4553-62-2
甲基戊二腈
→
~2%
51566-22-4
3-甲基吡啶-2,6-二胺
1193-75-5
6-imino-5-methyl-4,5-dihydro-3H-pyridin-2-amine
~1%
108-99-6
3-甲基吡啶