EPA Method 531.1 Individual Analytes Back Catalog number: 30041 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended F265500 Fensulfothion Oxon, 50mg Price on request 9853.20-K-ME Chlorphenamine maleate, , Solvent-, Unit , # of units-, Cas.no. 113-92-8 (132-22-9 free base) Price on request 1534.20-K-T Perylene-d12, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 1520-96-3 Price on request