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Clicking on any metabolite link will take you to the Human Metabolome Database.
Displaying metabolites 201 - 220 of 450 in total
HMDB ID
CAS Number
Name StructureFormula
Average Mass
Monoisotopic Mass
Biospecimen Location
Hypoxanthine HMDB0000157 structure imageC5H4N4O

136.1115
136.03851077
  • Amniotic Fluid
  • Blood
  • Breast Milk
  • Cellular Cytoplasm
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Saliva
  • Urine
Isoleucine HMDB0000172 structure imageC6H13NO2

131.1729
131.094628665
  • Blood
  • Breast Milk
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Saliva
  • Sweat
  • Urine
Inosinic acid HMDB0000175 structure imageC10H13N4O8P

348.206
348.047099924
  • Blood
  • Cellular Cytoplasm
  • Cerebrospinal Fluid (CSF)
  • Feces
Isocitric acid HMDB0000193 structure imageC6H8O7

192.1235
192.02700261
  • Blood
  • Cellular Cytoplasm
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Saliva
  • Semen
  • Urine
Inosine HMDB0000195 structure imageC10H12N4O5

268.2261
268.080769514
  • Blood
  • Cellular Cytoplasm
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Pericardial Effusion
  • Saliva
  • Urine
Indoleacetic acid HMDB0000197 structure imageC10H9NO2

175.184
175.063328537
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Saliva
  • Urine
Iodine HMDB0000675 structure imageI2

253.8089
253.80893684
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Urine
Indoxyl sulfate HMDB0000682 structure imageC8H7NO4S

213.21
213.009578407
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Urine
Ketoleucine HMDB0000695 structure imageC6H10O3

130.1418
130.062994186
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Saliva
  • Urine
Kynurenic acid HMDB0000715 structure imageC10H7NO3

189.1675
189.042593095
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Urine
Isovaleric acid HMDB0000718 structure imageC5H10O2

102.1317
102.068079564
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Saliva
  • Urine
Isopropyl alcohol HMDB0000863 structure imageC3H8O

60.095
60.057514878
  • Blood
  • Breath
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Saliva
  • Urine
Isobutyric acid HMDB0001873 structure imageC4H8O2

88.1051
88.0524295
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Saliva
  • Urine
Ibuprofen HMDB0001925 structure imageC13H18O2

206.2808
206.13067982
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Urine
Imidazoleacetic acid HMDB0002024 structure imageC5H6N2O2

126.1133
126.042927446
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Urine
Isovaleraldehyde HMDB0006478 structure imageC5H10O

86.1323
86.073164942
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Saliva
  • Urine
Hydroxysphingomyeline C16:1 HMDB0013463 structure imageC39H77N2O7P

717.0116
716.54683934
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Saliva
  • Urine
Hydroxysphingomyeline C22:1 HMDB0013466 structure imageC45H89N2O7P

801.1711
800.640739724
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Saliva
  • Urine
Hydroxysphingomyeline C22:2 HMDB0013467 structure imageC45H87N2O7P

799.1552
798.62508966
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Saliva
  • Urine
Hydroxysphingomyeline C24:1 HMDB0013469 structure imageC47H93N2O7P

829.2243
828.672039852
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Saliva
  • Urine
Displaying metabolites 201 - 220 of 450 in total