PCB Mix 1 ppb Back Catalog number: 95019 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675426 Simazine, 250mg Price on request DF-248-S 2,4,8-Trichlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request 11186.8-10MG Caffeine-d9 (1,3,7-trimethyl-d9),neat,neat,10mg Price on request