Benzthiazuron, 100 µg/ml, Methanol, 1ml

4-Ethylcatechol, 100mg

n-Nonadecane, ?13C: -34.60, 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-5, Cas.no. 629-92-5

1H,1H,2H,2H-Perfluorooctane sulfonic acid, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 27619-97-2