Ferrous Iron Back Catalog number: 54541 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 57129 Copper (Cu) Price on request 8914.14-100-T 6-Methyl-2',3,4,4'-tetrachlorodiphenylmethane Price on request 2663.10-100 Toxaphene, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 8001-35-2 Price on request