNSPSC Code:
26111700
PubChem Substance ID:
329752971
NACRES:
NB.61

product line

Selectophore™

Quality Level

200

form

solid

mp

91-93 °C (lit.)

fluorescence

λex 614 nm; λem 663 nm (protonated)

SMILES string

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

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+

InChI key

MYWBZQJIXVRCJC-JQJRJOTLSA-N

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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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Application

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

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Legal Information

Selectophore is a trademark of Merck KGaA, Darmstadt, Germany

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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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