Processed databases
Atom-Mass pairs
Outputs for ETHYL 3-OXOBUTANOATE; EI-B; MS
Database: UNIV. OF OCCUPATIONAL AND ENVIRONMENTAL HEALTH, Tokyo
Entry ID: JP005909
Synonyms: ETHYL 3-OXOBUTANOATE
Total mass: 130.1414
Formula: H10 C6 O3
Experimental information
MS type: MS
Instrument: HITACHI RMU-6M
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: 28.0, 29.0, 43.0, 44.0, 46.0, 58.0, 61.0, 70.0, 85.0, 86.0, 88.0, 89.0, 131.0,
Processing time: 0:00:01.847178
Results for the quried mass "31.0"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C1O1 | 0.034 | 3 | 1 | C3,O9 |
| C2 | 0.077 | 7 | 2 | C1,C3 |