Synonyms	4-Butyl-1,2-diphenyl-3,5-pyrazolidinedione
CAS No.	50-33-9
M.F.	C19H20N2O2
M.W.	308.37
EC No.	200-029-0
MDL No.	MFCD00005500
PubChem Substance ID	24277729

Appearance	White or almost white crystalline powder
Melting Point (°C)	104-107℃
Assay	≥99%
Solubility	Chloroform and methanol
Storage	Room temperature
Application	Phenylbutazone is a non-steroidal anti-inflammatory compound and an inhibitor of cyclooxygenase that is also a substrate for peroxidation by cyclooxygenase.

Symbol	GHS06
Hazard Statements	H301-H312-H315-H319-H332-H335
Precautionary Statements	P261-P280-P301 + P310-P305 + P351 + P338
Hazard Symbols	Xn
Risk Statements	R20/21/22-36/37/38
Safety Statements	S26-36/37
UN No.	2811
Hazard Class	6.1
Packing Group	III
WGK Germany	3
RTECS	UQ8225000

Ali, S.L., Anal. Profiles Drug Subs., 11, 483 (1982) Hughes, M.F., et al.: Mol. Pharmacol., 34, 186 (1988)