Verification II Standard 1 Back Catalog number: 52019 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11931.12-10MG N-Ethyl-N-(2-hydroxyethyl)perfluorooctylsulphonamide,neat,neat,10mg, Price on request 71708 2-Chloroaniline Price on request 680124 Pentachlorobenzene, 100 µg/ml, Cyclohexane, 1ml Price on request