CAS No. 1799328-86-1
Batch:
Purity:99.75
Chemical Structure
Check the
Tolinapant (ASTX660)
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
Chemical Information
| IUPAC Name | 1-[6-[(4-fluorophenyl)methyl]-5-(hydroxymethyl)-3,3-dimethyl-2H-pyrrolo[3,2-b]pyridin-1-yl]-2-[(2R,5R)-5-methyl-2-[[(3R)-3-methylmorpholin-4-yl]methyl]piperazin-1-yl]ethanone | |
|---|---|---|
| CAS Number | 1799328-86-1 | |
| Molecular Formula |
C30H42FN5O3 |
|
| Molecular Weight (MW) | 539.68 | |
| SMILES | CC1CN(C(CN1)CN2CCOCC2C)CC(=O)N3CC(C4=C3C=C(C(=N4)CO)CC5=CC=C(C=C5)F)(C)C | |
| InChIKey | YCXOHEXZVKOGEV-DNRQZRRGSA-N |
Biological Activity
Tolinapant (ASTX660) is a non-peptidomimetic antagonist of cIAP1/2 and XIAP, disrupting SMAC peptide binding to the BIR3 domain of cIAP1 (IC50 < and XIAP (IC50 <. Disruption of these inhibitor of apoptosis proteins causes rapid cIAP1 degradation, triggers non-canonical NF-kB signaling, activates pro-apoptotic caspase cascades, and drives apoptotic cell death in various tumor cell lines. [1]
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 |
100 mg/mL
(185.29 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Ethanol | 100 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.
Reference
Jump to
- Tolinapant (ASTX660) Clinical Trials
- Tolinapant (ASTX660) Solubility in DMSO
- Tolinapant (ASTX660) Stock Solution
- Tolinapant (ASTX660) Storage
- Tolinapant (ASTX660) Stability
- Tolinapant (ASTX660) Molecular Weight
- Tolinapant (ASTX660) SMILES
- Tolinapant (ASTX660) Chemical Structure (2D and 3D)
- Tolinapant (ASTX660) SDS|MSDS
Note: Technical data last updated: Sep 1, 2026.