CAS No. 114012-12-3

Batch: Purity:98.65
Phaclofen Chemical Structure
Chemical Structure
Check the Phaclofen product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 114012-12-3
Molecular Formula

C9H13ClNO3P

Molecular Weight (MW) 249.63

Ordering Information

Biological Activity

Phaclofen is a selective antagonist of GABAB receptors, acting as both a central and peripheral blocker of baclofen-mediated responses. By competitively binding to GABAB receptors, phaclofen inhibits GABAB-mediated hyperpolarization and presynaptic inhibition. It serves as a key pharmacological tool for dissecting bicuculline-insensitive GABAergic neurotransmission and investigating GABAB receptor-regulated signaling pathways in neuronal tissues.

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
Water 4 mg/mL
DMSO Insoluble
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO.)
Ethanol 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).
Note: Technical data last updated: Sep 1, 2026.