EPA Method 8032 Internal Standard Back Catalog number: 80303 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2587.32-10UG Dinaphtho[2,1,8,7-defg;2',1',8',7'-opqr]pentacene, neat, Solvent-neat, Unit ca. 10µg , # of units-1, Cas.no. 188-91-0 Price on request 683769 Dimethyl-n-octadecylamine, 1000mg Price on request 79226 4,4’-Methylenebis(cyclohexyl isocyanate) Price on request