EPA Method 507 - Performance Check Solution Back Catalog number: 19137 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3307.19-K-IO Methyl octadecadienoate (9,11 + 10,12 c+tr) , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request 677019 Imidacloprid olefin, 10 µg/ml, Acetonitrile, 10m Price on request 8596.34 5 alpha(H),14ß(H),17ß(H),20R-3ß-Benzyloxycholestane, , Solvent-, Unit , # of units-, Cas.no. Price on request