EPA Method 551Mix “A” Back Catalog number: 30194 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3086.16-500-IO 4,6-Diethyldibenzothiophene, 500µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 132034-91-4 Price on request 11973.12-50MG Memantine hydrochloride,neat,neat,50mg, Price on request 2268.12-5MG 2,2',3,3',4,4',5,5'-Octachlorobiphenyl, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 35694-08-7 Price on request