TFA; Trifluoroacetic acid, 99,9%, 250g Back Catalog number: 2121-3-02:250G Availability: In the manufacturer's stock Price on request - + Recommended 95589 Petroleum Marker Standard Price on request 3371.10-100 Dichlofenthion, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 97-17-6 Price on request 683847 Fenfuram, 100 µg/ml, Acetonitrile, 5ml Price on request