Methamidophos, 100μg/mL in Acetonitrile, 1ml Back Catalog number: 3443.2-100-AN Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended DF-23478-S 2,3,4,7,8-Pentachlorodibenzofuran , 1.2ml x 50ug/ml, nonane Price on request 9425.8-100-ME Valproic acid-d4, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 87745-17-3 Price on request 2661.12-K-IOX5 Arochlor 1232, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-5, Cas.no. 11141-16-5 Price on request