139182-76-6 4-Pyridinol, 2,3-dimethoxy-6-(10-methoxy-3,7,9,11-tetramethyl-2,5,7,11-tridecatetraenyl)-5-methyl-, 1-oxide, (S-(R*,R*-(all-E)))- Piericidin B(sub 1) N-oxide Piericidin B1 N-oxide