CAS No. 50-33-9
Batch:
Purity:100
Chemical Structure
Check the
Phenylbutazone
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
Chemical Information
| IUPAC Name | 4-butyl-1,2-diphenylpyrazolidine-3,5-dione | |
|---|---|---|
| CAS Number | 50-33-9 | |
| Molecular Formula |
C19H20N2O2 |
|
| Molecular Weight (MW) | 308.37 | |
| SMILES | CCCCC1C(=O)N(N(C1=O)C2=CC=CC=C2)C3=CC=CC=C3 | |
| InChIKey | VYMDGNCVAMGZFE-UHFFFAOYSA-N |
Biological Activity
Phenylbutazone is a non-steroidal anti-inflammatory drug (NSAID) that acts as an inhibitor of cyclooxygenase (COX), suppressing prostaglandin synthesis. By inhibiting COX activity, phenylbutazone reduces the production of pro-inflammatory eicosanoids, thereby suppressing downstream inflammatory cascades and pain signaling pathways. This inhibition leads to reduced leukocyte infiltration and decreased inflammatory tissue responses in preclinical models of inflammation.
How to Prepare Stock Solution?
|
Concentration
Volume
Mass
|
|---|
Solubility
Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
| Solvent | Solubility & Note |
|---|---|
| DMSO |
62 mg/mL
(201.05 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Ethanol | 62 mg/mL |
| Water | Insoluble |
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
- Preheat media/saline to 37°C.
- Mix rapidly (pipette/vortex) upon addition.
- For complex mixes, always add the aqueous phase last.
- Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).
Pre-aliquoted for Longevity: Solid-state aliquots offer longer shelf life compared to stock solutions.
Looking for a specific aliquot size? Contact your local sales representative or orders@selleckchem.com.
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Note: Technical data last updated: Sep 1, 2026.