"Dioxin-Like" PCBs Calibration Kit , 7 x 500ul, nonane Back Catalog number: WP-CVS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended B4302 Bis(2-ethylhexyl) Isophthalate, >98%, 25g Price on request R250202 all-trans-Retinoic Acid-d5 (major), 1mg Price on request 71991 2,4-Dimethylheptane Price on request