urine

2,4-Dioxaspiro(5.5)undec-8-ene, 3-(2-furanyl)- (Ulinastatin) ,as an urinary trypsin inhibitor (UTI), is a glycoprotein that is isolated from healthy human urine or synthetically produced.

6-Mercaptopurine hydrate (6-Mercaptopurine monohydrate) is a Nucleoside Metabolic Inhibitor. It interferes with nucleic acid synthesis by inhibiting purine metabolism and is used, usually in combination with other drugs, in the treatment of or in remission maintenance programs for leukemia.

Leonurine (SCM-198) is an alkaloid that has been found in H. leonuri and with anti-oxidative and anti-inflammatory.

6-(γ,γ-Dimethylallylamino)purine (Triacanthine), which is a plant growth substance, shows hypertensive and antitumor activity, also cardiotonic, antispasmodic and a respiratory analeptic.

6-Chloropurine (6-Chloro-9H-purine) is a building block in chemical synthesis,with Antitumor activities.

6-Benzylaminopurine (6-BAP), benzyl adenine or BAP is a first-generation synthetic cytokinin that elicits plant growth and development responses, setting blossoms and stimulating fruit richness by stimulating cell division. It is an inhibitor of respiratory kinase in plants, and increases post-harvest life of green vegetables.

6-Mercaptopurine (6-MP) is an antimetabolite antineoplastic agent with immunosuppressant properties. It interferes with nucleic acid synthesis by inhibiting purine metabolism and is used, usually in combination with other drugs, in the treatment of or in remission maintenance programs for leukemia.

Taurine (2-Aminoethanesulfonic acid), an organic acid, is distributed in various animal tissues.

(+)-Coclaurine is a natural product.

2-Aminopurine-9-beta-D-(2’-deoxy)riboside, a derivative of 2-Aminopurine, is a modified nucleoside composed of a purine base linked to a (2’-deoxy)ribose sugar moiety.

(-)-Coclaurine hydrochloride is an antagonist of nAChRs isolated from Sarcopetalum harveyanum.

7-Methyl-6-mercaptopurine (7-Methyl-6-thiopurine) is an inhibitor of PRPP aminotransferase, inhibits IMP metabolism and prevents purine, DNA and RNA synthesis.

2-Amino-6-cyclopropylamino-9H-purine,the key intermediate of abacavir was synthesized from ethyl cyanoacetate by nitrosation,cyclization with guanidine hydrochloride in the presence of EtONa and reduction to give 2,4,5-triamino-6-hydroxypyrimidine

Dimethylamine hydrochloride (N,N-Dimethylamine) is abundantly present in human urine. Main sources of urinary dimethylamine have been reported to include trimethylamine N-oxide, a common food component, and asymmetric dimethylarginine (ADMA), an endogenous inhibitor of nitric oxide (NO) synthesis. ADMA is excreted in the urine in part unmetabolized and in part after hydrolysis to dimethylamine by dimethylarginine dimethylaminohydrolase (DDAH).

Ferulic Acid (Coniferic acid) is a highly abundant phenolic phytochemical and a type of organic compound found in the Ferula assafoetida L. or Ligusticum chuanxiong.It can be absorbed by the small intestine and excreted through the urine.

3-Methyl-2-oxobutanoic acid (2-Oxoisovaleric acid) is an abnormal metabolite that arises from the incomplete breakdown of branched-chain amino acids. 3-Methyl-2-oxobutanoic acid is a neurotoxin, an acidogen, and a metabotoxin. A neurotoxin causes damage to nerve cells and nerve tissues. 3-Methyl-2-oxobutanoic acid is a keto-acid, which is a subclass of organic acids. Abnormally high levels of organic acids in the blood (organic acidemia), urine (organic aciduria), the brain, and other tissues lead to general metabolic acidosis.

(S)-2-Hydroxy-3-phenylpropanoic acid (L-(−)-3-Phenyllactic acid) is a chiral aromatic compound involved in phenylalanine metabolism. It is likely produced from phenylpyruvate via lactate dehydrogenase. The D-form is derived from bacterial sources, while the L-form is endogenous. Phenyllactate levels are normally very low in blood or urine, but high levels indicate phenylketonuria (PKU) and hyperphenylalaninemia (HPA). PKU is due to a deficiency of phenylalanine hydroxylase (PAH), causing phenylalanine to convert to phenylpyruvic acid rather than tyrosine.

