≥98% (HPLC)

PF-05363047, N-(1,3-Dimethyl-2-oxo-6-pyrrolidin-1-ylbenzimidazol-5-yl)-2-methoxybenzamide, N-[2,3-Dihydro-1,3-dimethyl-2-oxo-6-(1-pyrrolidinyl)-1H-benzimidazol-5-yl]-2-methoxy-benzamide
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
PubChem Substance ID:
Pricing and availability is not currently available.

Quality Level


≥98% (HPLC)



mfr. no.



white to beige


DMSO: 2 mg/mL, clear (warmed)



storage temp.

room temp

SMILES string




InChI key



5, 25 mg in glass bottle

Biochem/physiol Actions

PFI-4 is an SGC chemical probe for the bromodomains of the BRPF (BRomodomain and PHD Finger containing) scaffolding protein BRPF1B. The BRPF proteins (BRPF1/2/3) assemble histone acetyltransferase (HAT) complexes of the MYST transcriptional coactivator family members MOZ and MORF. The BRPF1 protein is the scaffold subunit of the MYST acetyltransferase complex, which plays a crucial roles in DNA repair, recombination and replication as well as transcription activation. Mutations in MOZ, MORF, and BRPF1 have all been associated with cancer. BRPF1 exists in 2 different isoforms: BRPF1A and BRPF1B. PFI-4 specifically binds to BRPF1B with a Kd =13 nM as determined by ITC. It reduces recovery time in triple BRD cell construct in FRAP and is potent in cells with IC50 250nM, while showing no effect on BRPF1A. For full characterization details, please visit the PFI-4 probe summary on the Structural Genomics Consortium (SGC) website.

To learn about other SGC chemical probes for epigenetic targets, visit sigma.com/sgc

Features and Benefits

This compound is a featured product for Gene Regulation research. Click here to discover more featured Gene Regulation products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.
PFI-4 is an epigenetic chemical probe available through a partnership with the Structural Genomics Consortium (SGC). To learn more and view other SGC epigenetic probes, visit sigma.com/SGC.

Other Notes

This compound was developed by Pfizer for Gene Regulation research. To learn more about Sigma′s partnership with Pfizer and view other authentic, high-quality Pfizer compounds, visit sigma.com/bsm-pfizer.

To browse the list of other pharma-developed compounds and Approved Drugs/Drug Candidates, click here.

Legal Information

Sold for research purposes under agreement from Pfizer Inc.
Pfizer is a registered trademark of Pfizer, Inc.


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
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