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Methotrexate
SpectraBase Compound ID Flkl9XdxNLJ
InChI InChI=1S/C20H22N8O5/c1-28(9-11-8-23-17-15(24-11)16(21)26-20(22)27-17)12-4-2-10(3-5-12)18(31)25-13(19(32)33)6-7-14(29)30/h2-5,8,13H,6-7,9H2,1H3,(H,25,31)(H,29,30)(H,32,33)(H4,21,22,23,26,27)/t13-/m0/s1
InChIKey FBOZXECLQNJBKD-ZDUSSCGKSA-N
Mol Weight 454.45 g/mol
Molecular Formula C20H22N8O5
Exact Mass 454.171316 g/mol

Mass Spectrum (LC)

Mass Spectrum (LC)

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SpectraBase Spectrum ID IaUar4gO0Cg
Name Methotrexate
CAS Registry Number 59-05-2
Collision Energy 40 eV
Copyright Copyright © 2012-2025 Herbert Oberacher. All Rights Reserved.
Exact Mass 454.171315835 u
Formula C20H22N8O5
InChI InChI=1S/C20H22N8O5/c1-28(9-11-8-23-17-15(24-11)16(21)26-20(22)27-17)12-4-2-10(3-5-12)18(31)25-13(19(32)33)6-7-14(29)30/h2-5,8,13H,6-7,9H2,1H3,(H,25,31)(H,29,30)(H,32,33)(H4,21,22,23,26,27)/t13-/m0/s1
InChIKey FBOZXECLQNJBKD-ZDUSSCGKSA-N
Instrument Name QStar XL, AB Sciex
Ion Polarity P
Ionization Type ESI+
Molecular Weight 454.447 g/mol
Nominal Mass 454 u
Precursor Ion [M+H]+
Precursor m/z 455.179
SMILES OC([C@](CCC(O)=O)(NC(C1=CC=C(N(CC2=CN=C3N=C(N=C(C3=N2)N)N)C)C=C1)=O)[H])=O
Selected Ion Charge 1
Source of Spectrum Herbert Oberacher, Institute of Legal Medicine, Innsbruck/Austria
Spectrum Type ms2
Synonyms (2S)-2-[[4-[(2,4-diaminopteridin-6-yl)methyl-methylamino]benzoyl]amino]pentanedioic acid
Technique Q-TOF
Wiley ID MSforID_+_550.7