QC Check Sample Back Catalog number: 59250 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79607 1,2-Dimethylnaphthalene Price on request 1489.22-50-ME Pyrenyl-1-O-glucuronide, 50µg/mL, Solvent-methanol, Unit 50µg, # of units-1, Cas.no. 15417-05-2 Price on request 2314.9-100 Monuron, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 150-68-5 Price on request