PCB / ACs Standard Solution 19 components (EPA 8275A)_x000D_ 100ug/ml each of PCB 1 (2-Chlorobiphenyl) [CAS:2051-60-7] ; PCB 11 [CAS:2050-67-1] ; PCB 18 (2,2',5-Trichlorobiphenyl) [CAS:37680-65-2] ; PCB 26 [CAS:38444-81-4] ; PCB 31 (2,4',5-Trichlorobiphenyl) [CAS:16606-02-3] ; PCB 52 (2,2',5,5'-Tetrachlorobiphenyl) [CAS:35693-99-3] ; PCB 49 [CAS:41464-40-8] ; PCB 44 (2,2',3,5'-Tetrachlorobiphenyl) [CAS:41464-39-5] ; PCB 66 (2,3',4,4'-Tetrachlorobiphenyl) [CAS:32598-10-0] ; PCB 101 (2,2',4,5,5'-P