. 2018 Nov 6;9:1264. doi: 10.3389/fphar.2018.01264

Table 3.

Information of the [M+H]⁺ of corynoline and its product ions in mass spectrum of product ion mode.

Observed m/z	Formula	Calculated m/z	Diff (ppm)	Loss formula
368.1507	C₂₁H₂₁NO₅	368.1492	−3.91	–
350.1382	C₂₁H₁₉NO₄	350.1387	1.49	H₂O
337.1065	C₂₀H₁₇O₅	337.1071	1.65	CH₄N
319.0961	C₂₀H₁₅O₄	319.0965	1.25	CH₇NO
289.0854	C₁₉H₁₃O₃	289.0859	1.83	C₂H₈NO₂
261.0902	C₁₈H₁₃O₂	261.0910	2.91	C₃H₈NO₃
231.0797	C₁₇H₁₁O	231.0804	3.40	C₄H₁₀NO₄
203.0846	C₁₆H₁₁	203.0855	4.56	C₄H₁₀NO₅
187.0756	C₁₂H₁₁O₂	187.0754	2.58	C₉H₁₀NO₃
177.0542	C₁₀H₉O₃	177.0546	5.48	C₁₁H₁₂NO₂
175.0744	C₁₁H₁₁O₂	175.0754	4.93	C₁₀H₁₀NO₃
163.0382	C₉H₇O₃	163.0390	4.73	C₁₂H₁₄NO₂
135.0435	C₈H₇O₂	135.0441	4.12	C₁₃H₁₄NO₃