D7-Atrazine-desethyl, 10mg

n-Tridecane, ?13C: -33.47, 150ug/ml, Solvent-cyclohexane, Unit 1mL, # of units-10, Cas.no. 629-50-5

Sulfur in Isooctane - 0.001 Wt%

Chlorhexidine-d8 Dihydrochloride, 1mg