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Trimethoprim-M (O-demethyl-) MS2
SpectraBase Compound ID AvQBxX3INET
InChI InChI=1S/C13H16N4O3/c1-19-10-5-7(4-9(18)11(10)20-2)3-8-6-16-13(15)17-12(8)14/h4-6,18H,3H2,1-2H3,(H4,14,15,16,17)
InChIKey HWBPOLWLLFXEJY-UHFFFAOYSA-N
Mol Weight 276.3 g/mol
Molecular Formula C13H16N4O3
Exact Mass 276.12224 g/mol

Mass Spectrum (LC)

Mass Spectrum (LC)

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SpectraBase Spectrum ID 2Bni0y7HZbF
Name Trimethoprim-M (O-demethyl-) isomer-1
Collision Gas N2
Comments FTMS + p ESI d Full ms2 [email protected] [50.00-300.00]
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Formula C13H16N4O3
InChI InChI=1S/C13H16N4O3/c1-19-10-5-7(4-9(18)11(10)20-2)3-8-6-16-13(15)17-12(8)14/h4-6,18H,3H2,1-2H3,(H4,14,15,16,17)
InChIKey HWBPOLWLLFXEJY-UHFFFAOYSA-N
Inlet Type UHPLC
Instrument Name Thermo Fisher Q Exactive Orbitrap
Ion Polarity P
Ionization Type HESI
Precursor Ion [M+H]+
SMILES OC=1C=C(CC2=C(N=C(N=C2)N)N)C=C(C1OC)OC
Sample Comments The MMHW Reference Handbook is attached to Record #1, under the Attachments tab. Refer to this reference for the sample preparation procedure and abbreviations, as well as other relevant information pertaining to this database.
Selected Ion Charge 1
Source of Spectrum Maurer/Meyer/Helfer/Weber c/o Saarland University Homburg/Saar
Spectrum Type ms2
Technique HCD