4,4'-DDT (ring-13C12,99%) 100 µg/mL in Nonane, 1,2ml Back Catalog number: CLM-1281-1.2 Availability: In the manufacturer's stock Price on request - + Recommended 3481.7-100 Phorate-oxon , 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 2600-69-3 Price on request VHG-INH41K-100 Ammonium Standard: NH4+, 1000µg/ml in Water, 100ml Price on request 66066 2,3’,4,4’-Tetrachlorobiphenyl (66) Price on request