102601-40-1 2,6,11,15-Tetramethyl-2,4,6,8,10,12,14-hexadecaheptaenedioic acid compound with pyridine (1:1) 8,8'-Diapo-.psi.,.psi.-carotenedioic acid, compd. with pyridine (1:2) (9IC) AIDS-157944 AIDS157944 NSC657642