CAS No. 1628208-23-0
Batch:
Purity:99.80
Chemical Structure
Check the
CPI-455
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
| IUPAC Name | 7-oxo-5-phenyl-6-propan-2-yl-1H-pyrazolo[1,5-a]pyrimidine-3-carbonitrile | |
|---|---|---|
| CAS Number | 1628208-23-0 | |
| Molecular Formula |
C16H14N4O |
|
| Molecular Weight (MW) | 278.31 | |
| SMILES | CC(C)C1=C(NC2=C(C=N[N]2C1=O)C#N)C3=CC=CC=C3 | |
| InChIKey | VGXRQCOVGLGFIM-UHFFFAOYSA-N |
CPI-455 is a potent histone demethylase KDM5 inhibitor, demonstrating an IC50 offor full-length KDM5A and showing over 200-fold selectivity for KDM5 over KDM2, KDM3, KDM4, KDM6, and KDM7 enzymes. By blocking KDM5-mediated demethylation, CPI-455 increases cellular levels of histone H3 lysine 4 trimethylation (H3K4me3). This targeted inhibition impairs the expansion and survival of drug-tolerant persister cancer cells. [1]
|
Concentration
Volume
Mass
|
|---|
Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
| Solvent | Solubility & Note |
|---|---|
| Ethanol | 5 mg/mL |
| DMSO |
Insoluble
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.) |
| Water | Insoluble |
| DMSO |
1 mg/mL
(3.59 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.) |
| Water | Insoluble |
| Ethanol | 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 significantly longer shelf life compared to stock solutions, ensuring maximum stability for every use.
Looking for a specific aliquot size? Reach out to your local sales representative or contact us at orders@selleckchem.com.
Note: Technical data last updated: Sep 1, 2026.