2-Methyl-4-isothiazolin-3-on, certified, 0.1g

Tris(2-chloroethyl) phosphate-d12, 1.2ml x 50ug/ml, toluene

Citalopram hydrobromide, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 59729-32-7

EPA Method 552 Surrogate Standard Methyl Ester