2,3,7,8-Tetrachlorodibenzo-p-dioxin

alpha alpha alpha (20R,24R)-24-Ethylcholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 62446-14-4

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Light White Oil (less than 20mg/kg S) Unit : 10mL screw-capped bottle Light White Mineral Oil Heavy White Mineral Oil (20 cSt at 40°C) (70 cSt at 40°C)

n-Butyl iso-pentyl phthalate (n-Butyl 3-methylbutyl phthalate), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 144648-76-0