Processed databases
Atom-Mass pairs
Outputs for METHYLMALONIC ACID; EI-B; MS
Database: UNIV. OF OCCUPATIONAL AND ENVIRONMENTAL HEALTH, Tokyo
Entry ID: JP011260
Synonyms: METHYLMALONIC ACID
Total mass: 118.0878
Formula: H6 C4 O4
Experimental information
MS type: MS
Instrument: SHIMADZU QP-1000EX
Instrument type: EI-B
Ionization: 20 eV
Ionization mode: POSITIVE
CAMP general report:
Acceptable mass threshold: 2.0158Out of range queried mass peaks:
Replicated queried mass peaks: 16.0, 17.0, 19.0, 27.0, 28.0, 30.0, 31.0, 41.0, 43.0, 44.0, 46.0, 47.0, 55.0, 56.0, 58.0, 70.0, 71.0, 73.0, 74.0, 101.0,
Processing time: 0:00:02.353444
Results for the quried mass "72.0"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C3O2 | 0.063 | 4 | 0 | C1,C2,C4,O7,O8 |
| C3O2 | 0.063 | 4 | 0 | C1,C2,C3,O5,O6 |