Mass-Labelled PCB Syringe Spike Solution, 1.2ml, nonane

Isocaffeine (1,3,9-Trimethylxanthine), neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no. 519-32-4

Propyl alcohol, 1g

Friedelan-3 alpha-ol, neat, Solvent-neat, Unit 2mg, # of units-1, Cas.no. 5085-72-3