Demeton-O, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 680857 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-J100 Mass-Labelled PCDD Internal Standard Solution, 1.2ml, nonane Price on request 91968 Aroclor 1242 Price on request 10267.12-100-IO 2’,3,4-Tribromodiphenyl ether,100 µg/mL,isooctane,1mL, Price on request