68540-94-3 Butanamide, N,N'-(3,3'-dimethyl(1,1'-biphenyl)-4,4'-diyl)bis(3-oxo-, ion(2-), disodium EINECS 271-328-1 N,N'-(3,3'-Dimethyl(1,1'-biphenyl)-4,4'-diyl)bis(3-oxobutanamide), disodium salt N,N'-(3,3'-Dimethyl(1,1'-biphenyl)-4,4'-diyl)bis(3-oxobutyramide),disodium salt