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| CAS号 : | 17345-77-6 |
精确质量 : | 187.94700 |
| 分子式 : | C6H5BrO2 |
logP : | 1.86030 |
| 分子量 : | 189.00700 |
PSA : | 40.46000 |
4-溴-1,2-苯二酚 | |
4-Bromocatechol | |
17345-77-6 | |
C6H5BrO2 | |
189.00700 | |
40.46000 | |
1.86030 | |
187.94700 |
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1.657
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123.5ºC
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0.00222mmHg at 25°C
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87ºC
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1.844g/cm3
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280.5ºC at 760mmHg
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2908199090
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R36/37/38
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S26; S36/37/39
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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% |
将邻苯二酚溶于冰乙酸，冷却下滴加溴和冰乙酸配成的溶液。反应2h后，减压蒸除乙酸，所得粗品用溶剂溶解、活性炭脱色，分离，干燥，得成品。 | |
有机合成中间体。 |
