alpha-Cyhalothrin,10 µg/mL,acetonitrile,1mL,

(±)-Chlorophacinone-d4 (indanedione-4,5,6,7-d4)

Benz[a]anthracene, 1000 µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 56-55-3

Difloxacin hydrochloride, 100 µg/ml, Methanol, 1