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| CAS号 : | 21251-20-7 |
精确质量 : | 82.00550 |
| 分子式 : | C4H2O2 |
logP : | -0.61240 |
| 分子量 : | 82.05750 |
PSA : | 34.14000 |
2-丁炔二醛 | |
but-2-ynedial | |
21251-20-7 | |
C4H2O2 | |
82.05750 | |
34.14000 | |
-0.61240 | |
82.00550 |
|
47.6ºC
|
|
|
1.131 g/cm3
|
|
|
154.5ºC at 760 mmHg
|
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2912190090
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HS:2912190090.Acyclic aldehydes without other oxygen function |
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品名, 成分含量, 用途, 四聚甲醛报明外观 |
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HS: 2912190090. 其他无环醛（不含其他含氧基）. 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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2912190090 acyclic aldehydes without other oxygen function。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0% |
