Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Chemical compound
Hippuric acid (Gr. hippos, horse, ouron, urine) is a carboxylic acid and organic compound. It is found in urine and is formed from the combination of benzoic acid and glycine. Levels of hippuric acid rise with the consumption of phenolic compounds (such as in fruit juice, tea and wine). The phenols are first converted to benzoic acid, and then to hippuric acid and excreted in urine.[1]
Hippuric acid crystallizes in rhombic prisms which are readily soluble in hot water, melt at 187 °C, and decompose at about 240 °C.[2] High concentrations of hippuric acid may also indicate a toluene intoxication; however, scientists have called this correlation into question because there are other variables that affect levels of hippuric acid.[3] When many aromatic compounds such as benzoic acid and toluene are taken internally, they are converted to hippuric acid by reaction with the amino acid, glycine.
^One or more of the preceding sentences incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Hippuric Acid". Encyclopædia Britannica. Vol. 13 (11th ed.). Cambridge University Press. p. 523.
^Pero, RW (2010). "Health consequences of catabolic synthesis of hippuric acid in humans". Current Clinical Pharmacology. 5 (1): 67–73. doi:10.2174/157488410790410588. PMID 19891605.
Hippuricacid (Gr. hippos, horse, ouron, urine) is a carboxylic acid and organic compound. It is found in urine and is formed from the combination of benzoic...
determined the composition of benzoic acid. These latter also investigated how hippuricacid is related to benzoic acid. In 1875 Salkowski discovered the...
produced it by treating hippuricacid with nitric acid and nitrogen dioxide to form an ester of benzoic acid and glycolic acid (C6H5C(=O)OCH2COOH), which...
converts to the amidocarboxylic acid, such as hippuricacid and acetylglycine. With nitrous acid, one obtains glycolic acid (van Slyke determination). With...
benzoic acid and its salts than rats and mice. The human body rapidly clears sodium benzoate by combining it with glycine to form hippuricacid which is...
used as a biomarker to determine exposure to xylene. Hippuricacid "HIPPURIC and METHYL HIPPURICACIDS in urine" (PDF). NIOSH Manual of Analytical Methods...
or hippuricacid. Benzoyl glucuronide is produced by the reaction of benzoic acid with glucuronic acid, which accounts for 10–20% of benzoic acid elimination...
Aminohippuric acid or para-aminohippuric acid (PAH), a derivative of hippuricacid, is a diagnostic agent useful in medical tests involving the kidney...
Friedrich Christian Hofmann in Leer from Cinchona. Its transformation into hippuricacid by animal metabolism was studied by German chemist Eduard Lautemann...
pathway of benzoic acid excretion as hippuricacid. Schrör K (2016). "Biotransformations of Salicylic Acid". Acetylsalicylic acid (Second ed.). Weinheim...
non-toxic to humans. Phenylacetone is oxidized to benzoic acid, which is converted to hippuricacid by glycine N-acyltransferase (GLYAT) enzymes prior to...
In humans, acetophenone is metabolized to benzoic acid, carbonic acid, and acetone. Hippuricacid occurs as an indirect metabolite and its quantity in...
rapidly in healthy individuals to benzoic acid, conjugated with glycine in the liver, and excreted as hippuricacid. Very high concentrations can result in...
is metabolized to mandelic acid, phenylglyoxylic acid, benzoic acid and hippuricacid. Hydrogenation of styrene oxide affords phenethyl alcohol. Since...
to 1-phenylethanol, acetophenone, phenylglyoxylic acid, mandelic acid, benzoic acid and hippuricacid. Ethylbenzene exposure can be determined by testing...
to benzoic acid and benzyl alcohol. Benzyl alcohol is subsequently metabolized to benzoic acid. The conjugates of benzoic acid (hippuricacid and the glucuronide...
the laboratory, they contain a weak organic acid, hippuricacid, which caused the urine to become more acidic instead. Historically, the medical application...
his graduation in 1856, he wrote his dissertation on the synthesis of hippuricacid in the human body. Immediately after university, Weismann took on a...
4-hydroxyamphetamine, 4-hydroxynorephedrine, 4-hydroxyphenylacetone, benzoic acid, hippuricacid, norephedrine, and phenylacetone. Among these metabolites, the active...
animal origin of the sample and identifies the source as urine based on hippuricacid which is a key marker. The pigment can be clearly distinguished by spectroscopic...
medium-chain acid:CoA ligases and requires energy in the form of ATP. ... The benzoyl-CoA is then conjugated to glycine by GLYAT to form hippuricacid, releasing...
processes, and fireproof materials. As the mandelic acid salt (methenamine mandelate) or the hippuricacid salt (methenamine hippurate), it is used for the...
4-hydroxyamphetamine, 4-hydroxynorephedrine, 4-hydroxyphenylacetone, benzoic acid, hippuricacid, norephedrine, and phenylacetone. Among these metabolites, the active...
medium-chain acid:CoA ligases and requires energy in the form of ATP. ... The benzoyl-CoA is then conjugated to glycine by GLYAT to form hippuricacid, releasing...