876477-74-6
2-cyano-4-methyl-furan-3-carboxylic acid
→
59304-40-4
4-甲基-2-呋喃羧酸
155160-68-2
ethyl 2-(2-ethoxy-2-oxoethyl)-4-methylfuran-3-carboxylate
930-27-8
3-甲基呋喃