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573110

Sigma-Aldrich

STAT5 Inhibitor III, Pimozide

The STAT5 Inhibitor III, Pimozide, also referenced under CAS 2062-78-4, controls the biological activity of STAT5. This small molecule/inhibitor is primarily used for Phosphorylation & Dephosphorylation applications.

Synonym(s):

STAT5 Inhibitor III, Pimozide, 1-(1-(4,4-Bis(4-fluorophenyl)butyl)-4-piperidinyl)-1,3-dihydro-2H-benzimidazol-2-one

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About This Item

Empirical Formula (Hill Notation):
C28H29F2N3O
CAS Number:
Molecular Weight:
461.55
MDL number:
UNSPSC Code:
12352200
NACRES:
NA.77

Quality Level

Assay

≥98% (HPLC)

form

solid

manufacturer/tradename

Calbiochem®

storage condition

OK to freeze
protect from light

color

white

solubility

DMSO: 50 mg/mL

shipped in

ambient

storage temp.

−20°C

SMILES string

O=C1NC2=CC=CC=C2N1C3CCN(CCCC(C4=CC=C(F)C=C4)C5=CC=C(F)C=C5)CC3

InChI

1S/C28H29F2N3O/c29-22-11-7-20(8-12-22)25(21-9-13-23(30)14-10-21)4-3-17-32-18-15-24(16-19-32)33-27-6-2-1-5-26(27)31-28(33)34/h1-2,5-14,24-25H,3-4,15-19H2,(H,31,34)

InChI key

YVUQSNJEYSNKRX-UHFFFAOYSA-N

General description

A cell-permeable and orally available diphenylbutylpiperidine class of psychotropic drug with antagonistic activity against DAT (dopamine transporter) as well as several postsynaptic receptors, including D1, D2, D3, D4, α1-/α2-adrenergic, and 5-HT2A receptors. In addition to its antipsychotic property, Pimozide is shown to inhibit the constitutive STAT5 Tyr694 phosphorylation (5 to 10 µM for 3h) and transcription activity (5 µM for 18 h) in Bcr-Abl+ K562 and KU812 cultures, while exhibiting little activity against IFNα-stimulated STAT1 phosphorylation or LIF-stimulated STAT3 phosphorylation in K562 cells (10 µM 1 h pretreatment). The mechanism of STAT5 inhibition is currently unknown and Primozide is reported to exhibit little inhibitory activity against cellular Bcr-Abl autophosphorylation or the kinase activities of Abl1 (Wt & T315I), Hck, Lyn A/B, and Src (≤7%) in cell-free kinase assays. Shown to exhibit selective antiproliferative activity against K562, KU812, and primary bone marrow mononuclear cells from CML patients (by >80%; 10 µM for 48 h), but not peripheral blood mononuclear cells from healthy individuals, due to G0/G1 cell cycle arrest and apoptosis induction.
A cell-permeable and orally available diphenylbutylpiperidine class of psychotropic drug with antagonistic activity against DAT (dopamine transporter) as well as several postsynaptic receptors, including D1, D2, D3, D4, α1-/α2-adrenergic, and 5-HT2A receptors. In addition to its antipsychotic property, Pimozide is shown to inhibit the constitutive STAT5 Tyr694 phosphorylation (5 to 10 µM for 3h) and transcription activity (5 µM for 18 h) in Bcr-Abl+ K562 and KU812 cultures, while exhibiting little activity against IFNα-stimulated STAT1 phosphorylation or LIF-stimulated STAT3 phosphorylation in K562 cells (10 µM 1 h pretreatment). The mechanism of STAT5 inhibition is currently unknown and Primozide is reported to exhibit little inhibitory activity against cellular Bcr-Abl autophosphorylation or the kinase activities of Abl1 (Wt & T315I), Hck, Lyn A/B, and Src (≤7%) in cell-free kinase assays. Shown to exhibit selective antiproliferative activity against K562, KU812, and primary bone marrow mononuclear cells from CML patients (by >80%; 10 µM for 48 h), but not peripheral blood mononuclear cells from healthy individuals, due to G0/G1 cell cycle arrest and apoptosis induction. Acts as a selective and non-competitive inhibitor of human USP1/UAF1 and USP7 activities (IC50 = 2 and 47 µM, respectively) with no effect on UCH-L1 and UCH-L3 (IC50 >500 µM).

Packaging

Packaged under inert gas

Warning

Toxicity: Regulatory Review (Z)

Reconstitution

Following reconstitution, aliquot and freeze (-20°C). Stock solutions ar stable for up to 6 months at -20°C.

Other Notes

Chen, J., et al. 2011. Chem. Biol18, 1390.
Nelson, E.A., et al. 2011. Blood117, 3421.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

573110-100MG:
573110-1.1ML:
573110-MG:


Certificates of Analysis (COA)

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