QCP-QCS-1 Back Catalog number: 59923 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended T542502 Topotecan-d6, 1mg Price on request 677539 Terbuthylazine-desethyl, 100mg Price on request DF-IS-A40 Mass-Labelled PCDD Internal Standard Solution, 1.2ml x 40ng/ml, nonane Price on request