Picrolonic Acid

Name:
Picrolonic Acid
Detailed information:

Chemistry name:	3-methyl-4-nitro-1-(p-nitrophenyl)-5-pyrazolone
M Formula:	NO2C6H4NNC(CH3)C(NO2)COH
Properties:
Yellow leaflets. Mp 116–117C, decomposes 125C. Slightly soluble in water; soluble in alcohol.
Use:
Reagent for alkaloid identifications; tryptophan and phenylalanine; detection and estimation of calcium.