n-Butyltri-n-pentyltin,1000 µg/mL,isooctane,1mL,

Primary Freon Standard

Metolachlor ESA sodium salt, 100µg/ml in MeOH, 1ml

Bis(4-hydroxyphenyl) Sulfone (d4major), 2,5mg (Bisphenol S-d4)