PCB Congener Internal Standard Mix Back Catalog number: 94569 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1972.12-5MG 2,2',4,4',5,6'-Hexabromodiphenyl ether, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 207122-15-4 Price on request 95424A MSTFA Price on request 8841.8-K-IO 2-Propyl-3-methylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no. Price on request