EPA Method 500 Series Internal Standard #5

d4 C28 alpha alpha alpha (20R)/C29 alpha alpha alpha (20R)-Methyl/Ethylcholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no.

Tetradecanoic acid (Myristic), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 544-63-8

Dehydroepiandrosterone-16,16-d2 (DHEA-16,16-d2), neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 67034-83-7