CAS No. 119356-77-3

Batch: Purity:99.77
Dapoxetine Chemical Structure
Chemical Structure
Check the Dapoxetine product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name (1S)-N,N-dimethyl-3-naphthalen-1-yloxy-1-phenylpropan-1-amine
CAS Number 119356-77-3
Molecular Formula

C21H23NO

Molecular Weight (MW) 305.41
InChIKey USRHYDPUVLEVMC-FQEVSTJZSA-N

Biological Activity

Dapoxetine is an orally active, short-acting selective serotonin reuptake inhibitor (SSRI) that targets the serotonin transporter (SERT). By inhibiting SERT, dapoxetine prevents serotonin reuptake into presynaptic neurons, thereby enhancing 5-hydroxytryptamine (5-HT) neurotransmission within central nervous system synapses. This elevation of synaptic serotonin modulates central serotonergic signaling pathways and inhibits the ejaculatory reflex circuit, prolonging latency to ejaculation in preclinical models. [1]

How to Prepare Stock Solution?

Concentration Volume Mass
🧮 Molarity Calculator

Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 61 mg/mL (199.73 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 15 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

Jump to

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