5662-03-3
5662-03-3
Chemical Structure
Quinophthalone
- CAS No.: 5662-03-3
- Formula:C18H11NO2
- Molecular Weight:273.29
InChIKey: NRANXTWANPHZAU-UHFFFAOYSA-N
SMILES: O=C1/C(C(C2=C1C=CC=C2)=O)=C3NC4=C(C=CC=C4)C=C/3
Biological Activity: 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].
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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. | |||||||||||||||||||||
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References
- [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. [Content Brief]
- [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. [Content Brief]
