1,1'-Biphenyl, 2-nitroso- 2-Nitroso-1,1'-biphenyl 2-Nitrosobiphenyl 2-Nitrosodiphenyl 21711-71-7 4-05-00-01822 (Beilstein Handbook Reference) BRN 2043847 Biphenyl, 2-nitroso- (6CI,8CI) CCRIS 2824 o-Nitrosobiphenyl