Laboratory performance check

2,3,4,5,6-Pentachlorophenol-13C6, 1000µg/ml in Isopropanol, 1ml

n-Octacosane, ?13C: -29.85, 150ug/ml, Solvent-cyclohexane, Unit 1mL, # of units-10, Cas.no. 630-02-4

Phenylparaben, see "Parabens", 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 17696-62-7