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Table 5 LC-ESI-MS/MS analysis of photo-degradation mixture of glycyrrhetic acid

From: Stress degradation studies and stability-indicating TLC-densitometric method of glycyrrhetic acid

Peak Rt (min) Proposed formula Observed mass Calculated mass Error (ppm) Characteristic MS/MS fragment ions
Peak 1 1.687 C30H45O5 485.3263 485.3261 0.3601 467, 449, 431, 421,403, 385, 259, 233, 187
Peak 2 2.142 C30H47O5 487.3450 487.3423 5.4374 451,423,405,387, 317, 271,235,189,175
Glycyrrhetic acid ( Peak 3) 2.531 C30H47O4 471.3488 471.3468 4.0588 453, 425, 407, 389, 317, 271, 263, 235, 217, 189, 149
Peak 4 2.916 C30H49O3 457.3636 457.3676 −8.7945 439, 411, 393, 343, 249, 203, 191