3-Methylbut-2-enoic acid (Senecioic acid) appears in the urine of patients with 3-Methylcrotonic aciduria, which is a disorder characterized by urine that contains increased amounts of 3-methylcrotonic acid.

Methylglutaric acid is a leucine metabolite. A large amount of methylglutaric acid is identified in urine of patients with deficiency of 3-methylglutaconyl coenzyme A hydratase (PMID 6181239 ). Methylglutaric acid is also found to be associated with 3-hyd

2-Methylpentanedioic acid (alpha-Methylglutarate) is an organic acid normally found in human urine, in healthy adults and children. 2-Methylpentanedioic acid (alpha-Methylglutarate) is a metabolite of succinic acid, a citric acid cycle intermediate.

Suberic acid (1,8-Octanedioic acid) is present in the urine of patients with fatty acid oxidation disorders. A metabolic breakdown product derived from oleic acid. Elevated levels of this unstaruated dicarboxylic acid are found in individuals with medium-chain acyl-CoA dehydrogenase deficiency (MCAD). Suberic acid is also associated with carnitine-acylcarnitine translocase deficiency, malonyl-Coa decarboxylase deficiency.

Pipecolic acid (2-Piperidinecarboxylic acid), a metabolite of lysine found in human physiological fluids such as urine, plasma and CSF, is an important regulator of immunity in plants and humans alike.

Citric acid trilithium salt tetrahydrate (Lithium citrate tribasic tetrahydrate) , the active component of Lithium, is a medicine used in the therapy of psychiatric disease. It has shown the effects of signaling pathways and metabolic in the brain based on the particular disease and clinical condition model. According to the reports, Citric acid trilithium salt tetrahydrate was used as a mood stabilizer when treating bipolar mood disorders (BD) and lower the risk of self-harm in BD patient. In addition,Citric acid trilithium salt tetrahydrate has been the choice drug in the therapy of acute manic episodes.Citric acid trilithium salt tetrahydrate also could dissolve uric acid crystals in urine achieved from patients with gout. Besides,Citric acid trilithium salt tetrahydrate have some dose-dependent side-effects. The the main side-effects of Lithium Citrate is the tendency to inhibit the prostatic acid phosphatase enzyme (PAP), which result in the accumulation of PAP.

2-Hydroxyphenylacetic acid (Ortho-Hydroxyphenylacetic acid) can be found in a number of food items such as natal plum, lemon verbena, half-highbush blueberry, and parsley, which makes 2-Hydroxyphenylacetic acid a potential biomarker for the consumption of these food products. 2-Hydroxyphenylacetic acid (Ortho-Hydroxyphenylacetic acid) can be found primarily in blood, feces, and urine.

Allantoin (Glyoxyldiureide), a urea hydantoin found in urine and plants, is used in dermatological preparations.

Calcium 2-hydroxy-4-(methylthio)butanoate (Calcium 2-hydroxy-4-(calcium hydroxymethionine)) is a solid, water-soluble, weakly acidic nutrition enhancer (based on its pKa). This compound, also known as 2-Hydroxy-4-(methylthio)butanoic acid, has been primarily detected in urine and is mainly located in the cytoplasm and adiposome of cells.

3-hydroxybutyric acid is involved in the synthesis and degradation of ketone bodies. Like the other ketone bodies (acetoacetate and acetone), levels of beta-hydroxybutyrate are raised in the blood and urine in ketosis. Beta-hydroxybutyrate is a typical pa

D-(+)-Xylose (Wood sugar) is an aldopentose - a monosaccharide containing five carbon atoms and an aldehyde functional group. It has chemical formula C5H10O5 and is 40% as sweet as sucrose. Xylose is also found in mucopolysaccharides of connective tissue and sometimes in the urine. Xylose is the first sugar added to serine or threonine residues during proteoglycan type O-glycosylation. Therefore xylose is involved in the biosythetic pathways of most anionic polysaccharides such as heparan sulphate and chondroitin sulphate. In medicine, xylose is used to test for malabsorption by administering a xylose solution to the patient after fasting. If xylose is detected in the blood and/or urine within the next few hours, it has been absorbed by the intestines. Xylose is said to be one of eight sugars which are essential for human nutrition, the others being galactose, glucose, mannose, N-acetylglucosamine, N-acetylgalactosamine, fucose, and sialic acid. . Xylose in the urine is a biomarker for the consumption of apples and other fruits.

