The molecule is an oxo dicarboxylic acid that is 6-oxohepta-2,4-dienedioic acid substituted at position 4 by a nitro group. It is a C-nitro compound, an oxo dicarboxylic acid and a ketone. It is a conjugate acid of a 4-nitro-6-oxohepta-2,4-dienedioate.
(2E,4E)-4-nitro-6-oxohepta-2,4-dienedioic acid