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| CAS号 : | 5222-73-1 |
精确质量 : | 142.02700 |
| 分子式 : | C6H6O4 |
logP : | -0.35740 |
| 分子量 : | 142.10900 |
PSA : | 52.60000 |
3,4-二甲氧基-3-环丁烯-1,2-二酮 | |
3,4-Dimethoxy-3-cyclobutene-1,2-dione | |
5222-73-1 | |
C6H6O4 | |
142.10900 | |
52.60000 | |
-0.35740 | |
142.02700 |
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白色结晶粉末
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1.478
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128ºC
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0-6ºC
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55-57 °C(lit.)
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1.3g/cm3
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286.1ºC at 760mmHg
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2914509090
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3
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R42/43
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S22-S24/25-S26-S36/37/39
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品名, 成分含量, 用途, 丙酮报明包装 |
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2914509090 含其他含氧基的酮. 增值税率:17.0% 退税率:9.0% 监管条件:无 最惠国关税:5.5% 普通关税:30.0% |
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HS:2914509090 other ketones with other oxygen function VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0% |
