4‐[(1‐Cyclohexenyl)nitromethyl]‐2‐(3,4‐methylenedioxyphenyl)‐3‐nitro‐3,4‐dihydro‐2H‐1‐benzopyran

The crystal structure determination of C 23 H 22 N 2 O 7 shows that the mutual dispositions of the H atoms attached to the four successive chiral centres are gauche, gauche and trans.