2,3,5,6-Tetrachloroterephthalic acid

d4 Pregnane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 205529-77-7

Triphenylphosphate, certified, 0.25g

n-Heptadecane, ?13C: - 25.72, 150ug/ml, Solvent-cyclohexane, Unit 1mL, # of units-10, Cas.no. 629-78-7