37972-23-9
2-chloro-4-[2-(trimethylsilyl)ethynyl]Pyrimidine
→
~99%
37968-69-7
(9CI)-2-氯-4-乙炔嘧啶
3934-20-1
2,4-二氯嘧啶
+
74-86-2
乙炔