Processed databases
Atom-Mass pairs
Outputs for Methylmalonic acid; LC-ESI-QQ; MS2; CE:20 V; [M-H]-
Database: Institute for Advanced Biosciences, Keio Univ.
Entry ID: KO001339
Synonyms: Methylmalonate, Methylmalonic acid
Total mass: 118.0878
Formula: H6 C4 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: 74.9,
Processing time: 0:00:01.542629
Results for the quried mass "55.4"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C2O2 | 0.388 | 1 | 0 | C2,C3,O5,O6 |
| C2O2 | 0.388 | 1 | 0 | C2,C4,O7,O8 |
| C3O1 | 0.345 | 3 | 0 | C1,C2,C3,O5 |
| C3O1 | 0.345 | 3 | 0 | C1,C2,C3,O6 |
| C3O1 | 0.345 | 3 | 0 | C1,C2,C4,O7 |
| C3O1 | 0.345 | 3 | 0 | C1,C2,C4,O8 |
| C3O1 | 0.345 | 3 | 1 | C2,C3,C4,O8 |
| C3O1 | 0.345 | 3 | 1 | C2,C3,C4,O6 |