alpha-HCH, 100 µg/ml, Acetonitrile, 5ml Back Catalog number: 678422 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended C16170500 Phthalic acid, bis-2-n-butoxyethyl ester, certified, 0.1g Price on request 0201.18-500-T Benz[a]anthracene, 500 µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 56-55-3 Price on request 675117 Phorate-oxon, 100 µg/ml, Cyclohexane, 1ml Price on request