Microbial Metabolite Standards

4-Methyl-2-oxopentanoic acid (Standard) is the analytical standard of 4-Methyl-2-oxopentanoic acid. This product is intended for research and analytical applications. 4-Methyl-2-oxopentanoic acid (α-Ketoisocaproic acid), an abnormal metabolite, is both a neurotoxin and a metabotoxin.

5-Hydroxyindole-3-acetic acid (Standard) is the analytical standard of 5-Hydroxyindole-3-acetic acid. This product is intended for research and analytical applications. 5-Hydroxyindole-3-acetic acid is the main metabolite of serotonin or metanephrines, which can be used as a biomarker of neuroendocrine tumors.

Homovanillic acid (Standard) (Vanilacetic acid (Standard)) is the analytical standard of Homovanillic acid (HY-N0384). This product is intended for research and analytical applications. Homovanillic acid (Vanilacetic acid) is a dopamine metabolite found to be associated with aromatic L-amino acid decarboxylase deficiency, celiac disease, growth hormone deficiency, and sepiapterin reductase deficiency.

Chenodeoxycholic Acid (Standard) is the analytical standard of Chenodeoxycholic Acid. This product is intended for research and analytical applications. Chenodeoxycholic Acid is a hydrophobic primary bile acid that activates nuclear receptors (FXR) involved in cholesterol metabolism.

3,4-Dihydroxybenzeneacetic acid (Standard) is the analytical standard of 3,4-Dihydroxybenzeneacetic acid. This product is intended for research and analytical applications. 3,4-Dihydroxybenzeneacetic acid is the main neuronal metabolite of dopamine.

L-Methionine (Standard) is the analytical standard of L-Methionine. This product is intended for research and analytical applications. L-Methionine is an L-isomer of orally active Methionine, an essential amino acid. Methionine is a strong liver antidote that acts as a liver protector. L-Methionine can inhibit cell proliferation and induce cell apoptosis. L-Methionine has antitumor and antioxidant activity.

Metronidazole (Standard) is the analytical standard of Metronidazole. This product is intended for research and analytical applications. Metronidazole is an orally active nitroimidazole antibiotic. Metronidazole can cross blood brain barrier. Metronidazole can be used for the research of anaerobic infections.

Cytarabine (Standard) is the analytical standard of Cytarabine. This product is intended for research and analytical applications. Cytarabine, a nucleoside analog, causes S phase cell cycle arrest and inhibits DNA polymerase. Cytarabine inhibits DNA synthesis with an IC₅₀ of 16 nM. Cytarabine has antiviral effects against HSV. Cytarabine shows anti-orthopoxvirus activity.

Fumaric acid (Standard) is the analytical standard of Fumaric acid (HY-W015883). This product is intended for research and analytical applications. Fumaric acid is an unsaturated dicarbonic acid, an intermediate product of the citric acid cycle that provides intracellular energy in the form of ATP. Fumaric acid exerts anti-inflammatory effects by inhibiting the NF-κB signaling pathway dependent on p38 MAPK. Fumaric acid can be used in the study of pregnancy-induced hypertension.

Salicylic acid (Standard) is the analytical standard of Salicylic acid. This product is intended for research and analytical applications. Salicylic acid (2-Hydroxybenzoic acid) inhibits cyclo-oxygenase-2 (COX-2) activity independently of transcription factor (NF-κB) activation.

Indole (Standard) is the analytical standard of Indole. This product is intended for research and analytical applications. Indole is an aromatic, heterocyclic, organic compound which widely distributed in the natural environment and can be produced by a variety of bacteria. Indole regulates various aspects of bacterial physiology, including spore formation, plasmid stability, resistance to drugs, biofilm formation, and virulence as an intercellular signal molecule.

Deoxycholic acid (Standard) is the analytical standard of Deoxycholic acid. This product is intended for research and analytical applications. Deoxycholic acid (cholanoic acid), a bile acid, is a by-product of intestinal metabolism, that activates the G protein-coupled bile acid receptorTGR5.

