您好，欢迎来到魔法化学网！
| CAS号 : | 91-19-0 |
精确质量 : | 130.05300 |
| 分子式 : | C8H6N2 |
logP : | 1.62980 |
| 分子量 : | 130.14700 |
PSA : | 25.78000 |
喹喔啉 | |
quinoxaline | |
91-19-0 | |
C8H6N2 | |
130.14700 | |
25.78000 | |
1.62980 | |
130.05300 |
|
1.6231 (20ºC)
|
|
|
黄色固体
|
|
|
209 °F
|
|
|
220-223 °C(lit.)
|
|
|
29-32 °C(lit.)
|
|
|
SOLUBLE
|
|
|
1.124 g/mL at 25 °C(lit.)
|
|
|
Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container.
|
|
VD1225000
|
|
|
29339990
|
|
|
3
|
|
|
S26-S36
|
|
|
Xi
|
|
|
R36/37/38
|
|
2933990090
|
|
2933990090. 其他仅含氮杂原子的杂环化合物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:6.5%. 普通关税:20.0% | |
2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
<p>由邻苯二酚与乙二胺反应，生成物再经脱氢制取。或由邻苯二胺与乙二醛经环合而得：在反应锅中加水，投入亚硫酸氢钠，搅拌，慢慢加入乙二醛，温度上升到75-80℃，析出白色结晶。继续搅拌10min，再加水及邻苯二胺，于75-80℃保温1h。冷却至50℃，用碳酸钠中和至pH=8，加热至60℃，静置后分去水层，即得含量80%的苯并吡嗪，收率90%。</p> | |
<p>用作有机合成试剂。用作抗结核药物吡嗪酰胺的中间体。</p> |
