Sulfamethazine, 250mg

Emodin 8-glucoside, >90%, 10mg

Sulfur Calibr. Mix. Dibenzothiophene in White oil (20 cSt)Unit: 10mL screw-capped bottle Matrix White oil White Oil Concentration Isooctane Toluene 3 cSt

2,4-Dinitrophenol