EPA Method 524.3 - Internal Standard Back Catalog number: 95488 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 685081 1,3-Diethylbenzene, 100mg Price on request 675689 Proquinazid, 50mg Price on request 1869.8-K-CY 1,1-Dimethylcyclohexane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 590-66-9 Price on request