Homovanillic acid (HOC6H3(OCH3)CH2COOH; synonyms: 3-methoxy-4-hydroxyphenyl acetic acid; HVA; 4-hydroxy-3-methoxy-benzeneacetic acid; 4-hydroxy-3-methoxyphenylacetic acid) is a major catecholamine metabolite and is produced by the consecutive action of monoamine oxidase and catechol-O-methyl transferase on dopamine.
Dihydroxyphenylethylene glycol
Dihydroxyphenylethylene glycol (DOPEG) is a metabolite of norepinephrine through monoamine oxidase.
3,4-Dihydroxymandelic acid
3,4-Dihydroxymandelic acid (DHMA, DOMA) is a metabolite of norepinephrine.
3,4-Dihydroxyphenylacetic acid
3,4-Dihydroxyphenylacetic acid (DOPAC) is a metabolite of the neurotransmitter dopamine.
3,4-Dihydroxyphenylacetaldehyde
3,4-Dihydroxyphenylacetaldehyde (DOPAL) is a metabolite of the neurotransmitter dopamine.
4-Hydroxybenzoic acid
4-Hydroxybenzoic acid, also known as p-hydroxybenzoic acid (PHBA), is a monohydroxybenzoic acid, a phenolic derivative of benzoic acid.
Vanillylmandelic acid
Vanillylmandelic acid (VMA) is a chemical intermediate in the synthesis of artificial vanilla flavorings and is an end-stage metabolite of the catecholamines, epinephrine, and norepinephrine.
Urolithin A
Urolithin A is a urolithin, a type of microflora human metabolite of dietary ellagic acid derivatives, such as ellagitannins.
3,5-Dihydroxyphenylpropionoic acid
3,5-Dihydroxyphenylpropionoic acid is a metabolite of alkylresorcinols, first identified in human urine and can be quantified in urine and plasma, and may be an alternative, equivalent biomarker of whole grain wheat intake.
Trans-Resveratrol-3-O-glucuronide
trans-Resveratrol-3-O-glucuronide is a metabolite of resveratrol and trans-resveratrol-3-O-glucoside (piceid).
3-Methoxy-4-hydroxyphenylglycol
3-Methoxy-4-hydroxyphenylglycol (MHPG, MOPEG) is a metabolite of norepinephrine degradation.
2,3-Dihydroxycinnamic acid
2,3-Dihydroxycinnamic acid is a hydroxycinnamic acid.
3,5-Dihydroxycinnamic acid
3,5-Dihydroxycinnamic acid is a hydroxycinnamic acid.
1-Hydroxyphenanthrene
1-Hydroxyphenanthrene is a phenanthrol and a human metabolite of phenanthrene that can be detected in urine of persons exposed to PAHs.
Urolithin B
Urolithin B is an urolithin, a type of phenolic compounds produced in the human gut after absorption of ellagitannins-containing food such as pomegranate, strawberries, red raspberries, walnuts or oak-aged red wine.
3,5-Dihydroxybenzoic acid
3,5-Dihydroxybenzoic acid (α-resorcylic acid) is a dihydroxybenzoic acid.