2006-10-23T12:00:00.004c98957a-e5d6-4869-9166-4ffe407a57632019-01-14T11:15:24.24false(.+-.)-PCB 1491,1'-biphenyl, 2,2',3,4',5',6-hexachloro- (9CI)2,2',3,4',5',6-hexachlorobiphenyl2,2',4',5,5',6-hexachlorobiphenyl2,3,6,2',4',5'-hexachlorobiphenyl2,4,5,2',3',6'-hexachlorobiphenylPCB 1492,2',3,4',5',6-hexachlorobiphenyl (CB149)