1,4-Benzenedicarboxylic acid, 2,5-dimethoxy-3-nitro-, dimethyl ester

1,4-Benzenedicarboxamide, 2,5-dimethoxy-N,N'-dimethyl-3,6-dinitro-

2,7-bis(methoxymethyl)-5,10-dimethoxy-3,8-dimethylpyrimido(4,5-g)quinazoline-4,9(3H,8H)-dione

2,5-Bis(methoxyacetamido)-3,6-bis(methylcarbamyl)-1,4-dimethoxybenzene