Processed databases
Atom-Mass pairs
Outputs for Homovanillic acid; LC-ESI-QQ; MS2; CE:10 V; [M-H]-
Database: Institute for Advanced Biosciences, Keio Univ.
Entry ID: KO001071
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: 199.6,
Replicated queried mass peaks: 74.6, 92.8, 108.8, 122.4, 122.9, 124.2, 137.1,
Processing time: 0:00:02.686976
Results for the quried mass "99.1"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C7O1 | 0.034 | 1 | 0 | C2,C3,C4,C5,C6,C7,C8,O13 |
| C7O1 | 0.034 | 1 | 0 | C2,C3,C4,C5,C6,C7,C8,O10 |
| C7O1 | 0.034 | 1 | 0 | C2,C3,C5,C6,C7,C8,C9,O11 |
| C7O1 | 0.034 | 1 | 0 | C2,C3,C5,C6,C7,C8,C9,O12 |
| C7O1 | 0.034 | 1 | 0 | C2,C3,C5,C6,C7,C8,C9,O13 |
| C7O1 | 0.034 | 1 | 0 | C2,C4,C5,C6,C7,C8,C9,O11 |
| C7O1 | 0.034 | 1 | 0 | C2,C4,C5,C6,C7,C8,C9,O12 |
| C7O1 | 0.034 | 1 | 0 | C2,C4,C5,C6,C7,C8,C9,O10 |
| C7O1 | 0.034 | 1 | 0 | C3,C4,C5,C6,C7,C8,C9,O11 |
| C7O1 | 0.034 | 1 | 0 | C3,C4,C5,C6,C7,C8,C9,O12 |
| C7O1 | 0.034 | 1 | 0 | C2,C3,C4,C5,C6,C8,C9,O11 |
| C7O1 | 0.034 | 1 | 0 | C2,C3,C4,C5,C6,C8,C9,O12 |
| C7O1 | 0.034 | 1 | 0 | C2,C3,C4,C5,C6,C8,C9,O13 |
| C7O1 | 0.034 | 1 | 0 | C3,C4,C5,C6,C7,C8,C9,O13 |
| C7O1 | 0.034 | 1 | 0 | C3,C4,C5,C6,C7,C8,C9,O10 |
| C7O1 | 0.034 | 1 | 0 | C2,C3,C4,C5,C6,C7,C9,O11 |
| C7O1 | 0.034 | 1 | 0 | C2,C3,C4,C5,C6,C7,C9,O12 |
| C7O1 | 0.034 | 1 | 0 | C2,C3,C4,C5,C6,C7,C9,O10 |
| C7O1 | 0.034 | 1 | 0 | C2,C3,C5,C6,C7,C8,C9,O10 |
| C8 | 0.009 | 3 | 0 | C2,C3,C4,C5,C6,C7,C8,C9 |
| C5O2 | 0.008 | 7 | 1 | C1,C3,C4,C7,C8,O10,O13 |
| C5O2 | 0.008 | 7 | 2 | C2,C4,C5,C6,C9,O11,O12 |
| C5O2 | 0.008 | 7 | 1 | C1,C2,C3,C7,C8,O10,O13 |
| C5O2 | 0.008 | 7 | 2 | C2,C3,C5,C6,C9,O11,O12 |