Catalog Number: 4445
Chemical Name: 2-Methoxy-N-(3-methyl-2-oxo-1,2,3,4-tetrahydroquinazolin-6-yl)benzenesulfonamide
Biological Activity
Potent BET bromodomain inhibitor; exhibits inhibitory activity at bromodomain-containing protein (BRD) 2 and BRD4 (IC50 values are 98 and 220 nM respectively). Induces apoptosis and G1 cell cycle arrest in BET inhibitor-sensitive cell lines (MV4;11). Also downregulates Aurora B expression in MV4;11 cells. Cell permeable.
External Portal Information
Chemicalprobes.org is a portal that offers independent guidance on the selection and/or application of small molecules for research. The use of PFI 1 is reviewed on the chemical probes website.
Technical Data
  • M.Wt:
    347.39
  • Formula:
    C16H17N3O4S
  • Solubility:
    Soluble to 50 mM in DMSO
  • Purity:
    >98%
  • Storage:
    Store at RT
  • CAS No:
    1403764-72-6
The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis. All Tocris products are intended for laboratory research use only.
Additional Information
Licensing Caveats:
This probe is supplied in conjunction with the Structural Genomics Consortium. For further characterization details, please visit the PFI 1 probe summary on the SGC website.
Background References
  1. Identification of a chemical probe for bromo and extra c-terminal bromodomain inhibition through optimization of a fragment-derived hit.
    Fish et al.
    J.Med.Chem. [Epub ahead of print], 2012;
  2. PFI-1 - a highly selective protein interaction inhibitor targeting BET bromodomains.
    Picaud et al.
    Cancer Res. [Epub ahead of print], 2013;

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