N-Desethyl Isotonitazene/Creatinine:MRto:Pt:Urine:Qn:Confirm
n-desethyl isotonitazene/creatinine:mrto:pt:urine:qn:confirm
N-Desethyl Isotonitazene/Creatinine Confirm (U) [Mass ratio]
n-desethyl isotonitazene/creatinine confirm (u) [mass ratio]