WS Trace Elements #1 Back Catalog number: 55012 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 680523 2-n-Nonylphenol-di-ethoxylate, 100 µg/ml, Acetone Price on request 3567.22-10MG 5,7,12,14-Pentacenetetrone, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 23912-79-0 Price on request Q60016751 Custom Chloroparaffin C10-C13, 51,5% Cl, 1000µg/mL in Cyclohexane, 1ml Price on request