beta-Endosulfan, 10.0 µg/ml, Ethyl acetate, 10ml

Methyl heptadecanoate-d33, neat, Solvent-neat, Unit 50mg, # of units-1, Cas.no. 1219804-81-5

(+/-)-Cotinine-d3 (N-methyl-d3), 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 110952-70-0

Phosphorous Standards Phosphorus in Isooctane Tri-n-butylphosphate, 99+% (Chiron product nr. 1399.19) CAS [126-73-8] Matrix: Isooctane , 20cSt Units: 1x25mL, 1x100mL Isooctane