Pifithrin-alpha 20μM R07 exp390

Claimed to inhibit p53 but has p53-independent effects, cyclic form may increase stem cell reprogramming

  • Class / Subclass 1: Signal Transduction / Apoptosis Inhibitor

Protein References

  • PubChem Name: Pifithrin-alpha
  • Synonyms: Pifithrin hydrobromide; PFTα hydrobromide
  • CAS #: 63208-82-2
  • PubChem CID: 9929138
  • IUPAC: 2-(2-imino-4,5,6,7-tetrahydro-1,3-benzothiazol-3-yl)-1-(4-methylphenyl)ethanone;hydrobromide
  • INCHI Name: InChI=1S/C16H18N2OS.BrH/c1-11-6-8-12(9-7-11)14(19)10-18-13-4-2-3-5-15(13)20-16(18)17;/h6-9,17H,2-5,10H2,1H3;1H
  • INCHI Key: HAGVCKULCLQGRF-UHFFFAOYSA-N
  • Molecular Weight: 367.3
  • Canonical SMILES: CC1=CC=C(C=C1)C(=O)CN2C3=C(CCCC3)SC2=N.Br
  • Isomeric SMILES: N/A
  • Molecular Formula: C16H19BrN2OS

Protein Supplier

  • Supplier Name: Sigma-Aldrich
  • Catalog #: P4359
  • Lot #: N/A

Protein Characterization

  • HRMS (ESI-TOF) m/z: (M+H)+ Calcd for C16H18N2OS 287.12126; found 287.12088

Dose Response Curve

  • Platform ID: pifithrin-alpha
  • Min: -5.8398; Max: 30.3674





IC Concentration (µM)
IC10 N/A
IC20 N/A
IC30 N/A
IC40 N/A
IC50 N/A
IC60 N/A
IC70 N/A
IC80 N/A
IC90 N/A


  • Round: 07
  • Dose: 20µM
  • Days of incubation: 8
  • Doublings: 6.0
  • Numbers of reads: 20313436
Sensitive/Resistant hits (FDR<0.05)CRANKSScore PlotTop 30 GenesScreen SimilarityTop 30 Sensitive GO termsTop 30 Resistant GO terms
1/0ScoresViewViewViewViewView

  • Last modified: 2026/01/07 22:37
  • by 127.0.0.1