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| CAS号 : | 503-17-3 |
精确质量 : | 54.04700 |
| 分子式 : | C4H6 |
logP : | 1.02960 |
| 分子量 : | 54.09040 |
PSA : | 0.00000 |
2-丁炔 | |
but-2-yne | |
503-17-3 | |
C4H6 | |
54.09040 | |
0.00000 | |
1.02960 | |
54.04700 |
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n20/D 1.393(lit.)
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-25 °C
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27 °C(lit.)
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-32 °C
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0.691 g/mL at 25 °C(lit.)
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11.47 psi ( 20 °C)
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2-8ºC
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GQ7210000
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3
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3
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S16-S26-S36
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I
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UN 1144 3/PG 1
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F+; Xi
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R12; R36/37
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2933990090
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2933990090. 其他仅含氮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% | |
2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
<p>在液氨中用氨基钠处理乙炔得乙炔钠,再与碘甲烷作用制得本品。也可由2,3-二溴丁烷用强碱处理,脱溴化氢制得。</p> | |
<p>1.用于有机合成中间体。 </p> |
