The chemical with the SMILES CSc1nnc(NC(=O)c2cc3ccccc3oc2=O)s1 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}.
CSc1nnc(NC(=O)c2cc3ccccc3oc2=O)s1
CSc1nnc(NC(=O)c2cc3ccccc3oc2=O)s1
N-(5-methylsulfanyl-1,3,4-thiadiazol-2-yl)-2-oxochromene-3-carboxamide