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| CAS号 : | 99-61-6 |
精确质量 : | 151.02700 |
| 分子式 : | C7H5NO3 |
logP : | 1.93050 |
| 分子量 : | 151.11900 |
PSA : | 62.89000 |
间硝基苯甲醛 | |
3-Nitrobenzaldehyde | |
99-61-6 | |
C7H5NO3 | |
151.11900 | |
62.89000 | |
1.93050 | |
151.02700 |
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1.617
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淡黄色至褐色结晶粉末或成粒状
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164°C/23mm
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285-290 °C
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56 °C
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Stable under normal temperatures and pressures.
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Keep container closed when not in use. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
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CU7250000
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3
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S26-S36-S24/25-S61-S37/39-S29
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2913000090
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Xi
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R36/37/38
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品名, 成分含量, 用途 |
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2913000090 品目2912所列产品的其他衍生物〔指卤化,磺化,硝化或亚硝化的衍生物〕. 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: 2913000090 halogenated, sulphonated, nitrated or nitrosated derivatives of products of heading 2912 Educational tariff:17.0% Tax rebate rate:9.0% Regulatory conditions:none Most favored nation tariff:5.5% General tariff:30.0% |
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以苯甲醛为原料,用硝酸钾、硝酸钠或硝酸在硫酸存在下进行硝化,都可以生成间硝基苯甲醛,收率大约分别为80%、60%及75%。将硫酸加入反应釜中,边搅拌边加入硝酸钠,加热至70℃使其全部溶解,降温到5℃,滴加苯甲醛,5-10℃加完,反应1h,将反应物慢慢加于碎冰中,充分搅拌使完全析出,滤出沉淀,在10℃用碳酸钠洗去酸,滤干,用酒精洗涤除去邻硝基物,低温减压干燥得到本品。 | |
用作染料、感光材料及药品尼群地平、尼莫地平、尼卡地平中间体。 |
