PCB Congener Internal Standard Mix Back Catalog number: 94569 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1631.10-100MG Cimetidine sulphoxide dihydrochloride, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 54237-72-8 Price on request 0979.21-10-IO d4 Pregnane, 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 205529-77-7 Price on request 11418.19-10MG Procyclidine hydrochloride,neat,neat,10mg, Price on request