1,3-Dimethyl-2-imidazolidinone, 100mg

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Atrazine-d5 (ethyl-d5),100 µg/mL,acetonitrile,1mL,

6-Methylchrysene, 10µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 1705-85-7