Processed databases
Atom-Mass pairs
Outputs for 4-Hydroxybenzoic acid; LC-ESI-QQ; MS2; CE:20 V; [M-H]-
Database: Institute for Advanced Biosciences, Keio Univ.
Entry ID: KO000964
Synonyms: p-Hydroxybenzoate, Hydroxybenzenecarboxylic acid, 4-Hydroxybenzoic acid, Hydroxybenzoic acid, 4-Hydroxybenzoate
Total mass: 138.1205
Formula: H6 C7 O3
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: 158.9,195.4,
Replicated queried mass peaks: 42.5, 45.8, 46.8, 57.9, 59.9, 72.9, 77.0, 88.8, 93.1, 100.8, 130.5, 138.9,
Processing time: 0:00:01.861747
Results for the quried mass "45.1"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C1O2 | 0.083 | 1 | 0 | C7,O9,O10 |