120-93-4
2-咪唑烷酮
+
106-38-7
对溴甲苯
→
~90%
5584-36-1
2,4-dichloro-1-[4-(4-methoxyphenoxy)butoxy]benzene
75-44-5
光气
4693-68-9
N,N'-bis(4-methylphenyl)ethane-1,2-diamine