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| CAS号 : | 1821-20-1 |
精确质量 : | 234.05300 |
| 分子式 : | C12H10O5 |
logP : | 1.67530 |
| 分子量 : | 234.20500 |
PSA : | 76.74000 |
4-羟基-2-氧代-2H-1-苯并吡喃-3-羧酸乙酯 | |
ethyl 4-hydroxy-2-oxochromene-3-carboxylate | |
1821-20-1 | |
C12H10O5 | |
234.20500 | |
76.74000 | |
1.67530 | |
234.05300 |
|
1.603
|
|
|
144.2ºC
|
|
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3.71E-06mmHg at 25°C
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|
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1.41g/cm3
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|
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370.9ºC at 760 mmHg
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2932209090
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品名, 成分含量, 用途 |
|
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% |
|
2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
|
2932209090. Other Lactones |
