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| CAS号 : | 58-55-9 |
精确质量 : | 180.06500 |
| 分子式 : | C7H8N4O2 |
logP : | -1.03970 |
| 分子量 : | 180.16400 |
PSA : | 72.68000 |
茶碱 | |
theophylline | |
58-55-9 | |
C7H8N4O2 | |
180.16400 | |
72.68000 | |
-1.03970 | |
180.06500 |
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1.737
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白色至灰白色结晶粉末
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11 °C
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454.1ºC at 760 mmHg
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271-273 °C
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8.3 g/L (20 ºC)
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1.465 g/cm3
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Stable. Incompatible with strong oxidizing agents.
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2-8ºC
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XH3850000
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6.1(b)
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1
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S7-S16-S36/37-S45
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III
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UN 2811 6.1/PG 3
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2939590000
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Xn
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R22
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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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以氰乙酸乙酯和二甲基尿素为原料,经缩合、亚硝化、还原、甲酰化、环合反应得粗品,再重结晶而得。 | |
主治哮喘病。 |
