| Identification | Back Directory | [Name]
Nsc367957 | [CAS]
5662-03-3 | [Synonyms]
Nsc367957
2-(1H-quinolin-2-ylidene)indene-1,3-dione
1H-Indene-1,3(2H)-dione, 2-(2(1H)-quinolinylidene)- | [Molecular Formula]
C18H11NO2 | [MDL Number]
MFCD00047569 | [MOL File]
5662-03-3.mol | [Molecular Weight]
273.29 |
| Chemical Properties | Back Directory | [Melting point ]
241-242 °C(Solv: ethanol (64-17-5)) | [Boiling point ]
453.5±45.0 °C(Predicted) | [density ]
1.366±0.06 g/cm3(Predicted) | [form ]
Solid | [pka]
-0.73±0.20(Predicted) |
| Hazard Information | Back Directory | [Uses]
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]. | [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. DOI:10.1038/s41598-017-04114-9
[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. DOI:10.1111/j.1600-0536.1984.tb00058.x |
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