Internal Standard Stock Solution, 1.2ml, nonane

tert-Butyl hydroquinone (TBHQ)

GLC Reference standard 569-C, 100mg

5,6-Dihydro-4-hydroxy-11H-indolo[2,3-f]naphthalene, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.