4-AMino-1-phenylpyrazolo[3,4-d]pyriMidine

4-AMino-1-phenylpyrazole[3,4-d]pyriMidine (PP 3) is an EGFR tyrosine kinase inhibitor with an IC50 of 2.7 μM. It is a negative control for the Src kinase inhibitor, PP 2.