Phthalic acid, bis-butyl ester, certified, 0.5g

Levoglucosan, 1000µg/mL, Solvent-Tetrahydrofuran, Unit 1mL, # of units-5, Cas.no. 498-07-7

Custom mix of C0-C4 fluoranthenes and pyrenes 0260.16 Fluoranthene 0235.16 Pyrene 0289.17 1-Methylfluoranthene 0290.17 2-Methylfluoranthene 0291.17 3-Methylfluoranthene 0304.17 1-Methylpyrene 1218.18 3-Ethylfluoranthene 1038.18 4,5-Dimethylpyrene 16

Erythromycin-13C,d3, 1mg