17 alpha(H),21 alpha(H)-30-Norhopane, 50µg/mL in Isooctane, 1ml

1-Methylbenz[a]anthracene, 50 µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 2498-77-3

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

2-Imidazolidone, 250mg