Hexavalent Chromium (Cr +6) Back Catalog number: 50739 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79433 Heptachlor epoxide Price on request 51181 Iowa BTEX Price on request 1340.12-100-T 4-Nitrobiphenyl, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 92-93-3 Price on request