Semi-Volatile Standard Back Catalog number: 93817 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 72672 Chlorfluazuron Price on request 674528 Benzyldimethylhexadecylammonium chloride, 10.0 µg/ Price on request NK-LCS-O Mass-Labelled PCDD/PCDF Solution Mixture, 1.2ml, nonane Price on request