beta-Endosulfan-d4 (1,1,5,5-d4),100 µg/mL,n-nonane,1mL,

Trichloroethene, 100 µg/ml, Acetonitrile, 1ml

Benzo[ghi]perylene-d12, 100µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 93951-66-7

1-Heptadecanol, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 1454-85-9