2H-1-Benzopyran-3(4H)-one
- 中文别名:苯并二氢吡喃-3-酮
- 中文释义:苯并二氢吡喃-3-酮;3-二氢色原酮
- 英文别名:4H-chromen-3-one;
2H-1-Benzopyran-3(4H)-one;
3-Chromanone(7CI,8CI);
3-CHROMANONE;
2H-chromen-3(4H)-one;
chroman-3-one
- CAS No.:19090-04-1
- 分子式:C9H8O2
- 分子量:148.16
- 精确分子量:148.05200
- PSA:26.30000
- InChI:InChI=1/C9H8O2/c10-8-5-7-3-1-2-4-9(7)11-6-8/h1-4H,5-6H2
- 分子结构式:
物化性质
- 密度:
- 1.197 g/cm3
- 沸点:
- 281.452ºC at 760 mmHg
- 闪点:
- 136.065°C
- 折射率:
- 1.562
- 蒸汽压:
- 0.004mmHg at 25°C
安全信息
- 密度:
- 1.197 g/cm3
- 沸点:
- 281.452ºC at 760 mmHg
- 闪点:
- 136.065°C
- 折射率:
- 1.562
- 蒸汽压:
- 0.004mmHg at 25°C
海关数据
中国海关编码:2932999099
- 概述:
- 2932999099. 其他仅含氧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%
- 申报要素:
- 品名, 成分含量, 用途
- 摘要/Summary:
- 2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%