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![3,3'-乙亚基二[4-羟基-2-苯并吡喃酮]结构式](https://www.chemicalbook.com/CAS/GIF/1821-16-5.gif)
| CAS号 : | 1821-16-5 |
精确质量 : | 350.07900 |
| 分子式 : | C20H14O6 |
logP : | 3.46240 |
| 分子量 : | 350.32200 |
PSA : | 100.88000 |
3,3'-乙亚基二[4-羟基-2-苯并吡喃酮] | |
4-hydroxy-3-[1-(4-hydroxy-2-oxochromen-3-yl)ethyl]chromen-2-one | |
1821-16-5 | |
C20H14O6 | |
350.32200 | |
100.88000 | |
3.46240 | |
350.07900 |
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1.717
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188.6ºC
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1.14E-11mmHg at 25°C
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1.534g/cm3
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520.7ºC at 760 mmHg
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III
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6.1(b)
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2932209090
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UN 2811
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品名, 成分含量, 用途 |
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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% |
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2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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2932209090. Other Lactones |