Methylparaben, 100 µg/ml, Acetonitrile, 5ml

13C, 15N2-Semicarbazide hydrochloride, 10mg

Aflatoxin B2, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 7220-81-7

Hexachlorobenzene (13C6, 99%), 100µg/ml in Nonane, 1,2ml