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| CAS号 : | 18398-73-7 |
精确质量 : | 204.04200 |
| 分子式 : | C11H8O4 |
logP : | 1.57960 |
| 分子量 : | 204.17900 |
PSA : | 56.51000 |
4-氧代-4H-苯并吡喃-2-羧酸甲酯 | |
methyl 4-oxochromene-2-carboxylate | |
18398-73-7 | |
C11H8O4 | |
204.17900 | |
56.51000 | |
1.57960 | |
204.04200 |
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1.578
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137.2ºC
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0.000569mmHg at 25°C
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1.337g/cm3
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311.3ºC at 760mmHg
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2918300090
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品名, 成分含量, 用途 |
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2918300090 其他含醛基或酮基不含其他含氧基羧酸（包括酸酐、酰卤化物、过氧化物和过氧酸及该税号的衍生物）. 增值税率:17.0% 退税率:9.0% 监管条件:无 最惠国关税:6.5% 普通关税:30.0% |
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2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
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2918300090. Other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives. General tariff: |
