TABLE 3

Retention times and electron ionization mass spectral data of TMCU and its metabolites as obtained using GC/MS


Metabolite

Retention Time

Highest m/z Ion

Five Most Abundant m/z Ions
min % abundance
TMCU 9.2 184(1.6), M+ 169(45), 126(40), 97(57), 81(44), 55(100)
OH-TMCU 12.4 169(15), M+–CH2OH 152(46), 126(43), 97(53), 81(100), 55(93)
Trimethylsilylated OH-TMCU 11.6 257(1), M+–CH3 215(9), 169(18), 130(54), 115(62), 73(100)
Permethylated OH-TMCU 10.4 256(0.1), M+ 225(16), 142(74), 95(31), 85(29), 72(100)
TMCU sulfate 14.5 280(5), M+ 109(19), 95(46), 81(74), 67(100), 55(72)
Trimethylsilylated TMCU sulfate 15.4 352(1), M+ 129(31), 81(48), 75(100), 67(63), 55(52)
Permethylated TMCU glucuronide
25.0
460(1), M+–CH3
232(89), 201(100), 141(46), 116(51), 101(48)