4,4’-Dibromobiphenyl Back Catalog number: 92199 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended M0220 4,4'-Diaminodiphenylmethane, >98%, 25g Price on request 59832 Metals Mix #2 Price on request DF-IS-A Mass-Labelled PCDD Internal Standard Solution, 1.2ml x 1ug/ml, nonane Price on request