EPA Method 8040 - Surrogate Standard Back Catalog number: 80403 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2533.11-100-ME (2RS)-2-(4-Ethylphenyl)propanoic acid, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 3585-52-2 Price on request L10360000AL Azinphos-ethyl, 10µg/mL in Acetonitrile, 10ml Price on request 96558 Desipramine Price on request