Hexavalent Chromium (Cr +6) Back Catalog number: 50741 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 8807.24-200-T Naphtho[1,2-k]fluoranthene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 238-04-0 Price on request 93187 EPA Method 526 Surrogate Standard Price on request 9498.13-100-ME Propyphenazone-d3 (2N-methyl-d3), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 162935-29-7 Price on request