525 Internal Standard Back Catalog number: 96263 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 80204 EPA Method 8020B Analytes Mix #2 Price on request 2527.11-100-ME 4-Isobutylbenzoic acid, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 38861-88-0 Price on request 679891 4,4'-Methylene-bis(2-chloroaniline), 100 µg/ml, A Price on request