PCB No. 21, 100µg/ml in Isooctane, 1ml Back Catalog number: 66021 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681242 Pefurazoate, 5mg Price on request 11732.12-100-IO 2,2',3,3',4,5-Hexachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request S-4769-30-10T Custom mix of PBB, 10 components each 0.03mg/mL in a suitable solvent: 3091.12 4-Bromobiphenyl PBB-3 3096.12 4,4'-Dibromobiphenyl PBB-15 3097.12 2,2',5-Tribromobiphenyl PBB-18 3103.12 2,2',5,5'-Tetrabromobiphenyl PBB-52 3107.12 2,2',4,5',6-Pentabromo Price on request