Processed databases
Atom-Mass pairs
Outputs for 4-METHYLVALERIC ACID; EI-B; MS
Database: UNIV. OF OCCUPATIONAL AND ENVIRONMENTAL HEALTH, Tokyo
Entry ID: JP009188
Synonyms: 4-METHYLVALERIC ACID
Total mass: 116.1578
Formula: H12 C6 O2
Experimental information
MS type: MS
Instrument: HITACHI M-80B
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, 30.0, 31.0, 39.0, 40.0, 42.0, 43.0, 45.0, 51.0, 54.0, 55.0, 57.0, 58.0, 60.0, 61.0, 70.0, 74.0, 75.0,
Processing time: 0:00:01.934078
Results for the quried mass "15.0"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C1 | 0.034 | 3 | 0 | C1 |
| C1 | 0.034 | 3 | 0 | C2 |
| C1 | 0.034 | 3 | 1 | C3 |
| C1 | 0.034 | 3 | 1 | C4 |
| C1 | 0.034 | 3 | 2 | C5 |
| O1 | 0.009 | 1 | 1 | O7 |
| O1 | 0.009 | 1 | 0 | O8 |