Sulfadimethoxine, certified, 0.25g

2-Hydroxy Fluorene-d9, 1mg

Thiophene/2-Methylthiophene (2:1) in isooctane/Toluene(3:1); Units: 5x1mL ampoules, 1x10mL screw-capped bottle Chiron No. Concentration µgS/g (ppm) Wt.% S-4056-0 Blank 0 S-4056-5 5

(13C12)Isodrin, 1.2mL x 100ug/mL, nonane