Pseudo first order kinetic parameters plusmn xA standard

Another important fragment is at m/z 340 which indicates a loss of –OH from the sulfonic acid group. For TP 293, the suggested molecular formula is C15H23O3N3. This TP is structurally related with TP 277 and the fragment at m/z 128 (C7H14NO) together with the fact that the characteristic fragment at m/z 112 is not observed, would indicate the likelihood that the hydroxylation took place in the ethylpyrrolidine ring.