4,5-Methylenephenanthrene Back Catalog number: 79615 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-D Mass-Labelled PCDD/PCDF Internal Standard Solution, 1.2ml, nonane Price on request 9388.12-10MG 2,2',5,6'-Tetrachlorobiphenyl, neat, Solvent-neat, Unit 10MG, # of units-1, Cas.no. 41464-41-9 Price on request 2941.9-100-NN alpha-Endosulfan-d4 (1,1,5,5-d4),100 µg/mL,n-nonane,1mL, Price on request