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| CAS号 : | 4214-76-0 |
精确质量 : | 139.03800 |
| 分子式 : | C5H5N3O2 |
logP : | 1.67640 |
| 分子量 : | 139.11200 |
PSA : | 84.73000 |
2-氨基-5-硝基吡啶 | |
2-Amino-5-nitropyridine | |
4214-76-0 | |
C5H5N3O2 | |
139.11200 | |
84.73000 | |
1.67640 | |
139.03800 |
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黄色细结晶粉末
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351.3ºC at 760 mmHg
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186-188 °C(lit.)
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1.437
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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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3
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29333999
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S26-S37/39-S24/25
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Xi
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R36/37/38
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2933990090
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2933990090. 其他仅含氮杂原子的杂环化合物. 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% | |
2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
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由2-氨基吡啶硝化而得。在温度50℃下，将2-氨基吡啶加到浓硫酸中，再滴加发烟硝酸，温度不超过50℃。45℃保温2h，室温条件下搅拌4h。反应液倾入碎冰中，5℃以下加氨水调节至pH6，析出晶体。过滤，干燥。用水重结晶，得淡黄色片晶，收率75% | |
医药中间体。 |
