Processed databases
Atom-Mass pairs
Outputs for 5-Methylcytosine; LC-ESI-QQ; MS2; CE:50 V; [M+H]+
Database: Institute for Advanced Biosciences, Keio Univ.
Entry ID: KO003366
Synonyms: 5-Methylcytosine
Total mass: 125.1283
Formula: H7 C5 O1 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: 56.0, 82.1,
Processing time: 0:00:00.752242
Results for the quried mass "54.0"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C2O1N1 | 0.028 | 0 | 0 | C4,C5,N8,O9 |
| C2O1N1 | 0.028 | 0 | 0 | C2,C5,N7,O9 |
| C2N2 | 0.051 | 2 | 0 | C3,C4,N6,N8 |
| C2N2 | 0.051 | 2 | 1 | C4,C5,N7,N8 |
| C2N2 | 0.051 | 2 | 0 | C4,C5,N6,N8 |
| C2N2 | 0.051 | 2 | 0 | C2,C5,N7,N8 |
| C3N1 | 0.070 | 4 | 0 | C1,C2,C3,N7 |
| C3N1 | 0.070 | 4 | 0 | C1,C3,C4,N6 |
| C3N1 | 0.070 | 4 | 0 | C1,C3,C4,N8 |
| C3N1 | 0.070 | 4 | 2 | C2,C3,C4,N6 |
| C3N1 | 0.070 | 4 | 2 | C2,C3,C4,N8 |