![3,3'-ethylidenebis[4-hydroxy-2-benzopyrone]结构式](https://www.chemsrc.com/caspic/220/1821-16-5.png)
3,3'-ethylidenebis[4-hydroxy-2-benzopyrone]结构式
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常用名 | 3,3'-ethylidenebis[4-hydroxy-2-benzopyrone] | 英文名 | 3,3'-ethylidenebis[4-hydroxy-2-benzopyrone] |
|---|---|---|---|---|
| CAS号 | 1821-16-5 | 分子量 | 350.32200 | |
| 密度 | 1.534g/cm3 | 沸点 | 520.7ºC at 760 mmHg | |
| 分子式 | C20H14O6 | 熔点 | N/A | |
| MSDS | N/A | 闪点 | 188.6ºC |
| 英文名 | 4-hydroxy-3-[1-(4-hydroxy-2-oxochromen-3-yl)ethyl]chromen-2-one |
|---|---|
| 英文别名 | 更多 |
| 密度 | 1.534g/cm3 |
|---|---|
| 沸点 | 520.7ºC at 760 mmHg |
| 分子式 | C20H14O6 |
| 分子量 | 350.32200 |
| 闪点 | 188.6ºC |
| 精确质量 | 350.07900 |
| PSA | 100.88000 |
| LogP | 3.46240 |
| 蒸汽压 | 1.14E-11mmHg at 25°C |
| 折射率 | 1.717 |
| 危险品运输编码 | UN 2811 |
|---|---|
| 包装等级 | III |
| 危险类别 | 6.1(b) |
| 海关编码 | 2932209090 |
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~94%
3,3'-ethylidene... 1821-16-5 |
| 文献：Khan, Khalid Mohammed; Iqbal, Sajid; Lodhi, Muhammad Arif; Maharvi, Ghulam Murtaza; Zia-Ullah; Choudhary, Muhammad Iqbal; Atta-ur-Rahman; Perveen, Shahnaz Bioorganic and Medicinal Chemistry, 2004 , vol. 12, # 8 p. 1963 - 1968 |
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~%
详细
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| 文献：Ziegler et al. Monatshefte fuer Chemie, 1956 , vol. 87, p. 439,445 |
| 海关编码 | 2932209090 |
|---|---|
| 中文概述 | 2932209090. 其他内酯. 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 |
| Summary | 2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
| Methyl-dicumarol |
| 4,4'-dihydroxy-3,3'-ethane-1,1-diyl-bis-chromen-2-one |
| Ethylidene dicoumarol |
