P0122
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
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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.
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
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