Human Metabolome Database: Browsing metabolites

HMDB ID CAS Number	Name	Formula Average Mass Monoisotopic Mass	Biospecimen Location
HMDB0248323	Carbamoyl	CH₂NO 44.033 44.013638688	Blood
HMDB0035807 10024-97-2	Nitrous oxide	N₂O 44.0128 44.001062632
HMDB0001967 124-38-9	Carbon dioxide	CO₂ 44.0095 43.989829244	Blood Urine
HMDB0034769 13460-50-9	Boric acid (HBO2)	BHO₂ 43.818 44.006959742	Saliva
HMDB0248809	Aziridine	C₂H₅N 43.0678 43.042199165	Blood
HMDB0253241	Hydrazoic acid	HN₃ 43.029 43.017047044	Blood
HMDB0253627	Isocyanic acid	CHNO 43.0247 43.005813659	Blood
HMDB0002078 71000-82-3	Cyanate	CHNO 43.0247 43.005813659	Blood
HMDB0250673	Cyclopropane	C₃H₆ 42.081 42.046950193	Blood
HMDB0256839	Propylene	C₃H₆ 42.0797 42.046950192	Blood
HMDB0250603	Cyanamide	CH₂N₂ 42.04 42.021798074	Blood
HMDB0251153	Diazomethane	CH₂N₂ 42.04 42.021798074	Blood
HMDB0252013	Ketene	C₂H₂O 42.037 42.010564684	Blood
HMDB0255989	Oxirene	C₂H₂O 42.037 42.010564684	Blood
HMDB0061869 75-05-8	Acetonitrile	C₂H₃N 41.0519 41.026549101	Feces Saliva
HMDB0000464 7440-70-2	Calcium	Ca 40.078 39.962591155	Blood Cerebrospinal Fluid (CSF) Saliva Urine
HMDB0256844	Propyne	C₃H₄ 40.065 40.031300129	Blood
HMDB0250677	Cyclopropene	C₃H₄ 40.065 40.031300129	Blood
HMDB0248153	Allene	C₃H₄ 40.065 40.031300129	Blood
HMDB0037240 7440-37-1	Argon	Ar 39.948 39.962383123
HMDB0000586 7440-09-7	Potassium	K 39.0983 38.963706861	Blood Cerebrospinal Fluid (CSF) Saliva Urine
HMDB0002306 7647-01-0	Hydrochloric acid	ClH 36.461 35.976677739
HMDB0000492 16887-00-6	Chloride ion	Cl 35.453 34.968852707	Blood Cerebrospinal Fluid (CSF) Saliva Sweat Urine
HMDB0250101	Chlorine atom	Cl 35.45 34.9688527	Blood
HMDB0003276 7783-06-4	Hydrogen sulfide	H₂S 34.081 33.987720754	Blood Feces

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