Processed databases
Atom-Mass pairs
Outputs for 4-METHYLBENZOIC ACID; EI-B; MS
Database: UNIV. OF OCCUPATIONAL AND ENVIRONMENTAL HEALTH, Tokyo
Entry ID: JP007228
Synonyms: 4-METHYLBENZOIC ACID, PTOLUIC ACID
Total mass: 136.1476
Formula: H8 C8 O2
Experimental information
MS type: MS
Instrument: HITACHI M-52
Instrument type: EI-B
Ionization: 25 eV
Ionization mode: POSITIVE
CAMP general report:
Acceptable mass threshold: 2.0158Out of range queried mass peaks:
Replicated queried mass peaks: 18.0, 28.0, 29.0, 40.0, 41.0, 52.0, 53.0, 63.0, 65.0, 66.0, 75.0, 78.0, 79.0, 90.0, 91.0, 119.0, 136.0, 137.0,
Processing time: 0:00:02.531655
Results for the quried mass "51.0"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C3O1 | 0.024 | 1 | 0 | C4,C7,C8,O9 |
| C3O1 | 0.024 | 1 | 0 | C4,C7,C8,O10 |
| C3O1 | 0.024 | 1 | 0 | C5,C7,C8,O9 |
| C3O1 | 0.024 | 1 | 0 | C5,C7,C8,O10 |
| C4 | 0.066 | 3 | 0 | C2,C4,C5,C7 |
| C4 | 0.066 | 3 | 0 | C2,C3,C5,C6 |
| C4 | 0.066 | 3 | 1 | C2,C4,C7,C8 |
| C4 | 0.066 | 3 | 0 | C2,C3,C4,C6 |
| C4 | 0.066 | 3 | 1 | C2,C4,C6,C7 |
| C4 | 0.066 | 3 | 0 | C3,C4,C5,C7 |
| C4 | 0.066 | 3 | 1 | C3,C5,C7,C8 |
| C4 | 0.066 | 3 | 1 | C3,C5,C6,C7 |
| C4 | 0.066 | 3 | 1 | C4,C5,C7,C8 |