乙酸胍

乙酸胍

guanidinoacetic acid

352-97-6

C3H7N3O2

117.10700

99.20000

-0.25500

117.05400

1.596

白色至略米色细结晶粉末

163.5ºC

346.8ºC at 760 mmHg

300 °C(lit.)

1.59g/cm3

Stable under normal temperatures and pressures.

Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

MB7700000

3

29252000

S26-S36

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>由硫脲与溴乙烷反应生成S-乙基硫脲氢溴酸盐,再与甘氨酸反应制得胍乙酸。将硫脲、溴乙烷及无水乙醇混合,于水浴温热3h,使硫脲全部溶解。然后减压蒸出乙醇及过量溴乙烷,使残留物结晶,干燥,得S-乙基硫脲氢溴酸盐。再将氢氧化钠溶液加入所得的S-乙基硫脲氢溴酸盐中,冷却下,迅速加入甘氨酸和水配成的热溶液。结晶后加入乙醚,放置过夜,将混合物在冰浴中冷却2h,分出乙醚层。吸滤,依次用冰水、乙醇、乙醚洗涤,晾干即得成品。</p>

<p>用作食品添加剂、饲料添加剂、有机合成中间体。</p>