Processed databases
Atom-Mass pairs
Outputs for Homovanillic acid; LC-ESI-QQ; MS2; CE:50 V; [M-H]-
Database: Institute for Advanced Biosciences, Keio Univ.
Entry ID: KO001075
Synonyms: Homovanillate, Homovanillic acid
Total mass: 182.1729
Formula: H10 C9 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:
Processing time: 0:00:01.988809
Results for the quried mass "40.9"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C3 | 0.172 | 5 | 2 | C2,C5,C6 |
| C3 | 0.172 | 5 | 2 | C4,C5,C6 |
| C2O1 | 0.129 | 1 | 0 | C3,C7,O10 |
| C2O1 | 0.129 | 1 | 0 | C4,C8,O13 |
| C2O1 | 0.129 | 1 | 0 | C5,C9,O11 |
| C2O1 | 0.129 | 1 | 0 | C5,C9,O12 |
| C2O1 | 0.129 | 1 | 1 | C7,C8,O13 |
| C2O1 | 0.129 | 1 | 0 | C7,C8,O10 |