2,4,6,8-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane Back Catalog number: DF-2468-S Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 19049 EPA Method 507 Surrogate Standard Price on request M3PFBA Perfluoro-n-[2,3,4-13C3]butanoic acid, 50µg/ml in MeOH, 1,2ml Price on request 2372.7-K-IO Guaiacol, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 90-05-1 Price on request