Pyrethrins, 100 µg/ml, Acetonitrile, 1ml

Linear Alkyl Benzene Sulfonate Stock solution, ISO, 1000µg/ml, Solvent-water, Unit 25mL, # of units-5, Cas.no. 69669-44-9

Benzo[e]pyrene, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 192-97-2

d4 C29 alpha alpha alpha (20R)-Ethylcholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no.