Processed databases
Atom-Mass pairs
Outputs for D-5-Oxoproline; LC-ESI-QQ; MS2; CE:20 V; [M-H]-
Database: Institute for Advanced Biosciences, Keio Univ.
Entry ID: KO001697
Synonyms: D-5-Oxoproline, 5-Oxo-D-proline, D-Pyroglutamic acid, D-5-Pyrrolidone-2-carboxylic acid
Total mass: 129.1137
Formula: H7 C5 O3 N1
Experimental information
MS type: MS2
Instrument: API3000, Applied Biosystems
Instrument type: LC-ESI-QQ
Ionization mode: NEGATIVE
CAMP general report:
Acceptable mass threshold: 2.0158Out of range queried mass peaks:
Replicated queried mass peaks:
Processing time: 0:00:01.146683
Results for the quried mass "81.9"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C3O2N1 | 0.138 | 0 | 0 | C1,C3,C5,N6,O8,O9 |
| C4O1N1 | 0.180 | 4 | 0 | C1,C2,C3,C4,N6,O7 |
| C4O2 | 0.157 | 2 | 0 | C1,C2,C3,C5,O8,O9 |