beta-HCH, 100 µg/ml, Methanol, 1ml Back Catalog number: 680443 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended 683091 2,3,5-Trimethacarb, 100 µg/ml, Acetonitrile, 5ml Price on request ME 20300 Aqueous Ethanol Standard (3,0g/l), 10 x 1,2ml Price on request 70222 Naphthalene Price on request