PCB Congeners (10 ppm) Back Catalog number: 98003 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-1234689-S 1,2,3,4,6,8,9-Heptachlorodibenzofuran, 1.2ml x 50ug/ml, toluene Price on request 673677 Procymidone, 10.0 µg/ml, Ethyl acetate, 10ml Price on request 1847.12-100MG 2,3-Naphthalenedicarboxylic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 2169-87-1 Price on request