Processed databases
Atom-Mass pairs
Outputs for L-Histidine; LC-ESI-QQ; MS2; CE:40 V; [M+H]+
Database: Institute for Advanced Biosciences, Keio Univ.
Entry ID: KO003057
Synonyms: His, L-Histidine, (S)-alpha-Amino-1H-imidazole-4-propionic acid
Total mass: 155.1542
Formula: H9 C6 O2 N3
Experimental information
MS type: MS2
Instrument: API3000, Applied Biosystems
Instrument type: LC-ESI-QQ
Ionization mode: POSITIVE
CAMP general report:
Acceptable mass threshold: 2.0158Out of range queried mass peaks:
Replicated queried mass peaks: 41.8, 55.0, 66.9, 69.2, 77.9, 81.0, 83.2, 93.1, 93.8, 96.9, 110.1, 120.9,
Processing time: 0:00:01.859467
Results for the quried mass "40.8"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C3 | 0.272 | 5 | 2 | C1,C2,C4 |
| C3 | 0.272 | 5 | 2 | C1,C5,C6 |
| C3 | 0.272 | 5 | 2 | C1,C4,C5 |
| C2N1 | 0.252 | 3 | 0 | C1,C5,N7 |
| C2N1 | 0.252 | 3 | 0 | C1,C4,N9 |
| C2N1 | 0.252 | 3 | 1 | C2,C3,N8 |
| C2N1 | 0.252 | 3 | 1 | C2,C4,N9 |
| C2N1 | 0.252 | 3 | 2 | C2,C4,N8 |
| C2N1 | 0.252 | 3 | 1 | C3,C4,N9 |
| C2N1 | 0.252 | 3 | 0 | C5,C6,N7 |
| C1N2 | 0.232 | 1 | 0 | C3,N8,N9 |
| C2O1 | 0.229 | 1 | 0 | C5,C6,O10 |
| C2O1 | 0.229 | 1 | 0 | C5,C6,O11 |