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T8516 Sigma

Trifluoperazine dihydrochloride

≥99%, powder

Synonym: 10-[3-(4-Methylpiperazin-1-yl)propyl]-2-(trifluoromethyl)-10H-phenothiazine dihydrochloride



Related Categories Application Index, Bioactive Small Molecule Alphabetical Index, Bioactive Small Molecules, Biochemicals and Reagents, Calcium Antagonists,
assay   ≥99%
form   powder
color   white to off-white
mp   243 °C (dec.)(lit.)
solubility   ethanol: soluble5 mg/mL
  H2O: soluble50 mg/mL, clear, colorless to yellow
  DMSO: soluble
storage temp.   −20°C
Gene Information   human ... DRD2(1813)



5, 10 g in glass bottle

Preparation Note

Trifluoperazine dihydrochloride dissolves in water at 50 mg/ml, with heat as required, and yields a clear, colorless to yellow solution. It is also soluble in DMSO and ethanol (5 mg/ml).


Trifluoperazine dihydrochloride has been used as a calmodulin kinase antagonist in cultured Aplysia californica neurons1. Trifluoperazine dihydrochloride has also been used as a PMCA inhibitor in mouse duodenal tissues to block the transcellular active calcium flux2.

Biochem/physiol Actions

Phenothiazine antipsychotic; D2 dopamine receptor antagonist; inhibits calmodulin-dependent stimulation of 3′:5′-cyclic nucleotide phosphodiesterase; inhibits cAMP-gated cation channels.

Features and Benefits

This compound is also offered as part of Sigma′s Library of Pharmacologically Active Compounds (LOPAC®,1280), a biologically annotated collection of high-quality, ready-to-screen compounds. Click here to learn more.

This compound is featured on the Potassium Channels page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.

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Trifluoperazine hydrochloride

meets USP testing specifications

Trifluoperazine hydrochloride

United States Pharmacopeia (USP) Reference Standard

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GHS07  GHS07
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92210 Timestrip Plus 0 °C
06693 Timestrip Plus -20 °C

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