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Displaying metabolites 4121 - 4140 of 5662 in total
HMDB ID
CAS Number
Name StructureFormula
Average Mass
Monoisotopic Mass
Biospecimen Location
2-Ketobutyric acid HMDB0000005 structure imageC4H6O3

102.0886
102.031694058
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Saliva
  • Urine
Acetoacetic acid HMDB0000060 structure imageC4H6O3

102.0886
102.031694058
  • Blood
  • Cellular Cytoplasm
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Saliva
  • Urine
Dihydrouracil HMDB0000076 structure imageC4H6N2O2

114.1026
114.042927446
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Saliva
  • Urine
Methylmalonic acid HMDB0000202 structure imageC4H6O4

118.088
118.02660868
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Urine
Succinic acid HMDB0000254 structure imageC4H6O4

118.088
118.02660868
  • Blood
  • Breast Milk
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Saliva
  • Sweat
  • Urine
Allantoin HMDB0000462 structure imageC4H6N4O3

158.1154
158.043990078
  • Blood
  • Cerebrospinal Fluid (CSF)
  • Feces
  • Saliva
  • Urine
Succinic acid semialdehyde HMDB0001259 structure imageC4H6O3

102.0886
102.031694058
  • Cerebrospinal Fluid (CSF)
  • Urine
5-Aminoimidazole-4-carboxamide HMDB0003192 structure imageC4H6N4O

126.1166
126.054160834
  • Blood
  • Urine
N-Methylhydantoin HMDB0003646 structure imageC4H6N2O2

114.1026
114.042927446
  • Blood
  • Feces
  • Urine
Methimazole HMDB0014901 structure imageC4H6N2S

114.169
114.025168892
  • Blood
  • Urine
Acetazolamide HMDB0014957 structure imageC4H6N4O3S2

222.245
221.988131458
  • Blood
  • Urine
Fomepizole HMDB0015344 structure imageC4H6N2

82.1038
82.053098202
  • Blood
  • Urine
Erythrityl Tetranitrate HMDB0015551 structure imageC4H6N4O12

302.11
301.998221676
  • Blood
  • Urine
Acesulfame HMDB0033585 structure imageC4H5NO4S

163.152
162.993928343
  • Blood
  • Feces
  • Urine
Thiodiacetic acid HMDB0042032 structure imageC4H6O4S

150.153
149.99867937
  • Urine
4-Hydroxymethylpyrazole HMDB0060768 structure imageC4H6N2O

98.1032
98.048012824
  • Blood
  • Urine
N-Oxalylglycine ThumbC4H5NO5

147.0862
147.016772275
  • Blood
  • Urine
(R)-5-Methylhydantoin ThumbC4H6N2O2

114.104
114.042927441
  • Blood
  • Urine
cyclo(gly-gly) ThumbC4H6N2O2

114.1026
114.042927446
  • Blood
  • Urine
Ureidoacrylic acid ThumbC4H6N2O3

130.103
130.037842061
  • Blood
  • Urine
Displaying metabolites 4121 - 4140 of 5662 in total