Processed databases
Atom-Mass pairs
Outputs for Butylparaben; LC-ESI-ITFT; MS2; CE: 55; R=15000; [M-H]-
Database: Department of Effect-Directed Analysis, Helmholtz Centre for Environmental Research - UFZ GmbH, Leipzig, Germany
Entry ID: UF415854
Synonyms: Butylparaben, Butyl paraben, 4-Hydroxybenzoate-butyl
Total mass: 194.2265
Formula: H14 C11 O3
Experimental information
MS type: MS2
Instrument: LTQ Orbitrap XL Thermo Scientific
Instrument type: LC-ESI-ITFT
Ionization: ESI
Ionization mode: NEGATIVE
CAMP general report:
Acceptable mass threshold: 2.0158Out of range queried mass peaks:
Replicated queried mass peaks: 93.0346, 137.0244, 149.0968,
Processing time: 0:00:01.116385
Results for the quried mass "149.0036"
| Formula | Mass differences | Num. used protons | Num. required extra protons | Atom names |
| C9O2 | 0.163 | 9 | 0 | C1,C2,C3,C4,C5,C7,C8,C9,C11,O13,O14 |
| C9O2 | 0.163 | 9 | 0 | C1,C2,C3,C4,C5,C6,C8,C9,C11,O13,O14 |
| C8O3 | 0.120 | 5 | 0 | C4,C5,C6,C7,C8,C9,C10,C11,O12,O13,O14 |