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Cytosine β-D-arabinofuranoside
SpectraBase Compound ID DdPtdcIucts
InChI InChI=1S/C9H13N3O5/c10-5-1-2-12(9(16)11-5)8-7(15)6(14)4(3-13)17-8/h1-2,4,6-8,13-15H,3H2,(H2,10,11,16)/t4-,6-,7+,8-/m1/s1
InChIKey UHDGCWIWMRVCDJ-CCXZUQQUSA-N
Mol Weight 243.22 g/mol
Molecular Formula C9H13N3O5
Exact Mass 243.085521 g/mol

Mass Spectrum (LC)

Mass Spectrum (LC)

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SpectraBase Spectrum ID EEXolWj9JTM
Name Cytarabine
CAS Registry Number 147-94-4
Collision Energy 35 eV
Copyright Copyright © 2012-2025 Herbert Oberacher. All Rights Reserved.
Exact Mass 243.085520526 u
Formula C9H13N3O5
InChI InChI=1S/C9H13N3O5/c10-5-1-2-12(9(16)11-5)8-7(15)6(14)4(3-13)17-8/h1-2,4,6-8,13-15H,3H2,(H2,10,11,16)/t4-,6-,7+,8-/m1/s1
InChIKey UHDGCWIWMRVCDJ-CCXZUQQUSA-N
Instrument Name QStar XL, AB Sciex
Ion Polarity P
Ionization Type ESI+
Molecular Weight 243.219 g/mol
Nominal Mass 243 u
Precursor Ion [M+H]+
Precursor m/z 244.093
SMILES NC=1C=CN([C@@]2(O[C@](CO)([C@]([C@@]2(O)[H])(O)[H])[H])[H])C(N1)=O
Selected Ion Charge 1
Source of Spectrum Herbert Oberacher, Institute of Legal Medicine, Innsbruck/Austria
Spectrum Type ms2
Synonyms 4-amino-1-[(2R,3S,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]pyrimidin-2-one
Technique Q-TOF
Wiley ID MSforID_+_260.6