PCB No. 189, 10µg/ml in Isooctane, 10ml Back Catalog number: L20018900IO Availability: In the manufacturer's stock Price on request - + Recommended 71646 Isobutyl propionate Price on request 9313.12-100-IO 2,3,3'-Trichlorobiphenyl, 100 µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 38444-84-7 Price on request 72408 Butyric acid Price on request