Phenylbutazone, a nonsteroidal anti-inflammatory drug, is an efficient reducing cofactor for the peroxidase activity of COX.1 Phenylbutazone-dependent inactivation of COX and prostacyclin synthase is markedly increased in the presence of 100 µM hydrogen peroxide with half-maximal effects at Phenylbutazone concentrations of 100 and 25 µM for COX and prostacyclin synthase, respectively.1
1
Reed, G.A., Griffin, I.O., and Eling, T.E. Inactivation of prostaglandin H synthase and prostacyclin synthase by phenylbutazone. Requirement for peroxidative metabolism. Mol Pharmacol27109-114(1985).
Formal Name
4-butyl-1,2-diphenyl-3,5-pyrazolidinedione
CAS Number
50-33-9
Molecular Formula
C19H20N2O2
Formula Weight
308.4
Formulation
A crystalline solid
Purity
>99%
λmax
242 nm
Stability
2 years
Storage
Room temperature
Shipping
Room temperature
in continental US; may vary elsewhere
SMILES
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CCCCC1C(=O)N(c2ccccc2)N(c2ccccc2)C1=O
Background Reading
Reed, G.A., Griffin, I.O., and Eling, T.E. Inactivation of prostaglandin H synthase and prostacyclin synthase by phenylbutazone. Requirement for peroxidative metabolism. Mol Pharmacol27109-114(1985).
Phenylbutazone is available in the following screening
library: