Custom PAH Mix, 6 anal., in MeOH, 4,5ml Certan Back Catalog number: DREQ60000255 Availability: In the manufacturer's stock Price on request - + Recommended 677417 4-Aminobenzenesulfonic acid, 250mg Price on request 675137 Carfentrazone (free acid), 100 µg/ml, Acetonitril Price on request 681525 Fenvalerate, 100 µg/ml, Acetonitrile, 5ml Price on request