Quinophthalone

Quinophthalone is a dye with distinctive greenish yellow color. Quinophthalone is used as coloring agents for various materials. Quinophthalone is a strong sensitizer in guinea pigs, and its threshold concentration for induction and challenge is 10 ppm[1][2].

Product Specifications

CAS Number

[5662-03-3]

UNSPSC

12171500

Target

Fluorescent Dye

Type

Dye Reagents

Related Pathways

Others

Field of Research

Inflammation/Immunology

Assay Protocol

https://www.medchemexpress.com/quinophthalone.html

Purity

99.85

Smiles

O=C1/C(C(C2=C1C=CC=C2)=O)=C3NC4=C(C=CC=C4)C=C/3

Molecular Formula

C18H11NO2

Molecular Weight

273.29

References & Citations

[1]Gi Rim Han, et al. Shedding new light on an old molecule: quinophthalone displays uncommon N-to-O excited state intramolecular proton transfer (ESIPT) between photobases. Sci Rep. 2017 Jun 20;7 (1) :3863.|[2]Y Sato, et al. D&C nos. 10 and 11: chemical composition analysis and delayed contact hypersensitivity testing in the guinea pig. Contact Dermatitis. 1984 Jan;10 (1) :30-8.