1-Isocyanato-4-nitrobenzene 100-28-7 4-Nitrophenyl isocyanate AI3-28253 Benzene, 1-isocyanato-4-nitro- EINECS 202-836-3 Isocyanic acid, p-nitrophenyl ester Isocyanic acid, p-nitrophenyl ester (8CI) NSC 9800 p-Nitrophenyl isocyanate p-Nitrophenylisocyanate