100313-76-6
2-chloro-3-cyano-6-methyl-5-nitro-isonicotinic acid methyl ester
→
109069-83-2
3-amino-6-chloro-5-cyano-2-methyl-isonicotinic acid methyl ester
65-23-6
吡多素
15741-67-0
6-chloro-4,5-bis(hydroxymethyl)-2-methylpyridin-3-ol
479-30-1
5-hydroxy-6-methylpyridine-3,4-dicarboxylic acid
5442-82-0
5-amino-6-methylpyridine-3,4-dicarboxylic acid