Doxepin hydrochloride, 100mg

2-Isobutyl-3,5-dimethylpyrazine and 2-isobutyl-3,6-dimethylpyrazine, Isomer mixture, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no.

EPA 8240B Calibration Standard

2-Chlorobenzoic acid