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

Formaldehyd-DNPH, 100 µg/ml, Acetonitrile, 5ml

(+)-Matrine-d3, 2.5mg

Oxazepam-d5 (phenol-d5), neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 65854-78-6