EPA Method 550 Analytes Back Catalog number: 31051 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10211.14-100MG Benzyl 4-hydroxybenzoate, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 94-18-8 Price on request 2540.7-50MG Paraxanthine, neat, Solvent-neat, Unit 50mg, # of units-1, Cas.no. 611-59-6 Price on request 672827 Oxyfluorfen, 100mg Price on request