288-13-1
吡唑
+
75-44-5
光气
→
~99%
37868-93-2
Di-1H-pyrazol-1-ylmethanone
288-12-0
3H-pyrazole
~95%
32315-10-9
二(三氯甲基)碳酸酯
~75%
69614-04-6
(S)-5,6,7,8-四氢-5-氧代咪唑并[1,5-c]嘧啶-7-甲酸甲酯