(1,1'-Biphenyl)-4-acetaldehyde, alpha-oxo- (9CI) 4-07-00-02509 (Beilstein Handbook Reference) 4-BIPHENYLGLYOXYALDEHYDE 4-Biphenylglyoxal 4974-58-7 BRN 1868689 Glyoxal, 4-biphenylyl- (6CI,7CI) NSC 53652 p-Phenylphenylglyoxal