. 2024 Mar 12;13(6):807. doi: 10.3390/plants13060807

Table 1.

Tentative LC-MS characterization of compounds in Pittosporum angustifolium Fraction 1.

Peak No.	Proposed Compound	Molecular Formula	RT (min)	Mode of Ionisation	Molecular Weight (g/mol)	Observed Precursor Mass (m/z)	Theoretical Mass (m/z)	Product Ions (m/z)	Literature
1	Chlorogenic acid	C₁₆H₁₈O₉	9.13	positive	354.31	355.10	355.00 *	65.0, 188.0, 219.0, 275.8
1	Neochlorogenic acid	C₁₆H₁₈O₉	9.13	positive	354.31	354.31	355.00	65.0, 188.0, 219.0, 275.8	Li et al., 2016 [15]
2	Unidentified	Unidentified	23.29	negative	Unidentified	229.10	Unidentified	157.1, 102.2
3	Unidentified	Unidentified	29.15	positive	Unidentified	313.10	Unidentified	223.1, 158.2, 102.2
4	Berberine	C₂₀H₁₈NO₄⁺	30.65	positive	336.4	336.20	336.12 **	287.2	Jiao et al., 2018 [16]
5	Unidentified	Unidentified	33.09	positive	Unidentified	378.2	Unidentified	102.1, 249.2
6	Unidentified	Unidentified	34.11	positive	Unidentified	326.9	Unidentified	102.3, 185.1, 228.3
7	Bergapten	C₁₂H₈O₄	36.48	positive	216.042	217.10	217.05 *	129.0, 202.0
8	Rosmarinic acid	C₁₈H₁₆O₈	44.44	positive	360.3	361.20	361.09 **	181.05, 139.04
9	8′-epitanegool	C₂₀H₂₄O₇Na	45.07	positive	399.39	399.2	399.14	287.3, 304.2	Jiao et al., 2018 [16]
10	Unidentified	Unidentified	46.07	positive	Unidentified	403.2	Unidentified	102.2, 329.2, 361

* NIST Library. ** PubChem.