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| CAS号 : | 56-06-4 |
精确质量 : | 126.05400 |
| 分子式 : | C4H6N4O |
logP : | 0.50900 |
| 分子量 : | 126.11700 |
PSA : | 98.05000 |
2,4-二氨基-6-羟基嘧啶 | |
2,4-Diamino-6-hydroxypyrimidine | |
56-06-4 | |
C4H6N4O | |
126.11700 | |
98.05000 | |
0.50900 | |
126.05400 |
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略白色晶体
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128.3ºC
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288.5ºC at 760 mmHg
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285-286 °C (dec.)(lit.)
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1.84 g/cm3
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Stable under normal temperatures and pressures.
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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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29335995
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3
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S22-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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<p>将硝酸胍在甲醇钠(或50%NaOH)液中加热搅拌,回流半小时后,滴加氰乙酸甲酯,回流2小时,反应毕,加热回收甲醇。残留物中加热水使之溶解,升温达80℃时,加醋酸调pH=8,析出产品结晶,冷至20℃以下,过滤、洗涤、干燥即得。</p> | |
<p>用于检测硝酸盐和亚硝酸盐。有机合成。医药中间体。用于生产药物癌敌-M、降压药敏乐啶、抗贫血药叶酸。</p> |
