Ranitidine hydrochloride,1000 µg base/mL,MeOH,1mL,

Atrazine-d5, 100µg/ml in Acetone, 1ml

9-trans,12-trans-Octadecadienoic acid, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 506-21-8

3,3',5,5'-Tetrabromobisphenol S dimethyl ether,50 µg/mL ,toluene,1mL