(Z,Z)-1,6-Bis(4-methylphenyl)-3,4-dihydroxy-2,4-hexadiene-1,6-dione 139266-62-9 2,4-Hexadiene-1,6-dione, 1,6-bis(4-methylphenyl)-3,4-dihydroxy-, (Z,Z)- BRN 5442430