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| CAS号 : | 64887-40-7 |
精确质量 : | 279.05300 |
| 分子式 : | C16H9NO4 |
logP : | 1.65860 |
| 分子量 : | 279.24700 |
PSA : | 76.21000 |
3-(2-苯并噁唑)-7-羟基香豆素 | |
(3E)-3-(3H-1,3-benzoxazol-2-ylidene)chromene-2,7-dione | |
64887-40-7 | |
C16H9NO4 | |
279.24700 | |
76.21000 | |
1.65860 | |
279.05300 |
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1.722
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286.767ºC
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302ºC(lit.)
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1.487g/cm3
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550.558ºC at 760 mmHg
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2934999090
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3
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S22; S24/25
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品名, 成分含量, 用途 |
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2934999090. 其他杂环化合物. 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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2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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2934999090. Other nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds. General tariff: |
