Processed databases
Atom-Mass pairs
Outputs for Gentisic acid; LC-ESI-QQ; MS2; CE:20 V; [M-H]-
Database: Institute for Advanced Biosciences, Keio Univ.
Entry ID: KO000575
Synonyms: 2,5-Dihydroxybenzoate, Hydroquinonecarboxylic acid, Gentisate, Gentisic acid
Total mass: 154.1199
Formula: H6 C7 O4
Experimental information
MS type: MS2
Instrument: API3000, Applied Biosystems
Instrument type: LC-ESI-QQ
Ionization mode: NEGATIVE
CAMP general report:
Acceptable mass threshold: 2.0158Out of range queried mass peaks:
Replicated queried mass peaks: 109.1,
Processing time: 0:00:02.232206
Results for the quried mass "81.2"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C5O1 | 0.108 | 5 | 1 | C1,C2,C3,C5,C6,O9 |
| C5O1 | 0.108 | 5 | 1 | C1,C2,C3,C4,C6,O9 |
| C5O1 | 0.108 | 5 | 1 | C1,C2,C3,C4,C5,O8 |
| C5O1 | 0.108 | 5 | 1 | C1,C2,C3,C4,C6,O8 |
| C4O2 | 0.151 | 1 | 0 | C1,C2,C4,C6,O8,O9 |