CAS No. 5334-30-5

Batch: Purity:99.05
4-AMino-1-phenylpyrazolo[3,4-d]pyriMidine Chemical Structure
Chemical Structure
Check the 4-AMino-1-phenylpyrazolo[3,4-d]pyriMidine product page for in-depth specifications, including solubility, stock solutions, MOA, and working concentrations.

Chemical Information

IUPAC Name 1-phenylpyrazolo[3,4-d]pyrimidin-4-amine
CAS Number 5334-30-5
Molecular Formula

C11H9N5

Molecular Weight (MW) 211.22
InChIKey KKDPIZPUTYIBFX-UHFFFAOYSA-N

Ordering Information

Biological Activity

4-Amino-1-phenylpyrazolo[3,4-d]pyrimidine (PP3) is an epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor with an IC50 of 2.7 μM. It functions as an inactive structural analogue and negative control for the Src family kinase inhibitor PP2. By lacking potent Src inhibitory activity, PP3 serves as a valuable control to distinguish specific Src-mediated phosphorylation events and downstream cellular signaling phenotypes from non-specific chemical effects in biological studies.[1][2]

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 42 mg/mL (198.84 mM)
(Moisture-contaminated DMSO may reduce solubility. Use fresh, anhydrous DMSO. The recommended stock concentration is 10 mM in DMSO.)
Ethanol 5 mg/mL
Water 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.