p-Coumaric acid ethyl ester, >98%, 20mg

Benzo[b]naphtho[1,2-d]furan, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 205-39-0

Ethanol standard in water,2.0g/L,water, 1.5mL

Levulinic acid, 250mg