CAS No. 1331782-27-4

Batch: Purity:99.98
PF-04995274 Chemical Structure
Chemical Structure
Check the PF-04995274 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 1331782-27-4
Molecular Formula

C23H32N2O6

Molecular Weight (MW) 432.51
SMILES C1CN(CCC1COC2=NOC3=C2C(=CC=C3)OC4CCOC4)CC5(CCOCC5)O

Biological Activity

PF-04995274 is a potent, brain-penetrant, orally active partial agonist of the serotonin 4 receptor (5-HT4R). Activation of 5-HT4R stimulates adenylate cyclase and downstream cAMP-dependent signaling cascades, promoting neuroprotective non-amyloidogenic processing and facilitating cholinergic transmission. Through target engagement in the central nervous system, PF-04995274 enhances synaptic plasticity and cognitive function in preclinical models of cognitive disorders associated with Alzheimer's disease. [1]

How to Prepare Stock Solution?

Concentration Volume Mass
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 86 mg/mL (198.83 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 20 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).

Reference

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