13C3-Caffeine, 100 µg/ml, Methanol, 1ml

1,3,4-d3-2-Isopropylthioxanthone, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.

Octanoic acid (Caprylic), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 124-07-2

4-Chlorobenzaldehyde