MSI_000054311

Reliable

排名分数: 2.73
参考来源: MALDI - CHCA (NOVOCELL:BACKGROUND: blank)

M/z: 404.9957
Mass Window: 404.9953 ~ 404.996 (2.7 ppm)

参考注释

Quercetin 3-sulfate_[M+Na]+ (BioDeep_00000004456)
[2-(3,4-dihydroxyphenyl)-5,7-dihydroxy-4-oxo-4H-chromen-3-yl]oxidanesulfonic acid

Formula: C15H10O10S (381.99946800000004)
SMILES: C1=CC(=C(C=C1C2=C(C(=O)C3=C(C=C(C=C3O2)O)O)OS(=O)(=O)O)O)O

N-acyl-d-mannosamine, also known as quercetin 3-(hydrogen sulfate) or quercetin 3-monosulphate, is a member of the class of compounds known as 3-sulfated flavonoids. 3-sulfated flavonoids are flavonoids that are sulfated at the 3-ring position of the flavonoid skeleton. Thus, N-acyl-d-mannosamine is considered to be a flavonoid lipid molecule. N-acyl-d-mannosamine is practically insoluble (in water) and an extremely strong acidic compound (based on its pKa). N-acyl-d-mannosamine can be found in dill, which makes N-acyl-d-mannosamine a potential biomarker for the consumption of this food product. N-acyl-d-mannosamine may be a unique E.coli metabolite.