4-METHYLBENZOIC ACID; EI-B; MS

Computational Annotation of MS Peaks (CAMP)

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Submission id: JP007228

Outputs for 4-METHYLBENZOIC ACID; EI-B; MS

Database: UNIV. OF OCCUPATIONAL AND ENVIRONMENTAL HEALTH, Tokyo
Entry ID: JP007228
Synonyms: 4-METHYLBENZOIC ACID, PTOLUIC ACID
Total mass: 136.1476
Formula: H8 C8 O2

Experimental information

MS type: MS
Instrument: HITACHI M-52
Instrument type: EI-B
Ionization: 25 eV
Ionization mode: POSITIVE

CAMP general report:

Acceptable mass threshold: 2.0158
Out of range queried mass peaks:
Replicated queried mass peaks: 18.0, 28.0, 29.0, 40.0, 41.0, 52.0, 53.0, 63.0, 65.0, 66.0, 75.0, 78.0, 79.0, 90.0, 91.0, 119.0, 136.0, 137.0,
Processing time: 0:00:02.531655

Results for the quried mass "43.0"

Formula	Mass differences	Num. used protons	Num. required extra protons	Atom names
C1O2	0.002	1	0	C8,O9,O10
C2O1	0.045	3	2	C7,C8,O9