Caffeine, 100 µg/ml, Methanol, 1ml

2-Bromo-1,3,7,8-tetrachlorodibenzo-p-dioxin (>95%), 1.2ml x 48ug/ml, toluene

5-Fluoroacenaphthylene, 10µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 17521-01-6

Beryllium (Be)