苦酮酸

Picrolonic acid; 3-Methyl-4-nitro-1-(p-nitrophenyl)-2-pyrazolin-5-one;

BRN 0623723; NSC 5049; 2-Pyrazolin-5-one, 3-methyl-4-nitro-1-(p-nitrophenyl)-;

3-Methyl-4-nitro-1-p-nitrophenyl-5-pyrazolone;

3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-4-nitro-2-(4-nitrophenyl)-;

Picrolonic acid (VAN) (8CI); 5-methyl-4-nitro-2-(4-nitrophenyl)-2,4-dihydro-3H-pyrazol-3-one;

(4S)-5-methyl-4-nitro-2-(4-nitrophenyl)-2,4-dihydro-3H-pyrazol-3-one;

(4R)-5-methyl-4-nitro-2-(4-nitrophenyl)-2,4-dihydro-3H-pyrazol-3-one

可作各種生物鹼、色氨酸、苯丙氨酸的鑑定試劑，亦可用以測定鍶、釷、鎂、鉛等。