Basic

CAS No.	1672-63-5
Product Name	4-hydroxyantipyrine
Synonyms	4-Hydroxyantipyrine; NSC 174055; 3H-Pyrazol-3-one, 1,2-dihydro-4-hydroxy-1,5-dimethyl-2-phenyl- (9CI); 4-hydroxy-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one
Molecular Formula	C11H12N2O2
Molecular Weight	204.2252

Physical property

Density	1.294g/cm3
Melting point	184-186℃
Boiling point	314.3°C at 760 mmHg
Flash point	143.9°C
Refractive index	1.63