Formaldehyde (2 ppm)

1,2,4-Trimethylcyclohexane, isomer mix, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 2234-75-5

Glycerol

Native PCDD/PCDF Solution/Mixture, 1.2ml, nonane