Urs-12(13)-ene, 100µg/ml in Isooctane, 1ml

2,2',3,3',5,5',6,6'-Octachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane

Pristane/n-Heptadecane Control Standard/Whole Oil Control Mixture 4 Pristane/n-Heptadecane = 1:2 (1000µg Pristane and 2000µg n-Heptadecane in 1mL isooctane)

3-Isopropyl-1-methylbenzene (m-Isopropyltoluene), 1000µg/mL, Solvent-hexane, Unit 1mL, # of units-1, Cas.no. 535-77-3