Demeton [O & S Isomers] Back Catalog number: 70957 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11701.12-100-IO 2,3',4',5-Tetrachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 1558.6-K-ME n-Hexane-d14, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 21666-38-6 Price on request 678454 Permethrin, 100 µg/ml, Acetonitrile, 5ml Price on request