Fenchlorphos, 100 µg/ml, Ethyl acetate, 5ml

1-Ethyl-4-methylbenzene (4-ethyltoluene, p-ethyltoluene), 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 622-96-8

5ß(H)-Cholan-24-ol, neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no. 3110-99-4

Selenium (Se)