您好，欢迎来到魔法化学网！
| CAS号 : | 2426-02-0 |
精确质量 : | 152.04700 |
| 分子式 : | C8H8O3 |
logP : | 0.94040 |
| 分子量 : | 152.14700 |
PSA : | 43.37000 |
四氢苯酐 | |
4,5,6,7-tetrahydro-2-benzofuran-1,3-dione | |
2426-02-0 | |
C8H8O3 | |
152.14700 | |
43.37000 | |
0.94040 | |
152.04700 |
|
白色至淡黄色粉末
|
|
|
158ºC
|
|
|
302.3ºC at 760 mmHg
|
|
|
69-73 °C(lit.)
|
|
|
1.29 g/cm3
|
|
|
REACTS
|
|
|
Stable at room temperature in closed containers under normal storage and handling conditions.
|
|
|
2-8ºC
|
GHS05, GHS08 | |
危险 | |
H317; H318; H334; H412 | |
P261; P273; P280; P305 + P351 + P338; P342 + P311 | |
|
3
|
|
|
8
|
|
|
S26-S36-S61-S37/39-S24-S22
|
|
|
III
|
|
|
2698
|
|
|
Xn
|
|
|
R41; R42/43; R52/53
|
|
|
2932999099
|
|
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>其制备方法是在反应器内加入1,2,3,6-四氢邻苯二甲酸酐和五氧化二磷混合,加热控制反应温度200℃,反应过程中有低沸物蒸出,反应结束后进行减压蒸馏,收集144～150℃/600Pa的馏分即为3,4,5,6-四氢邻苯二甲酸酐。</p> | |
<p>用于农药，除草剂，环氧树脂固化剂等。</p> |
