Processed databases
Atom-Mass pairs
Outputs for Guanine; LC-ESI-ITFT; MS2; m/z:150.04; NEG
Database: Graduate School of Information Science, NAIST
Entry ID: KNA00641
Synonyms: Guanine, 2-Amino-6-hydroxypurine
Total mass: 151.1259
Formula: H5 C5 O1 N5
Experimental information
MS type: MS2
Instrument: LTQ Orbitrap XL, Thermo Scientfic
Instrument type: LC-ESI-ITFT
Ionization: ESI
Ionization mode: NEGATIVE
CAMP general report:
Acceptable mass threshold: 2.0158Out of range queried mass peaks:
Replicated queried mass peaks: 108.06604,
Processing time: 0:00:01.179668
Results for the quried mass "107.043259"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C3N5 | 0.030 | 1 | 0 | C1,C3,C5,N6,N7,N8,N9,N10 |
| C3O1N4 | 0.007 | 1 | 0 | C3,C4,C5,N6,N8,N9,N10,O11 |
| C3O1N4 | 0.007 | 1 | 0 | C2,C4,C5,N6,N7,N9,N10,O11 |
| C4N4 | 0.050 | 3 | 0 | C1,C2,C3,C5,N6,N7,N8,N9 |
| C4O1N3 | 0.027 | 1 | 0 | C2,C3,C4,C5,N6,N9,N10,O11 |
| C4O1N3 | 0.027 | 1 | 0 | C1,C2,C4,C5,N6,N7,N10,O11 |
| C4O1N3 | 0.027 | 1 | 0 | C1,C2,C3,C4,N7,N8,N10,O11 |
| C4O1N3 | 0.027 | 1 | 0 | C1,C2,C3,C4,N7,N8,N9,O11 |