Processed databases
Atom-Mass pairs
Outputs for L-Histidine; LC-ESI-QQ; MS2; CE:30 V; [M+H]+
Database: Institute for Advanced Biosciences, Keio Univ.
Entry ID: KO003056
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: 43.1, 56.2, 57.0, 69.2, 79.0, 82.2, 91.7, 93.9, 96.9, 106.8, 110.2, 111.2, 139.4,
Processing time: 0:00:02.236942
Results for the quried mass "138.2"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C5O2N3 | 0.096 | 4 | 0 | C1,C3,C4,C5,C6,N7,N8,N9,O10,O11 |
| C5O2N3 | 0.096 | 4 | 0 | C1,C2,C4,C5,C6,N7,N8,N9,O10,O11 |
| C6O2N2 | 0.076 | 6 | 0 | C1,C2,C3,C4,C5,C6,N8,N9,O10,O11 |
| C6O2N2 | 0.076 | 6 | 0 | C1,C2,C3,C4,C5,C6,N7,N9,O10,O11 |
| C6O2N2 | 0.076 | 6 | 0 | C1,C2,C3,C4,C5,C6,N7,N8,O10,O11 |
| C6O1N3 | 0.053 | 8 | 0 | C1,C2,C3,C4,C5,C6,N7,N8,N9,O11 |
| C6O1N3 | 0.053 | 8 | 0 | C1,C2,C3,C4,C5,C6,N7,N8,N9,O10 |