WHO PCB Extraction Standard, 100pg/µl in nonane, 1,2ml

Terbuthylazine-d5 (ethyl-d5), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 222986-60-9

Carbofuran, 100µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 1563-66-2

cis-4-(2-Hydroxyphenyl)-2-oxobut-3-enoic acid, Please inquire, Solvent-, Unit , # of units-, Cas.no. 31966-72-0