Anion QC Mix Back Catalog number: 54223 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-12389-S 1,2,3,8,9-Pentachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Price on request 9124.12-50-IO 2-Bromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 7025-06-1 Price on request 98862 Formaldehyde-DNPH Level 5 (5ug/mL) Price on request