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| CAS号 : | 13024-90-3 |
精确质量 : | 208.04000 |
| 分子式 : | C10H9ClN2O |
logP : | 1.95320 |
| 分子量 : | 208.64400 |
PSA : | 32.67000 |
1-(4-氯苯基)-3-甲基-2-吡唑啉-5-酮 | |
1-(4-Chlorophenyl)-3-Methyl-2-Pyrazolin-5-One | |
13024-90-3 | |
C10H9ClN2O | |
208.64400 | |
32.67000 | |
1.95320 | |
208.04000 |
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淡黄色结晶粉末
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1.625
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150.9ºC
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4.62E-06mmHg at 25°C
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167-171 °C(lit.)
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1.306 g/cm3
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325.9ºC at 760 mmHg
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2933199090
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3
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品名, 成分含量, 用途, 乌洛托品请注明外观, 6-己内酰胺请注明外观, 签约日期 |
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2933199090. 其他结构上有非稠合吡唑环化合物. 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% |
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2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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2933199090. Other Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. General tariff:6.5% |
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2933199090. Other Compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. General tariff: |
由对氯苯肼与乙酰乙酰胺缩合、闭环而得。将对氯苯肼盐酸盐加入缩合锅中,于90-95℃加入乙酰乙酰胺,约30-40min加完,缩合后pH为2.5-3,反应完毕降温至45℃出料,用水洗至中性或酸性,干燥而得成品。 | |
中性染料中间体。用于制造中性艳黄3GL、中性橙RL、中性深棕BRL等。 |