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![4-氧杂-4,5,6,7-四氢苯并[B]呋喃-3-羧酸结构式](https://www.chemicalbook.com/CAS/GIF/56671-28-4.gif)
| CAS号 : | 56671-28-4 |
精确质量 : | 180.04200 |
| 分子式 : | C9H8O4 |
logP : | 1.49680 |
| 分子量 : | 180.15700 |
PSA : | 67.51000 |
4-氧杂-4,5,6,7-四氢苯并[B]呋喃-3-羧酸 | |
4-Oxo-4,5,6,7-tetrahydro-1-benzofuran-3-carboxylic acid | |
56671-28-4 | |
C9H8O4 | |
180.15700 | |
67.51000 | |
1.49680 | |
180.04200 |
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1.576
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185.7ºC
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140ºC
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1.406g/cm3
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383.5ºC at 760mmHg
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2932999099
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R36/37/38
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S26; S36/37/39
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品名, 成分含量, 用途 |
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2932999099. 其他仅含氧杂原子的杂环化合物. 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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2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |