131543-46-9
alpha-ketodiacetal
+
57-13-6
尿素
→
~99%
3720-97-6
4,5-二羟基四氢-2H-咪唑-2-酮
~97%
496-46-8
甘脲
461-72-3
海因
1242015-38-8
2-(3-hydroxypropyl)-2,4,6,8-tetraazabicyclo[3.3.0]octane-3,7-dione
75371-25-4
5-sulfanylidene-1,3,3a,4,6,6a-hexahydroimidazo[4,5-d]imidazol-2-one