2-氧代丁二酸 4-甲酯; 4-甲氧基-2,4-氧代丁酸;

oxalacetic acid 4-methyl ester; 4-METHOXY-2,4-DIOXOBUTANOIC ACID; 2-Oxobutanedioic acid 4-methyl ester; 2-Oxo-succinic acid 4-methyl ester; oxaloacetic acid 4-methyl ester;