CAS No. 208255-80-5
Batch:
Purity:99.99
Chemical Structure
Check the
DAPT
product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.
Chemical Information
| IUPAC Name | tert-butyl (2S)-2-[[(2S)-2-[[2-(3,5-difluorophenyl)acetyl]amino]propanoyl]amino]-2-phenylacetate | |
|---|---|---|
| CAS Number | 208255-80-5 | |
| Molecular Formula |
C23H26F2N2O4 |
|
| Molecular Weight (MW) | 432.46 | |
| SMILES | CC(C(=O)NC(C1=CC=CC=C1)C(=O)OC(C)(C)C)NC(=O)CC2=CC(=CC(=C2)F)F | |
| InChIKey | DWJXYEABWRJFSP-XOBRGWDASA-N |
Biological Activity
DAPT is a functional γ-secretase inhibitor that suppresses total Aβ production with an IC50 ofand Aβ42 levels with an IC50 of. By inhibiting γ-secretase, DAPT blocks Notch signaling pathways and decreases β-amyloid formation, leading to reduced Aβ40 and Aβ42 levels in neuronal cell models and in vivo tissues. Consequently, DAPT promotes neuronal cell differentiation and modulates cellular processes such as apoptosis and autophagy. [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 |
86 mg/mL
(198.86 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Ethanol | 41 mg/mL |
| Water | Insoluble |
| DMSO |
86 mg/mL
(198.86 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Ethanol | 86 mg/mL |
| Water | Insoluble |
| DMSO |
86 mg/mL
(198.86 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Ethanol | 43 mg/mL |
| Water | Insoluble |
| DMSO |
86 mg/mL
(198.86 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.) |
| Ethanol | 43 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
- DAPT Mechanism of Action: γ-secretase Inhibition in Cancer Stem Cells Research
- DAPT Clinical Trials
- DAPT Working Concentration | Cell Culture | Treatment
- DAPT Solubility in DMSO
- DAPT Stock Solution
- DAPT Storage
- DAPT Stability
- DAPT Combination Database
- DAPT Molecular Weight
- DAPT SMILES
- DAPT Chemical Structure (2D and 3D)
- DAPT IC50 for Cell-based and Cell-free Assays
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Note: Technical data last updated: Sep 1, 2026.