CAS No. 444930-42-1

Batch: Purity:99.97
PCNA-I1 Chemical Structure
Chemical Structure
Check the PCNA-I1 product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

CAS Number 444930-42-1
Molecular Formula

C17H14N2O2S

Molecular Weight (MW) 310.37
SMILES CC1=C(SC=C1)C(=O)N\N=C\C2=C(O)C3=CC=CC=C3C=C2

Ordering Information

Biological Activity

PCNA-I1 is a selective inhibitor of proliferating cell nuclear antigen (PCNA) that targets PCNA chromatin association. By binding to PCNA trimers, PCNA-I1 disrupts essential DNA replication pathways and suppresses cellular proliferation. Downstream, this compound induces DNA damage, apoptosis, and autophagy in prostate cancer cells, resulting in marked growth inhibition across multiple tumor cell types. [1]

How to Prepare Stock Solution?

Concentration Volume Mass
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Solubility

Batch:
All in vitro solubility values are batch-tested experimental data (non-literature values).
Solvent Solubility & Note
DMSO 62 mg/mL (199.76 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Water Insoluble
Ethanol Insoluble
FAQ
Q: Why does a DMSO stock precipitate in media/saline?
A: It is caused by unheated aqueous media (supersaturation), local solvent shock, or incorrect mixing sequence.
How to fix it?
  • Preheat media/saline to 37°C.
  • Mix rapidly (pipette/vortex) upon addition.
  • For complex mixes, always add the aqueous phase last.
  • Re-dissolve minor precipitates with a 37°C water bath and sonication (≤30 min).
Note: Technical data last updated: Sep 1, 2026.