Monobenzyl phthalate-3,4,5,6-d4, 100µg/ml in MeOH, 1ml

1-Ethyl-3-methylimidazolium Ethyl Sulfate, 5g

4-tert-Octylphenol, certified, 0.25g

x of 4-Nonyl- and 4-t-Octylphenols ethoxylates, 20/4µg/ml in Acetone, 1ml