| Bioactivity | 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]. |
| CAS | 5662-03-3 |
| Formula | C18H11NO2 |
| Molar Mass | 273.29 |
| Appearance | 固体 |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | 4°C, protect from light *In solvent : -80°C, 6 months; -20°C, 1 month (protect from light) |
| Reference | [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. |
Quinophthalone
CAS: 5662-03-3 F: C18H11NO2 W: 273.29
Quinophthalone is a dye with distinctive greenish yellow color. Quinophthalone is used as coloring agents for various ma
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