Paraben-Mix 1, 100 µg/ml, Methanol, 5ml

2,2,4,6-Tetrachlorobiphenyl (BZ-50)

Chrysene-d12, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 1719-03-5

Catechol