17 alpha(H),21ß(H)-Hopane, 100µg/mL in Isooctane, 1ml

Pendimethalin, 100 µg/ml, Acetone, 1ml

p-Terphenyl-d14, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-10, Cas.no. 1718-51-0

Theobromine-d3 (1-methyl-d3),100 µg/mL,MeOH,1mL