NSC-16590 (2-Aminoisobutyric acid) is a nonprotein amino acid (is an end product of pyrimidine Metabolism) excreted in the urine of about 5% of healthy individuals, and high excretion is an autosomal recessive phenotype.

H-Abu-OH (L-α-amino-n-Butyric acid) , also known as (S)-2-aminobutanoic acid, homoalanine, 2-AABA, ethylglycine, or L-butyrine, is a member of the class of compounds known as L-alpha-amino acids. H-Abu-OH is a non-proteogenic amino acid that can be found in the human kidney, in liver tissues, and in most biofluids or excreta (e.g. feces, breast milk, urine, and blood). Within the cell, H-Abu-OH is primarily located in the cytoplasm. H-Abu-OH is biosynthesized by transaminating oxobutyrate, a metabolite in isoleucine biosynthesis. As a non-proteogenic amino acid, H-Abu-OH can be used by nonribosomal peptide synthases.

Vildagliptin (LAF237) is a cyanopyrrolidine-based, orally bioavailable inhibitor of dipeptidyl peptidase 4 (DPP-4), with hypoglycemic activity. Vildagliptin's cyano moiety undergoes hydrolysis and this inactive metabolite is excreted mainly via the urine.

3-Furanoic acid (3-Carboxyfuran) is an organic acid regularly occurring in the urine of healthy individuals. 3-Furanoic acid (3-Carboxyfuran) is also a compound found in honey and honeydew samples.

3,3-Dimethylglutaric acid (3,3-Dimethylpentanedioate) is a compound found in human urine.

(E)-Oct-2-enoic acid (2-Octenoate) is an organic acid produced by hepatic microsomal oxidation of aliphatic aldehydes and is a metabolite naturally present in urine and plasma.

Hippuric acid (2-Benzamidoacetic acid) is an acyl glycine formed by the conjugation of benzoic acid with glycine. Hippuric acid) is a normal component of urine and is typically increased with increased consumption of phenolic compounds (tea, wine, fruit juices). These phenols are converted to benzoic acid which is then converted to hippuric acid and excreted in the urine.

N-Acetyl-L-phenylalanine (N-Ac-Phenylalanine) is an essential amino acid produced for medical, feed, and nutritional applications. It appears in large amount in urine of patients with phenylketonuria which is a human genetic disorder due to the lack of phenylalanine hydroxylase, the enzyme necessary to metabolize phenylalanine to tyrosine. Acetylphenylalanine is a product of enzyme phenylalanine N-acetyltransferase in the pathway phenylalanine metabolism.

3-Hydroxybutyric acid (Butanoic acid) (or beta-hydroxybutyrate) is a ketone body. Like the other ketone bodies (acetoacetate and acetone), levels of 3-hydroxybutyrate in blood and urine are raised in ketosis. In humans, 3-hydroxybutyrate is synthesized in the liver from acetyl-CoA and can be used as an energy source by the brain when blood glucose is low. Blood levels of 3-hydroxybutyric acid levels may be monitored in diabetic patients to look for diabetic ketoacidosis. Persistent mild hyperketonemia is a common finding in newborns. Ketone bodies serve as an indispensable source of energy for extrahepatic tissues, especially the brain and lung of developing mammals. Another important function of ketone bodies is to provide acetoacetyl-CoA and acetyl-CoA for the synthesis of cholesterol, fatty acids, and complex lipids. During the early postnatal period, acetoacetate (AcAc) and beta-hydroxybutyrate are preferred over glucose as substrates for synthesis of phospholipids and sphingolipids in accord with requirements for brain growth and myelination. Thus, during the first 2 weeks of postnatal development, when the accumulation of cholesterol and phospholipids accelerates, the proportion of ketone bodies incorporated into these lipids increases. On the other hand, an increased proportion of ketone bodies is utilized for cerebroside synthesis during the period of active myelination. In the lung, AcAc serves better than glucose as a precursor for the synthesis of lung phospholipids. The synthesized lipids, particularly dipalmitoylphosphatidylcholine, are incorporated into surfactant, and thus have a potential role in supplying adequate surfactant lipids to maintain lung function during the early days of life (PMID: 3884391 ). 3-Hydroxybutyric acid is found to be associated with fumarase deficiency and medium-chain acyl-CoA dehydrogenase deficiency, which are inborn errors of metabolism.

