2,3’,4,4’-Tetrachlorobiphenyl (66) Back Catalog number: 66066 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71679 tert-Butyl formate Price on request N-MEFOSA-M N-methylperfluoro-1-octansulfonamide, 50µg/ml in MeOH, 1,2ml Price on request 674917 18O4-Sodium perchlorate, 100 µg/ml, Water, 1ml Price on request