The molecule is a C-nitro compound that is 6-phosphonohexanoic acid in which the phosphono function is esterified with (4-nitrophenyl)methanol; a phosphonate transition state analogue with affinity for catalytic antibody 7B9. It is a C-nitro compound, a phosphonic ester and a carboxylic acid.
6-[hydroxy-[(4-nitrophenyl)methoxy]phosphoryl]hexanoic acid