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Key Documents

P0122

Sigma-Aldrich

Pifithrin-μ

≥97% (HPLC), solid

Synonym(s):

2-Phenylethynesulfonamide, PFTμ

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About This Item

Empirical Formula (Hill Notation):
C8H7NO2S
CAS Number:
Molecular Weight:
181.21
MDL number:
UNSPSC Code:
12352200
PubChem Substance ID:
NACRES:
NA.77

Quality Level

Assay

≥97% (HPLC)

form

solid

storage condition

desiccated

solubility

DMSO: soluble >10 mg/mL, clear
H2O: insoluble

storage temp.

2-8°C

SMILES string

NS(=O)(=O)C#Cc1ccccc1

InChI

1S/C8H7NO2S/c9-12(10,11)7-6-8-4-2-1-3-5-8/h1-5H,(H2,9,10,11)

InChI key

ZZUZYEMRHCMVTB-UHFFFAOYSA-N

Application

Pifithrin-μ has been used:
  • to treat microglial cell line to analyse its neuroprotective effect on M1-like and M2-like phenotype
  • as heat shock protein (HSP)-70 inhibitor, to treat transfected Marc-145 cells
  • to inhibit heat shock cognate 70 (Hsc70) to elucidate heat shock chaperones mouse embryonic stem cells

Biochem/physiol Actions

Pifithrin-μ is an inhibitor of p53 binding and anti-apoptotic, which directly inhibits p53 binding to mitochondria as well as to Bcl-xL and Bcl-2 proteins. PFTμ rescues cells from lethal γ-irradiation-induced cell death. Because pifithrin-μ shuts down only the p53-mitochondrial pathway without affecting the transcriptional functions of p53, it is superior to pifithrin-α.
Pifithrin-μ(PFT-μ) has neuroprotective capabilities against cell death in a preclinical model of hypoxia-ischemia (HI)-induced neonatal encephalopathy. It inhibits nuclear factor-ΙB (NF-ΙB) pathway by inhibiting the interaction of molecular chaperone heat shock protein (HSP)-70 with its substrates.

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

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Marisa Granato et al.
The international journal of biochemistry & cell biology, 79, 393-400 (2016-09-14)
Burkitt's lymphoma is an aggressive B cell lymphoma whose pathogenesis involves mainly c-Myc translocation and hyperexpression, in addition to antigen-independent BCR signaling and, in some cases, EBV infection. As result of BCR signaling activation, the PI3K/AKT/mTOR pathway results constitutively activated
Christophe Bignon et al.
Biomolecules, 9(1) (2018-12-29)
In this paper we review our recent findings on the different interaction mechanisms of the C-terminal domain of the nucleoprotein (N) of measles virus (MeV) NTAIL, a model viral intrinsically disordered protein (IDP), with two of its known binding partners
Femke M Feringa et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 43(3), 347-358 (2022-12-15)
The presynaptic proteins MUNC18-1, syntaxin-1, and SNAP25 drive SNARE-mediated synaptic vesicle fusion and are also required for neuronal viability. Their absence triggers rapid, cell-autonomous, neuron-specific degeneration, unrelated to synaptic vesicle deficits. The underlying cell death pathways remain poorly understood. Here
Tomoya Uchimura et al.
Frontiers in endocrinology, 10, 529-529 (2019-08-21)
Medaka (Oryzias latipes) are teleost fish with a XX/XY sex determination system. Recently, it was reported that high temperature (HT) induced the masculinization of XX medaka by increasing the levels of cortisol, a major glucocorticoid produced by interrenal cells in
The anti-inflammatory effects of the small molecule pifithrin-mu on BV2 microglia
Fleiss B, et al.
Developmental Neuroscience, 37(4-5), 363-375 (2015)

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