BHC (beta isomer-13C6), 50µg/ml in Nonane, 2x1,2ml Back Catalog number: S-FC103S-2X1.2ML Availability: In the manufacturer's stock Price on request - + Recommended 32003 EPA Method 500 Series Internal Std #4 Price on request 5:2SFTOH 1-Perfluoropentyl ethanol (5:2 secondary), 1.2ml x 50ug/ml, methanol Price on request 682177 Tiocarbazil, 100 µg/ml, Acetonitrile, 5ml Price on request