CAS No. 92-84-2

Batch: Purity:99.31
Phenothiazine Chemical Structure
Chemical Structure
Check the Phenothiazine product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 92-84-2
Molecular Formula

C12H9NS

Molecular Weight (MW) 199.27
SMILES C1=CC=C2C(=C1)NC3=CC=CC=C3S2

Ordering Information

Biological Activity

Phenothiazine is a dopamine-2 (D2) receptor antagonist that acts to decrease dopamine-mediated signaling within the central nervous system. By blocking postsynaptic D2 receptors, it prevents dopamine binding and suppresses downstream G protein-coupled receptor signaling pathways. This inhibition leads to alterations in neuronal excitability, modulation of neurotransmitter release, and reduced dopamine-driven cellular phenotypes. [1][2]

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 40 mg/mL (200.73 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water Insoluble
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).

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