Acarbose (Standard) is the analytical standard of Acarbose. This product is intended for research and analytical applications. Acarbose (BAY g 5421), antihyperglycemic agent, is an orally active alpha-glucosidase inhibitor (IC50=11 nM). Acarbose can potentiate the hypoglycemic effects of sulfonylureas or insulin.

Melatonin (Standard) is the analytical standard of Melatonin. This product is intended for research and analytical applications. Melatonin is a hormone made by the pineal gland that can activates melatonin receptor. Melatonin plays a role in sleep and possesses important antioxidative and anti-inflammatory properties. Melatonin is a novel selective ATF-6 inhibitor and induces human hepatoma cell apoptosis through COX-2 downregulation. Melatonin attenuates palmitic acid-induced (HY-N0830) mouse granulosa cells apoptosis via endoplasmic reticulum stress.

Pregnenolone (Standard) is the analytical standard of Pregnenolone. This product is intended for research and analytical applications. Pregnenolone (3β-Hydroxy-5-pregnen-20-one) is a powerful neurosteroid, the main precursor of various steroid hormones including steroid ketones. Pregnenolone acts as a signaling-specific inhibitor of cannabinoid CB1 receptor, inhibits the effects of tetrahydrocannabinol (THC) that are mediated by the CB1 receptors. Pregnenolone can protect the brain from cannabis intoxication. Pregnenolone is also a TRPM3 channel activator, and also can weakly activate TRPM1 channels.

Eicosapentaenoic Acid (Standard) is the analytical standard of Eicosapentaenoic Acid. This product is intended for research and analytical applications. Eicosapentaenoic Acid (EPA) is an orally active Omega-3 long-chain polyunsaturated fatty acid (ω-3 LC-PUFA). Eicosapentaenoic Acid exhibits a DNA demethylating action that promotes the re-expression of the tumor suppressor gene CCAAT/enhancer-binding protein δ (C/EBPδ). Eicosapentaenoic Acid activates RAS/ERK/C/EBPβ pathway through H-Ras intron 1 CpG island demethylation in U937 leukemia cells. Eicosapentaenoic Acid can promote relaxation of vascular smooth muscle cells and vasodilation.

D-Glucuronic acid (Standard) is the analytical standard of D-Glucuronic acid. This product is intended for research and analytical applications. D-Glucuronic acid is a major component of many anti-inflammatory proteoglycans, which can promote embryonic development and inhibit cell aggregation. After being metabolized into ethyl glucuronide (HY-113093), D-Glucuronic acid activates Toll-like receptor 4 (TLR4), causing pain. D-Glucuronic acid and its derivative glucurono-lactone can serve as liver detoxifiers for human health prevention, and its derivatives also possess anti-tumor activity.

N-Acetylneuraminic acid (Standard) is the analytical standard of N-Acetylneuraminic acid. This product is intended for research and analytical applications. N-Acetylneuraminic acid (NANA; Lactaminic acid), a nonphenolic structure, is the predominant form of sialic from Collocalia esculenta. N-Acetylneuraminic acid plays a biological role in myocardial injury, melanoma and viral or bacterial infection. N-Acetylneuraminic acid inhibits melanogenesis by reducing tyrosinase activity and triggers myocardial injury in vitro and in vivo by activation of the Rho/Rho-associated signaling pathway through binding to RhoA and Cdc42. N-Acetylneuraminic acid may prevent high fat diet (HFD)-induced inflammation and oxidative stress, thereby prevents hyperlipidemia-associated inflammation and oxidative stress. N-Acetylneuraminic acid is promising for research in the field of melanoma, coronary artery, obesity-related diseases and hyperlipidemia.

Caffeic acid (Standard) is the analytical standard of Caffeic acid. This product is intended for research and analytical applications. Caffeic acid is an inhibitor of both TRPV1 ion channel and 5-Lipoxygenase (5-LO).

L-Dihydroorotic acid (Standard) is an analytical reference standard for L-Dihydroorotic acid. This product is used for research and analytical applications. L-Dihydroorotic acid is an important intermediate in the metabolism of orotic acid and a substrate of dihydroorotate dehydrogenase (DHODH). L-Dihydroorotic acid can reversibly hydrolyze to yield the acyclic L-ureidosuccinic acid by dihydrowhey enzyme.