beta-Endosulfan, 100 µg/ml, Acetonitrile, 5ml

p-Terphenyl-d14, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 1718-51-0

Methyl eicosanoate (Methyl arachidate), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 1120-28-1

10:2 Di-PAPS-d4, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no.