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| CAS号 : | 627-21-4 |
精确质量 : | 68.06260 |
| 分子式 : | C5H8 |
logP : | 1.41970 |
| 分子量 : | 68.11700 |
PSA : | 0.00000 |
2-戊炔 | |
pent-2-yne | |
627-21-4 | |
C5H8 | |
68.11700 | |
0.00000 | |
1.41970 | |
68.06260 |
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n20/D 1.404(lit.)
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−23 °F
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56-57 °C(lit.)
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−109 °C(lit.)
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0.71 g/mL at 25 °C(lit.)
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393 mm Hg ( 37.7 °C)
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Flammables area
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3
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3
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S16; S26; S36/37/39
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II
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UN 3295 3/PG 2
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F; Xi
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R11
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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% |
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