ChemNet > CAS > 74472-40-5 2?2'? 3?4?6?6'-hexachlorobiphenyl? ? 1?1'-??????? 2?2'? 3?4?6?6'-hexachloro-? 2?2'?3?4?6?6'-???????-1?1'-??????? 2?2'?3?4?6?6'-PCB? 74472-40-5
ChemNet > CAS > 74472-40-5 2?2'? 3?4?6?6'-hexachlorobiphenyl? ? 1?1'-??????? 2?2'? 3?4?6?6'-hexachloro-? 2?2'?3?4?6?6'-???????-1?1'-??????? 2?2'?3?4?6?6'-PCB? 74472-40-5