Multi-Element Calibration Standard-4 Back Catalog number: 50013 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9282.28-100-ME Sildenafil citrate,100 µg base/mL,MeOH,1mL Price on request 2152.24-100-T 2,9-Dimethylpicene, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 1679-02-3 Price on request 70584 Chlordene Price on request