2,8-QUINOLINEDIOL
2,8-Quinolinediol
CAS: 15450-76-7
Molecular Formula: C9H7NO2
2,8-QUINOLINEDIOL - Names and Identifiers
| Name | 2,8-Quinolinediol |
| Synonyms | NSC 108383 2,8-Quinolinediol 2,8-QUINOLINEDIOL QUINOLINE-2,8-DIOL 8-Hydroxycabostyril 8-Hydroxycarbostyryl 8-HYDROXYCARBOSTYRIL 8-Hydroxycarbostyril 2,8-DIHYDROQUINOLINE 2,8-DIHYDROXY-CHINOLIN Carbostyril, 8-hydroxy- 2,8-Dihydroxyquinoleine 8-hydroxyquinolin-2(1H)-one 2(1H)-Quinolinone, 8-hydroxy- Brexpiprazole Impurity 18, 8-hydroxyquinolin-2(1H)-one |
| CAS | 15450-76-7 |
| EINECS | 604-962-8 |
| InChI | InChI=1/C9H7NO2/c11-7-3-1-2-6-4-5-8(12)10-9(6)7/h1-5,11H,(H,10,12) |
2,8-QUINOLINEDIOL - Physico-chemical Properties
| Molecular Formula | C9H7NO2 |
| Molar Mass | 161.16 |
| Density | 1.337±0.06 g/cm3(Predicted) |
| Melting Point | ~290 °C (dec.) |
| Boling Point | 403.2±45.0 °C(Predicted) |
| Flash Point | 197.6°C |
| Solubility | DMSO (Slightly), Methanol (Slightly, Heated) |
| Vapor Presure | 4.46E-07mmHg at 25°C |
| Appearance | Bright brown powder |
| Color | Dark Reddish Brown |
| Maximum wavelength(λmax) | ['335nm(EtOH)(lit.)'] |
| BRN | 472906 |
| pKa | 8.85±0.20(Predicted) |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.639 |
| MDL | MFCD00216696 |
2,8-QUINOLINEDIOL - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R36/37/38 - Irritating to eyes, respiratory system and skin. R36/38 - Irritating to eyes and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36 - Wear suitable protective clothing. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
2,8-QUINOLINEDIOL - Reference Information
| application | 2,8-quinoline diol has excellent properties in glass transition temperature, film formation quality, stability, carrier mobility, etc. In addition, it is also an electroluminescent material and an excellent electron transporter. |
| Preparation | The solution of quinolin-8-ol-1-oxide (20g, 124 mmol) in acetic anhydride (200 ml) was stirred at 90°C for 5 hours. The reaction mixture is then poured into the water/ice mixture (1.5L) and made neutral by adding concubines. aq. The precipitate formed is collected by filtration and washed with water. The crude product was suspended in propanol and purified with petroleum ether to obtain 2-oxo-1, 2-dihydroquinoline-8-acetate. 2-oxo-1, 2-dihydroquinoline-8-acetate is heated in a concentrated solution. aq. Soak with hydrochloric acid (200ml) at 90°C for 4 hours. The reaction mixture was poured into ice water (400ml), the precipitate formed was collected by filtration and washed with water. The target compound 2,8-quinoline diol (14.1g,70%) was obtained by recrystallization of propane -2-alcohol/petroleum ether. |
Last Update：2024-04-10 22:29:15
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