D3-(±)-Naproxen, 100 µg/ml, Methanol, 1ml

Tris(2-isopropylphenyl) phosphate, 1.2ml x 50ug/ml, toluene

EPA Method 8260 Internal Standard - Revised

3-Chloro-1,2-propandiol-2-monostearate, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no.