5,5'-((1,1'-Biphenyl)-2,5-diylbis(oxy))bis(2,2-dimethylpentanoic acid) 5,5'-((1,1'-Biphenyl)-2,5-diylbis(oxy))bis(2,2-dimethylvaleric) acid 79520-77-7 CI 924 CI-924 EINECS 279-174-7 Pentanoic acid, 5,5'-((1,1'-biphenyl)-2,5-diylbis(oxy))bis(2,2-dimethyl-