Dickinson RG, King AR, Kelly MA, Kaltashov IA, Fenselau C. Excretion of 3-hydroxy-diflunisal as a monosulphate conjugate--identification using ESI-MS.
J Pharm Biomed Anal 1994;
12:1075-8. [PMID:
7803554 DOI:
10.1016/0731-7085(94)00053-0]
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Abstract
Electrospray-ionization mass spectrometry was used to identify a novel, highly polar metabolite of diflunisal isolated from Gunn rat urine. Negative ion spectra were obtained of the sulphate conjugate of diflunisal and the new metabolite, which was identified as a sulphate conjugate of 3-hydroxydiflunisal.
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