Processed databases
Atom-Mass pairs
Outputs for Protocatechuic acid; GC-EI-TOF; MS; 3 TMS; BP:193
Database: Kazusa DNA Research Institute
Entry ID: KZ000068
Synonyms: 3,4-Dihydroxybenzoic acid, Protocatechuic acid
Total mass: 154.1199
Formula: H6 C7 O4
Experimental information
MS type: MS
Instrument: Pegasus III TOF-MS system, Leco; GC 6890, Agilent Technologies
Instrument type: GC-EI-TOF
Ionization mode: POSITIVE
CAMP general report:
Acceptable mass threshold: 2.0158Out of range queried mass peaks: 159.0,162.0,165.0,168.0,175.0,178.0,181.0,189.0,192.0,195.0,205.0,208.0,211.0,219.0,222.0,225.0,235.0,238.0,251.0,254.0,265.0,268.0,279.0,282.0,295.0,298.0,309.0,312.0,315.0,353.0,356.0,359.0,362.0,365.0,369.0,372.0,
Replicated queried mass peaks: 83.0, 84.0, 86.0, 87.0, 89.0, 90.0, 92.0, 93.0, 95.0, 96.0, 98.0, 99.0, 102.0, 103.0, 105.0, 106.0, 108.0, 109.0, 111.0, 112.0, 115.0, 117.0, 118.0, 120.0, 121.0, 123.0, 124.0, 126.0, 127.0, 131.0, 133.0, 134.0, 136.0, 137.0, 139.0, 143.0, 146.0, 147.0, 149.0, 150.0, 152.0, 153.0, 157.0, 161.0, 163.0, 164.0, 166.0, 167.0, 177.0, 179.0, 180.0, 182.0, 183.0, 191.0, 193.0, 194.0, 196.0, 197.0, 206.0, 207.0, 209.0, 210.0, 212.0, 221.0, 223.0, 224.0, 226.0, 236.0, 237.0, 239.0, 252.0, 253.0, 266.0, 267.0, 269.0, 270.0, 280.0, 281.0, 283.0, 284.0, 297.0, 310.0, 311.0, 313.0, 314.0, 316.0, 354.0, 355.0, 357.0, 358.0, 361.0, 363.0, 364.0, 366.0, 370.0, 371.0, 373.0, 374.0,
Processing time: 0:00:01.824663
Results for the quried mass "97.0"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C5O2 | 0.092 | 5 | 0 | C1,C2,C3,C5,C6,O8,O9 |
| C5O2 | 0.092 | 5 | 1 | C1,C2,C3,C4,C7,O10,O11 |
| C4O3 | 0.049 | 1 | 0 | C3,C4,C6,C7,O9,O10,O11 |