Midazolam

Tris(2-butoxy-[13C2]-ethyl) phosphate, 50µg/ml in Toluene, 1,2ml

Efavirenz-13C6

2-Acetyl-3-ethylpyrazine, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-, Cas.no.