Processed databases
Atom-Mass pairs
Outputs for Ketoleucine; LC-ESI-QQ; MS2; CE:40 V; [M-H]-
Database: Institute for Advanced Biosciences, Keio Univ.
Entry ID: KO001322
Synonyms: 4-Methyl-2-oxopentanoate, 2-Oxoisocaproate, Ketoleucine
Total mass: 130.1414
Formula: H10 C6 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:
Replicated queried mass peaks: 56.8,
Processing time: 0:00:01.106712
Results for the quried mass "55.0"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C2O2 | 0.012 | 1 | 0 | C5,C6,O8,O9 |
| C2O2 | 0.012 | 1 | 0 | C5,C6,O7,O8 |
| C2O2 | 0.012 | 1 | 1 | C5,C6,O7,O9 |
| C3O1 | 0.055 | 3 | 0 | C3,C5,C6,O8 |
| C3O1 | 0.055 | 3 | 1 | C3,C5,C6,O9 |
| C3O1 | 0.055 | 3 | 0 | C3,C4,C5,O7 |
| C3O1 | 0.055 | 3 | 1 | C3,C5,C6,O7 |
| C4 | 0.098 | 7 | 1 | C1,C3,C4,C5 |
| C4 | 0.098 | 7 | 1 | C2,C3,C4,C5 |