COD from KHP Back Catalog number: 54290 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended MDD-1234 1,2,3,4-Tetrachloro[13C12]dibenzo-p-dioxin , 1.2ml x 50ug/ml, toluene Price on request DF-IS-I200 Mass-Labelled PCDF Internal Standard Solution, 1.2ml, nonane Price on request 32151 Dibromochloromethane Price on request