Hexachlorobenzene, 100µg/ml in MeOH, 1ml

3,4-Dimethylphenol, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 95-65-8

N-Nitrosodimethylamine, 1g

alpha alpha alpha (24R)-4 alpha-Methyl-24-ethylcholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 53596-90-0