"Dioxin-Like" PCBs Calibration Kit , 7 x 500ul, nonane Back Catalog number: WP-CVS Manufacturer: Wellington Laboratories Availability: 1 week Price on request - + Recommended 3656.6-K-IO 1,2,4,5-Tetrachlorobenzene, 1000µg/mL in Isooctane, 1ml Price on request 1618.32-10MG 3ß-Acetoxybetulinic acid, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 10376-50-8 Price on request VHG-SDSL-15-100 Sulfur, 15µg/g (0.0015 wt%) in Diesel Fuel, 100ml Price on request