Internal Standard Stock Solution, 1.2ml, nonane

1,2,4,5-Benzenetetracarboxylic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 89-05-4

Tetrachloroethene, 1000 µg/ml, Methanol, 1ml

Feruloylputrescine, 10mg