Metals Standard Back Catalog number: 59617 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 96869 Heptachlor epoxide Price on request 2234.17-050-5AN Aflatoxin B2, 0.5 µg/ml, Solvent-acetonitrile, Unit 5mL, # of units-1, Cas.no. 7220-81-7 Price on request 98554 Formaldehyde (0.5 ppm) Price on request