.beta.-(p-Nitrophenyl)ethyl bromide 1-(2-Bromoethyl)-4-nitrobenzene 2-(4-Nitrophenyl)ethyl bromide 4-(2-Bromoethyl)nitrobenzene 5339-26-4 Benzene, 1-(2-bromoethyl)-4-nitro- NSC3493 p-Nitrophenethyl bromide