o-Toluidine, 100 µg/ml, Acetonitrile, 1ml Back Catalog number: 679892 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 57014 Silicon (Si), 1000µg/ml in 2%-HNO3/Water, 100ml Price on request 1044.13-K-IO n-Heptylcyclohexane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 5617-41-4 Price on request 0325.14-10MG 9-Hydroxyphenanthrene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 484-17-3 Price on request