1,1,1,2-Tetrafluoroethane, 20mg/mL in MeOH, 1ml

4-Ethylcatechol, 100mg

1,2,4,5-Tetramethylbenzene

4-Hydroxyphenylacetic acid, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 156-38-7