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| CAS号 : | 6627-55-0 |
精确质量 : | 185.96800 |
| 分子式 : | C7H7BrO |
logP : | 2.46310 |
| 分子量 : | 187.03400 |
PSA : | 20.23000 |
2-溴-4-甲基苯酚 | |
2-Bromo-4-methylphenol | |
6627-55-0 | |
C7H7BrO | |
187.03400 | |
20.23000 | |
2.46310 | |
185.96800 |
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透明无色至淡黄色液体
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n20/D 1.578(lit.)
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Stable at room temperature in closed containers under normal storage and handling conditions.
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>230 °F
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Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
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213-214 °C
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1.547 g/mL at 25 °C(lit.)
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213-214 °C(lit.)
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2908199090
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3
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R21/22; R36/37/38
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S26-S37/39-S36/37/39-S24/25
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GO6868200
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Xn
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品名, 成分含量, 用途 |
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HS:2908199090 其他酚及酚醇的仅含卤素取代基的衍生物及其盐 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: 2908199090. derivatives of polyphenols or phenol-alcohols containing only halogen substituents and their salts. VAT:17.0%. tax rebate rate:9.0%. supervision conditions:None. MFN tariff:5.5%. general tariff:30.0% |
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由2-溴-4-甲基苯胺重氮化、水解而得:将稀硫酸加到2-溴-4-甲基苯中,搅拌冷却,在5℃以下加入亚硝酸钠水溶液,温度保持在5℃以下,然后再加冷水、尿素和碎冰,得重氮盐溶液。再将无水硫酸钠、浓硫酸和水加热,在130~135℃分批加入重氮盐溶液,然后分批加入水进行蒸馏,所得馏出液用乙醚提取,用10%碳酸氢钠溶液洗涤,再经无水硫酸钠干燥,过滤,滤液蒸去乙醚而得成品。另一种方法是由对甲苯酚在氯仿溶剂中直接溴化 | |
有机合成中间体 |
