2-Propenoic acid, 3-(3-nitrophenyl)- 3-Nitrobenzenepropenoic acid 3-Nitrocinnamic acid 555-68-0 AI3-08847 CCRIS 1667 Cinnamic acid, m-nitro Cinnamic acid, m-nitro- EINECS 209-104-2 NSC 5408 m-Nitrocinnamic acid