trans-Nonachlor Back Catalog number: 79364 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended DF-IS-B40 Mass-Labelled PCDD/PCDF Internal Standard Solution, 1.2ml, nonane Price on request 72678 Estriol Price on request 71011 n-Dotriacontane Price on request