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| CAS号 : | 110-52-1 |
精确质量 : | 213.89900 |
| 分子式 : | C4H8Br2 |
logP : | 2.55640 |
| 分子量 : | 215.91400 |
PSA : | 0.00000 |
1,4-二溴丁烷 | |
1,4-Dibromobutane | |
110-52-1 | |
C4H8Br2 | |
215.91400 | |
0.00000 | |
2.55640 | |
213.89900 |
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n20/D 1.519(lit.)
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无色液体
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>230 °F
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63-65 °C6 mm Hg(lit.)
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−20 °C(lit.)
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immiscible
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1.808 g/mL at 25 °C(lit.)
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0.544mmHg at 25°C
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Stable. Combustible. Incompatible with strong oxidizing agents, strong bases.
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Store in a cool, dry place. Store in a tightly closed container.
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EJ7565000
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6.1(b)
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2
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S26-S39-S45-S37/39
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III
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UN 2810 6.1/PG 3
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T
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R25; R36/37/38; R41
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2903399090
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品名, 成分含量, 用途 |
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2903399090. 其他无环烃的氟化、溴化或碘化衍生物. 增值税率:17.0%. 退税率:13.0%. 监管条件:无. 最惠国关税:5.5%. 普通关税:30.0% |
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2903399090. brominated,fluorinated or iodinated derivatives of acyclic hydrocarbons. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0% |
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HS:2903399090.Fluorinated or iodinated derivatives of acyclic hydrocarbons. General tariff:0 |
1、由四氢呋喃经开环、溴化而得。反应锅中加入氢溴酸,在搅拌下滴加四氢呋喃,再滴加硫酸,温度控制在50℃以下。然后升温至108℃左右回流4h,反应完毕后继续搅拌1h,放冷分取下层液,用纯碱溶液洗至中性,加无水氯化钙干燥,过滤得成品。 | |
有机合成中间体，用于制造氨茶碱、咳必清、驱蛲净等。 |
