Processed databases
Atom-Mass pairs
Outputs for Quercetin; LC-ESI-QTOF; MS2; CE:40 eV; [M-H]-
Database: Institute of Plant Biochemistry, Halle, Germany
Entry ID: PB002411
Synonyms: Quercetin , 2-(3,4-dihydroxyphenyl)-3,5,7-trihydroxychromen-4-one
Total mass: 302.2353
Formula: H10 C15 O7
Experimental information
MS type: MS2
Instrument: API QSTAR Pulsar i
Instrument type: LC-ESI-QTOF
Ionization: ESI
Ionization mode: NEGATIVE
CAMP general report:
Acceptable mass threshold: 2.0158Out of range queried mass peaks:
Replicated queried mass peaks: 65.003, 95.014, 108.024, 109.031, 121.029, 125.024, 135.042, 147.042, 149.025, 152.012, 161.027, 164.014, 175.038, 178.997, 185.057, 203.031, 229.051, 245.05,
Processing time: 0:00:11.491643
Results for the quried mass "199.035"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C10O5 | 0.061 | 1 | 0 | C4,C5,C6,C7,C10,C11,C12,C13,C14,C15,O16,O19,O20,O21,O22 |
| C10O5 | 0.061 | 1 | 0 | C1,C2,C3,C6,C8,C9,C11,C13,C14,C15,O17,O18,O20,O21,O22 |
| C10O5 | 0.061 | 1 | 0 | C1,C2,C3,C6,C8,C9,C12,C13,C14,C15,O17,O18,O20,O21,O22 |
| C11O4 | 0.104 | 3 | 0 | C1,C2,C3,C4,C5,C6,C7,C8,C9,C11,C15,O16,O17,O18,O22 |