61281-37-6 64121-95-5 66211-45-8 Benzo(3,4)cycloocta(1,2-f)(1,3)benzodioxole, 5,6,7,8-tetrahydro-1,2,3,13-tetramethoxy-6,7-dimethyl-, stereoisomer Schisandrin B Schizandrin B Wuweizisu B gamma-Schisandrin gamma-Schizandrin