Processed databases
Atom-Mass pairs
Outputs for 2-Oxobutyric acid; GC-EI-TOF; MS; n TMS; RT:425.296 sec
Database: Engineering department, Osaka Univ.
Entry ID: OUF00039
Synonyms: 2-Oxobutyrate, 2-Oxobutyric acid
Total mass: 102.0884
Formula: H6 C4 O3
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: 109.0,112.0,115.0,118.0,122.0,126.0,129.0,132.0,135.0,138.0,141.0,144.0,147.0,150.0,156.0,159.0,163.0,166.0,171.0,174.0,177.0,185.0,188.0,191.0,200.0,203.0,213.0,216.0,223.0,228.0,231.0,242.0,245.0,248.0,251.0,256.0,260.0,267.0,273.0,276.0,286.0,293.0,315.0,323.0,352.0,390.0,397.0,402.0,411.0,417.0,421.0,427.0,430.0,436.0,444.0,457.0,466.0,478.0,487.0,493.0,496.0,
Replicated queried mass peaks: 86.0, 87.0, 89.0, 90.0, 99.0, 100.0, 102.0, 103.0, 105.0, 106.0, 111.0, 113.0, 114.0, 116.0, 117.0, 119.0, 127.0, 128.0, 130.0, 131.0, 133.0, 134.0, 139.0, 142.0, 143.0, 145.0, 146.0, 148.0, 149.0, 157.0, 158.0, 164.0, 172.0, 173.0, 175.0, 176.0, 186.0, 187.0, 190.0, 192.0, 193.0, 202.0, 204.0, 215.0, 217.0, 218.0, 224.0, 244.0, 249.0, 252.0, 261.0, 262.0, 277.0, 278.0, 391.0, 413.0, 419.0, 431.0, 468.0, 494.0,
Processing time: 0:00:00.370934
Results for the quried mass "101.0"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C4O3 | 0.080 | 5 | 0 | C1,C2,C3,C4,O5,O6,O7 |