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| CAS号 : | 42059-58-5 |
精确质量 : | 216.04200 |
| 分子式 : | C12H8O4 |
logP : | 1.89080 |
| 分子量 : | 216.19000 |
PSA : | 67.51000 |
(2E)-3-(4-氧代-4H-苯并吡喃-3-基)丙烯酸 | |
trans-3-(4-oxo-4H-1-benzopyran-3-yl)acrylic acid | |
42059-58-5 | |
C12H8O4 | |
216.19000 | |
67.51000 | |
1.89080 | |
216.04200 |
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1.712
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145.7ºC
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1.484g/cm3
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367.7ºC at 760 mmHg
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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: |
