N-氨基吗啉

N-氨基吗啉

N-Aminomorpholine

4319-49-7

C4H10N2O

102.13500

38.49000

-0.16950

102.07900

n20/D 1.4772(lit.)

无色透明液体

137 °F

168 °C(lit.)

1.059 g/mL at 25 °C(lit.)

miscible

Stable under normal temperatures and pressures.

Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.

QD7300000

3

29349990

3

S26-S36-S23-S16

III

UN 1993 3/PG 3

Xi

R36/37/38

2933990090

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%

<p>由二氯二乙醚与水合肼环合而得。将二氯二乙醚,水合肼及乙醇加入反应罐,搅拌下缓慢升温,回流2h。在保持回流的同时,4h内分批加入氢氧化钠。然后冷却至10℃过滤,弃去滤渣。滤液在常压下回收乙醇至回收量为投料的量的90%。反应液冷却至40-50℃,再加氢氧化钠。搅拌至氢氧化钠溶解后继续搅拌30min。冷却至10-15℃,甩滤,滤渣弃去。滤液用甲苯提取2次(第二次提取液在下批反应中套用)。减压回收甲苯后,收集70-80℃(6.67kPa)馏分。含量20%以上为正沸物,即4-氨基吗啉。</p>

<p>该品是一种医药中间体,用于生产吗导敏药物等。</p>