tetracyanoquinodimethane2,5-Cyclohexadiene-1,4-diylidene-alpha,alpha'-dimalononitrile2,5-Cyclohexadiene-1,4-diylidenedimalononitrile2,5-Cyclohexadiene-delta(sup1alpha:4alpha)dimalononitrile2,5-Cyclohexadiene-delta1,alpha:4,alpha'-dimalononitrile7,7',8,8'-Tetracyanoquinodimethane7,7,8,8-Tetracyano-1,4-quinodimethan7,7,8,8-Tetracyano-p-quinodimethane7,7,8,8-TetracyanoquinodimethaneTCNQTetracyano-p-quinodimethane