Processed databases
Atom-Mass pairs
Outputs for Caffeine; LC-ESI-QTOF; MS2; [M+H]+; CE: 30eV
Database: Natural Product Chemistry Lab (CPqRR/FIOCRUZ, Brazil)
Entry ID: FIO00570
Synonyms: Caffeine
Total mass: 194.1902
Formula: H10 C8 O2 N4
Experimental information
MS type: MS2
Instrument: maXis (Bruker Daltonics)
Instrument type: LC-ESI-QTOF
Ionization: ESI
Ionization mode: POSITIVE
CAMP general report:
Acceptable mass threshold: 2.0158Out of range queried mass peaks:
Replicated queried mass peaks: 110.0718, 139.0694, 196.0903,
Processing time: 0:00:01.781735
Results for the quried mass "138.0667"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C5O2N3 | 0.037 | 4 | 0 | C2,C3,C6,C7,C8,N9,N11,N12,O13,O14 |
| C6O2N2 | 0.057 | 6 | 0 | C2,C3,C5,C6,C7,C8,N11,N12,O13,O14 |
| C6O2N2 | 0.057 | 6 | 0 | C1,C3,C4,C5,C7,C8,N10,N12,O13,O14 |
| C6O1N3 | 0.080 | 8 | 1 | C1,C2,C4,C5,C6,C8,N9,N10,N11,O14 |
| C6O1N3 | 0.080 | 8 | 1 | C1,C3,C4,C5,C6,C7,N9,N10,N12,O13 |
| C6O1N3 | 0.080 | 8 | 1 | C1,C2,C4,C5,C6,C7,N9,N10,N11,O13 |