2,3,3',4,4',5,5'-Heptachlorobiphenyl (189) Back Catalog number: 66189 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11910.4-K-ME Morpholine,1000 µg/mL,MeOH,1mL, Price on request 93156 2,3-Benzofluorene Price on request 2514.7-100MG 4-Hydroxybenzoic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 99-96-7 Price on request