Processed databases
Atom-Mass pairs
Outputs for Quercetin; LC-ESI-QTOF; MS2; CE:55 eV; [M-H]-
Database: Institute of Plant Biochemistry, Halle, Germany
Entry ID: PB002412
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, 117.034, 120.023, 121.03, 131.05, 132.022, 134.037, 137.025, 145.032, 147.044, 148.019, 151.005, 157.034, 159.048, 162.035, 163.009, 183.043,
Processing time: 0:00:10.192887
Results for the quried mass "177.056"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C8O5 | 0.035 | 1 | 0 | C4,C5,C7,C10,C11,C12,C13,C14,O16,O19,O20,O21,O22 |
| C9O4 | 0.077 | 5 | 0 | C1,C2,C3,C6,C8,C9,C13,C14,C15,O17,O18,O20,O21 |
| C9O4 | 0.077 | 5 | 0 | C1,C2,C3,C6,C8,C9,C11,C14,C15,O17,O18,O21,O22 |