Sebuthylazin-desethyl, 100 µg/ml, Acetonitrile,

Perfluoro-n-[1,2-13C2]decanoic acid (in acetonitrile), 1.2ml x 50ug/ml, acetonitrile

Ethyl-ß-D-6-glucuronide-d5, 100µg base/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no.

Arachidonic acid (5,8,11,14 all-cis), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 506-32-1