(+-)-N''-Cyano-N-(1-oxido-4-pyridyl)-N'-(1,2,2-trimethylpropyl)guanidine 83285-82-9 EINECS 280-367-3 Guanidine, N-cyano-N-4-pyridinyl-N''-(1,2,2-trimethylpropyl)-, N-oxide N-Cyano-N'-(pyridin-4-yl)-N''-(1,2,2-trimethylpropyl)guanidine N-oxide P-1368 Pinacidil pyridine N-oxide