MassBank Record: MSBNK-BAFG-CSL23111011633
ACCESSION: MSBNK-BAFG-CSL23111011633
RECORD_TITLE: Isocaffeine; LC-ESI-QTOF; MS2; 40 V
DATE: 2023.11.10
AUTHORS: Kevin S. Jewell; Björn Ehlig; Arne Wick
LICENSE: dl-de/by-2-0
COPYRIGHT: Copyright 2023 Federal Institute of Hydrology, Koblenz, Germany
COMMENT: CONFIDENCE Reference Standard (Level 1)
COMMENT: Chromatography method: dx.doi.org/10.1016/j.chroma.2015.11.014
COMMENT: Acquisition method: 10.1002/rcm.8541
CH$NAME: Isocaffeine
CH$COMPOUND_CLASS: Natural_product
CH$FORMULA: C8H10N4O2
CH$EXACT_MASS: 194.0804
CH$SMILES: CN1C=NC2=C1N(C(=O)N(C2=O)C)C
CH$IUPAC: InChI=1S/C8H10N4O2/c1-10-4-9-5-6(10)11(2)8(14)12(3)7(5)13/h4H,1-3H3
CH$LINK: CAS
519-32-4
CH$LINK: INCHIKEY
LPHGQDQBBGAPDZ-UHFFFAOYSA-N
AC$INSTRUMENT: TripleTOF 5600 SCIEX
AC$INSTRUMENT_TYPE: LC-ESI-QTOF
AC$MASS_SPECTROMETRY: MS_TYPE MS2
AC$MASS_SPECTROMETRY: ION_MODE POSITIVE
AC$MASS_SPECTROMETRY: COLLISION_ENERGY 40
AC$MASS_SPECTROMETRY: FRAGMENTATION_MODE CID
AC$MASS_SPECTROMETRY: IONIZATION ESI
AC$CHROMATOGRAPHY: COLUMN_NAME Zorbax Eclipse Plus C18 2.1 mm x 150 mm, 3.5 um, Agilent
AC$CHROMATOGRAPHY: COLUMN_TEMPERATURE 40 °C
AC$CHROMATOGRAPHY: FLOW_GRADIENT 0 min min 98% A, 1 min 98% A, 2 min 80% A, 16.5 min 2% A, 22 min 2% A, 22.1 min 98% A, 27 min 98% A
AC$CHROMATOGRAPHY: FLOW_RATE 0.3 mL/min
AC$CHROMATOGRAPHY: RETENTION_TIME 4.729 min
AC$CHROMATOGRAPHY: SOLVENT A: Water 0.1% Formic acid, B: Acetonitrile 0.1% Formic acid
MS$FOCUSED_ION: PRECURSOR_M/Z 195.0877
MS$FOCUSED_ION: PRECURSOR_TYPE [M+H]+
MS$DATA_PROCESSING: COMMENT Export with Spectra 1.9.12 MsBackendMassbank 1.7.4
MS$DATA_PROCESSING: WHOLE RMassBank 2.3.1
PK$SPLASH: splash10-00ri-4900000000-a738e48b036db67fe851
PK$NUM_PEAK: 18
PK$PEAK: m/z int. rel.int.
42.0339 3 203
69.0441 7.5 509
81.0441 0.6 40
82.0189 0.4 27
83.0599 1.3 88
91.054 0.4 27
95.0236 0.6 40
95.0483 0.5 33
97.0396 5.7 387
108.0563 0.7 47
109.0398 0.8 54
110.0708 3 203
111.0543 2.3 156
122.0754 0.5 33
123.0415 14 951
136.0494 0.8 54
138.0652 14.7 999
195.0903 1.5 101
//