Ponceau 3R Back Catalog number: 72596 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2559.8-50-ME 1H,1H,2H,2H-Perfluorooctane sulfonic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 27619-97-2 Price on request C17774500 2,4,5-Trichlorophenol, certified, 0.1g Price on request 10913.10-100-ME Sulfamethoxazole-d4 (benzene-d4),100 µg/mL,MeOH,1mL Price on request