CAS No. 321688-88-4
Batch:
Purity:99.41
Chemical Structure
Check the
Poloxin
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
| IUPAC Name | [(Z)-(2-methyl-4-oxo-5-propan-2-ylcyclohexa-2,5-dien-1-ylidene)amino] 2-methylbenzoate | |
|---|---|---|
| CAS Number | 321688-88-4 | |
| Molecular Formula |
C18H19NO3 |
|
| Molecular Weight (MW) | 297.35 | |
| SMILES | CC(C)C1=CC(=N/OC(=O)C2=CC=CC=C2C)/C(=CC1=O)C | |
| InChIKey | CMOJHDQJJPIVEC-MNDPQUGUSA-N |
Poloxin is a non-ATP competitive inhibitor of Polo-like kinase 1 polo-box domain (Plk1 PBD) with an apparent IC50 of. It displays selectivity over Plk2 PBD (IC50 approximately 4-fold higher) and Plk3 PBD (IC50 approximately 11-fold higher). By disrupting Plk1 PBD-mediated substrate binding, Poloxin impairs mitotic spindle assembly, ultimately inducing mitotic arrest and apoptosis in cancer cells. [1]
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Concentration
Volume
Mass
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|---|
Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
| Solvent | Solubility & Note |
|---|---|
| DMSO |
59 mg/mL
(198.41 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Ethanol | 30 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).
Note: Technical data last updated: Sep 1, 2026.