Processed databases
Atom-Mass pairs
Outputs for BUTANOIC ACID; EI-B; MS
Database: UNIV. OF OCCUPATIONAL AND ENVIRONMENTAL HEALTH, Tokyo
Entry ID: JP001851
Synonyms: BUTANOIC ACID, BUTYRIC ACID
Total mass: 88.1048
Formula: H8 C4 O2
Experimental information
MS type: MS
Instrument: HITACHI RMU-7M
Instrument type: EI-B
Ionization: 70 eV
Ionization mode: POSITIVE
CAMP general report:
Acceptable mass threshold: 2.0158Out of range queried mass peaks:
Replicated queried mass peaks: 27.0, 28.0, 31.0, 39.0, 40.0, 42.0, 43.0, 45.0, 61.0, 70.0, 71.0, 88.0,
Processing time: 0:00:01.833789
Results for the quried mass "73.0"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C3O2 | 0.070 | 5 | 0 | C2,C3,C4,O5,O6 |
| C4O1 | 0.113 | 9 | 1 | C1,C2,C3,C4,O6 |
| C4O1 | 0.113 | 9 | 2 | C1,C2,C3,C4,O5 |