L-Methionine, 100mg Back Catalog number: 680418 Manufacturer: HPC STANDARDS GmbH Availability: In the manufacturer's stock Price on request - + Recommended C15987122 Perfluorooctane sulfonic acid potassium salt, 100mg Price on request 2601.16-200-T 1,2,3,6,7,8-Hexahydropyrene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 1732-13-4 Price on request 0262.20-200-AN Benzo[a]fluoranthene,200 µg/mL,acetonitrile,1mL, Price on request