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. 2024 Mar 23;72(13):7497–7510. doi: 10.1021/acs.jafc.4c00552

Table 3. Ion Masses in the Positive Ion Mode of the Degradation Products Formed During Degradation under Slightly Basic Conditions.

compound [M+] [MS2] [MS3] possible identity
1 199     syringic acid
2 985 823 661 dimer 1
3 985 823 661 dimer 2
4 1001 983; 839; 677   monohydrated dimer
5 1003 985; 823   monohydrated dimer
6 1017 855; 693    
7 1511 1349; 1493; 1331   dihydrated trimer
8 1491 1329; 1167; 1005   monohydrated trimer
9 1493 1331; 1169   monohydrated trimer