Dibenzo(a,h)quinoxaline
- CAS No.
- 217-68-5
- Chemical Name:
- Dibenzo(a,h)quinoxaline
- Synonyms
- NSC 74769;5,6:7,8-Dibenzoquinoxaline;phenanthro[9,10-b]pyrazine;1,4-diazatriphenylene Dibenzo(f,h)quinoxaline
- CBNumber:
- CB8498575
- Molecular Formula:
- C16H10N2
- Molecular Weight:
- 230.26
- MDL Number:
- MFCD00114919
- MOL File:
- 217-68-5.mol
- MSDS File:
- SDS
| Melting point | 180℃ |
|---|---|
| Boiling point | 454.4±18.0 °C(Predicted) |
| Density | 1.291±0.06 g/cm3 (20 ºC 760 Torr) |
| storage temp. | Sealed in dry,Room Temperature |
| pka | 0.59±0.30(Predicted) |
| Appearance | Light brown to brown Solid |
| FDA UNII | EKI8XZ525W |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H319-H315-H335 |
| Precautionary statements | P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-36 |
| WGK Germany | 3 |
Dibenzo(a,h)quinoxaline price More Price(22)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Activate Scientific | AS48112 | Dibenzo[f,h]quinoxaline 99% | 217-68-5 | 1g | $23 | 2026-06-04 | Buy |
| Activate Scientific | AS48112 | Dibenzo[f,h]quinoxaline 99% | 217-68-5 | 5g | $59 | 2026-06-04 | Buy |
| Activate Scientific | AS48112 | Dibenzo[f,h]quinoxaline 99% | 217-68-5 | 25g | $264 | 2026-06-04 | Buy |
| aablocks | AA007P3Y | Dibenzo[f,h]quinoxaline ≥97% | 217-68-5 | 250mg | $10 | 2026-05-28 | Buy |
| aablocks | AA007P3Y | Dibenzo[f,h]quinoxaline ≥97% | 217-68-5 | 1g | $11 | 2026-05-28 | Buy |
Dibenzo(a,h)quinoxaline Chemical Properties,Uses,Production
Chemical Properties
light yellow powder
Synthesis
107-15-3
84-11-7
217-68-5
Under nitrogen protection, 18.6 g (0.31 mol) of ethylenediamine was dissolved with 55.0 g (0.26 mol) of 9,10-phenanthrenequinone in 1000 mL of toluene to form a red suspension. A manifold was installed and the reaction mixture was heated to reflux for 24 hours. Upon completion of the reaction, 50.0 g of manganese dioxide was added to the resulting brown suspension, and heating and refluxing was continued until thin layer chromatography (TLC) detection showed complete disappearance of the intermediate. The reaction mixture was filtered while hot and the solid residue was washed with 200 mL of toluene. The filtrates were combined and concentrated under reduced pressure, and the resulting solid was dried under vacuum to give 58.0 g of dibenzo[f,h]quinoxaline as a pale yellow solid in 97% yield.
References
[1] Patent: CN101970448, 2016, B. Location in patent: Paragraph 0381; 0382
[2] Recueil des Travaux Chimiques des Pays-Bas-Journal of the Royal Netherlands, 1996, vol. 115, # 5, p. 275 - 285
[3] Chemische Berichte, 1886, vol. 19, p. 112
[4] Chemische Berichte, 1887, vol. 20, p. 268
[5] Journal of the Chemical Society, 1889, vol. 55, p. 98
Dibenzo(a,h)quinoxaline Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Tianjin Derchemist Science & Technology Co., Ltd. | 22-58627059 13920586291 | zdcomcon@126.com | China | 4094 | 50 |
| Shijiazhuang Sdyano Fine Chemical Co., Ltd. | 0311-89250318 031166536426; | master@sjzsdyn.com | China | 3491 | 58 |
| Shanghai YuanYe Biotechnology Co., Ltd. | 15026964105 | 2881489226@qq.com | China | 89667 | 60 |
| Zhengzhou AnMusi Chemical Products Co., Ltd. | 15981811963 18737195735 | 2370407954@qq.com | China | 1979 | 55 |
| Zhengzhou Acme Chemical Co., Ltd. | 0371-0371-55629727 13323845623 | 2885676761@qq.com | China | 9948 | 58 |
| Amadis Chemical Company Limited | 571-89925085 | sales@amadischem.com | China | 131885 | 58 |
| Beyond Pharmaceutical Co., Ltd | 0571-81953185 +86-15381198709 | jasonyao@bydpharma.com | China | 852 | 60 |
| Aikon International Limited | 025-66061636 19370895928 | qqyang@aikonchem.com | China | 15810 | 58 |
| Zhengzhou Ruke Biological Co., Ltd. | 15981811963 | 1410472904@qq.com | China | 5824 | 58 |
| Shanghai Jizhi Biochemical Technology Co. Ltd. | 021-4009004166/18616739031 18616739031 | 3007523370@qq.com | China | 40000 | 58 |
