D5-6PPD-quinone, 100µg/ml in Acetonitrile, 1ml Back Catalog number: 688151 Availability: In the manufacturer's stock Price on request - + Recommended EPA-1668LCS Labelled Compound Stock Solution, 1.2ml, nonane Price on request 674598 Fensulfothion, 10.0 µg/ml, Acetonitrile, 10ml Price on request HPCB-4007N 4-Hydroxy-2',3',4',5'-tetrachlorobiphenyl, 10mg Price on request