3-Methoxytyramine hydrochloride (3-O-methyl Dopamine hydrochloride) is an inactive metabolite of dopamine which can activate trace amine associated receptor 1 (TAAR1). 3-methoxytyramine can be found primarily in human brain and most tissues tissues; and in blood, cerebrospinal fluid (csf) or urine. Within a cell, 3-methoxytyramine is primarily located in the cytoplasm.

Methyl 2-(3-oxo-2-(pent-2-en-1-yl)cyclopentyl)acetate ((±)-Jasmonic Acid methyl ester) induces the synthesis of proteinase inhibitors in plant leaves, suppresses proliferation, and induces apoptosis in cancer cells. It inhibits hexokinase bound to mitochondria, disrupting mitochondrial hexokinase activity to selectively target and kill cancer cells. Derivatives of Methyl 2-(3-oxo-2-(pent-2-en-1-yl)cyclopentyl)acetate also exhibit potential as anti-inflammatory agents, and the compound has been primarily detected in urine.

Pyrrole-2-carboxylic acid (Minaline) was first identified as a degradation product of sialic acids, then as a derivative of the oxidation of the D-hydroxyproline isomers by mammalian D-amino acid oxidase. The latter relationship results from the lability of the direct oxidation product, A'-pyrroline-4-hydroxy-2-carboxylic acid, which loses water spontaneously to form the pyrrole. A similar reaction is catalyzed by the more specific allohydroxy-D-proline oxidase of Pseudomonas. In whole animal observations, pyrrole-2-carboxylate (PCA) ' was identified in rat or human urine after administration of the D-isomers of hydroxyproline, a finding ascribable to the action of D-amino acid oxidase. Urinary excretion of N-(pyrrole-2-carboxyl) glycine has been reported in a 5-year-old affected with type II hyperprolinemia; The child has mild developmental delay, recurrent seizures of the grand mal type and EEG alterations.

3-Hydroxyisovaleric acid (Beta-Hydroxyisovaleric acid) is an endogenous metabolite excreted in the urine and can serve as an early and sensitive indicator of biotin deficiency.

Creatine (Methylguanidoacetic acid) is an amino acid that occurs in vertebrate tissues and in urine. In muscle tissue, creatine generally occurs as phosphocreatine. Creatine is excreted as creatinine in the urine. Creatine functions as part of the cell's energy shuttle. The high energy phosphate group of ATP is transferred to creatine to form phosphocreatine in the following reaction: Cr + ATP <-> PCr + ADP. This reaction is reversibly catalyzed by creatine kinase. In the human body, creatine is synthesized mainly in the liver by the use of parts from three different amino acids: arginine, glycine, and methionine. 95% of it is later stored in the skeletal muscles and the rest is stored in the brain, heart, and testes.

Copper tripeptide (GHK-Cu) is a naturally occurring copper complex of the tripeptide glycyl-L-histidyl-L-lysine, with a strong affinity for copper(II). First isolated from human plasma, it is also found in saliva and urine.

1-Hydroxypyrene (1-Pyrenol), a biomarker of exposure to polycyclic aromatic hydrocarbons, is analyzed in urine samples.

Oxalic acid dihydrate (Ethanedioic acid dihydrate) is a strong dicarboxylic acid occurring in many plants and vegetables. It is produced in the body by metabolism of glyoxylic acid or ascorbic acid. It is not metabolized but excreted in the urine. It is used as an analytical reagent and general reducing agent.

Trans-Aconitic acid is normally present in normal human urine, and it has been suggested that is present in larger amounts with Reye's syndrome and organic aciduria. trans-Aconitic acid is a substrate of enzyme trans-aconitate 2-methyltransferase (EC 2.1.

3-(3-Methoxyphenyl)propionic acid (3-Methoxyhydrocinnamic acid) is a naturally occurring human metabolite, It is an organic acid and excreted in human urine.

2-Hydroxy-2-methylbutyric acid is an unusual metabolite found in the urine of patients with 2-hydroxyglutaric aciduria and maple syrup urine disease.

Isethionic acid sodium salt (Sodium isethionate) is an organosulfur compound containing a short chain alkane sulfonate linked to a hydroxyl group. Mammals are able to endogenously synthesize Isethionic acid sodium salt via taurine through a possible enzymatic deamination process. Isethionic acid sodium salt can be found in both human plasma and urine. Higher plasma levels of Isethionic acid sodium salt have been shown to be protective against type 2 diabetes.

Oxalic acid is a strong dicarboxylic acid occurring in many plants. Oxalic acid is produced in the body by metabolism of glyoxylic acid or ascorbic acid.