Multi-Elements Mix Back Catalog number: 50155 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 71648 Propionic acid isobutyl ester Price on request 8983.12-10-10AN Tribufos , 10µg/mL, Solvent-ac.nitrile, Unit 1mL, # of units-1, Cas.no. 78-48-8 Price on request 70243 Pentachlorophenol, 1000µg/ml in MeOH, 1ml Price on request