The chemical with the SMILES representation of Cn1ncc2c(Nc3ccc(-c4ccccc4)cc3)ncnc21 is not an inhibitor of the protein kinase A (PKA).
The {#molecule|compound|chemical|molecular species|chemical compound!} with the {SMILES__description} {#representation of |!}{SMILES#} is {MUV-548#not &NULL}{MUV-548__names__noun}.
Cn1ncc2c(Nc3ccc(-c4ccccc4)cc3)ncnc21
Cn1ncc2c(Nc3ccc(-c4ccccc4)cc3)ncnc21
1-methyl-N-(4-phenylphenyl)pyrazolo[3,4-d]pyrimidin-4-amine