16891-54-6 2,3-Dimethoxy-6-(10-methoxy-3,7,9,11-tetramethyl-2,5,7,11-tridecatetraenyl)-5-methyl-4-pyridinol 4-Pyridinol, 2,3-dimethoxy-6-(10-methoxy-3,7,9,11-tetramethyl-2,5,7,11-tridecatetraenyl)-5-methyl- 4-Pyridinol, 2,3-dimethoxy-6-(10-methoxy-3,7,9,11-tetramethyl-2,5,7,11-tridecatetraenyl)-5-methyl-, (S-(R*,R*-(all-E)))- Piericidin B Piericidin B(sub 1)