methyl 1-methyl-5-nitropyrazole-3-carboxylate

2-methyl-5-nitro-2H-pyrazole-3-carboxylic acid methyl ester

methyl 3-cyano-2-sodiumoxy-2-propenoate

甲基肼硫酸盐

methyl 5-[(benzyloxycarbonyl)amino]-1-methylpyrazole-3-carboxylate