CAS No. 208255-80-5

Batch: Purity:99.38
DAPT Chemical Structure
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

Ordering Information

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
1 mg 5 mg 10 mg
🧮 Molarity Calculator

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
FAQ
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).

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Note: Technical data last updated: Sep 1, 2026.