930-36-9
N-甲基吡唑
→
~16%
29184-68-7
1-methyl-2-oxidopyrazol-2-ium
74-83-9
溴甲烷
+
81945-73-5
1-羟基吡唑
27412-67-5
2-methyl-3-nitro-1-oxidopyrazol-1-ium