2,3,4,5-Tetrachlorophenol

Tricresyl phosphate, 100µg/ml in Toluene, 1ml

1,2,3,8-Tetrachlorodibenzofuran, 1.2ml x 50ug/ml, nonane

d4 C29 alpha alpha alpha (20R)-Ethylcholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no.