Fatty Esters

Acetyl-coenzyme A (Acetyl-CoA) trisodium is a membrane-impermeant central metabolic intermediate, participates in the TCA cycle and oxidative phosphorylation metabolism. Acetyl-coenzyme A trisodium, regulates various cellular mechanisms by providing (sole donor) acetyl groups to target amino acid residues for post-translational acetylation reactions of proteins. Acetyl Coenzyme A trisodium is also a key precursor of lipid synthesis.

Lactyl-CoA is an acyl-CoA formally condensed from the sulfhydryl group of CoA and the carboxyl group of lactic acid, also known as lactyl-CoA. Lactyl-CoA is essential for the biosynthesis of biodegradable and biocompatible lactic acid-based copolymers.

Succinyl CoA (Succinyl-coenzyme A) sodium is a pivotal intermediate metabolite in the tricarboxylic acid cycle and a key coenzyme A metabolite. Succinyl CoA sodium is biosynthesized from α-ketoglutarate or propionyl-CoA. Succinyl CoA sodium acts as a critical precursor and substrate for heme biosynthesis and gluconeogenesis. Succinyl CoA sodium insufficiency caused by cobalamin deficiency is directly linked to growth retardation, impaired heme synthesis, tissue glycine accumulation and neurological abnormalities. Succinyl CoA sodium can be used in research on metabolic, neurological, and hematological abnormalities (such as porphyria) caused by nutritional vitamin B12 deficiency (leading to a lack of Succinyl-Coenzyme A synthesis).

Malonyl CoA (Malonyl Coenzyme A) lithium is an inhibitor of carnitine palmitoyl transferase 1 (CPT1). High Malonyl CoA lithium concentrations suppress fatty acid oxidation, while low Malonyl CoA lithium concentrations are permissive for fat oxidation.

Acetyl-L-carnitine (O-Acetyl-L-carnitine; ALCAR) is an orally active mitochondrial energy metabolism regulator and neuroprotectant that can penetrate the blood-brain barrier. Acetyl-L-carnitine selectively enters cells and the brain through the organic cation transporter OCTN2. Acetyl-L-carnitine can participate in fatty acid β-oxidation, promote acetylcholine synthesis, regulate mitochondrial function and inhibit oxidative stress as an acetyl donor. Acetyl-L-carnitine exerts its activity by enhancing energy metabolism, protecting neurons and improving synaptic plasticity. Acetyl-L-carnitine is mainly used in the study of neurodegenerative diseases and metabolic disorder-related diseases such as neonatal hypoxic-ischemic brain damage, Alzheimer's disease, and depression.

(Z)-11-Hexadecenyl acetate is a component of insect sex pheromones, which elicits electroantennogram responses in male Plutella xylostella and induces their wing-fanning and claspers-exposing behaviors. (Z)-11-Hexadecenyl acetate also serves as a sex pheromone component of Spodoptera exigua and Chilo suppressalis. When used in combination with other pheromones, (Z)-11-Hexadecenyl acetate significantly enhances the attraction effect on male Tryporyza incertulas, and it exists in trace amounts in the eluate of the ovipositor of female Tryporyza incertulas. (Z)-11-Hexadecenyl acetate shows no attraction effect on male Cnaphalocrocis medinalis and exhibits species specificity.

(+)-Decanoylcarnitine is an (S)-acylcarnitine derivative and a potent inhibitor of carnitine-acylcarnitine translocase, with an IC₅₀ of 5 μM. (+)-Decanoylcarnitine acts as a competitive inhibitor of long-chain acylcarnitine transferase and (-)-carnitine palmityltransferase. (+)-Decanoylcarnitine blocks hepatic fatty acid oxidation, ketogenesis, oleate-induced activation of gluconeogenesis, as well as associated changes in acetyl-CoA, citrate, redox pair ratios, flavins and pyridine nucleotides. (+)-Decanoylcarnitine reverses ketosis in vivo, enhances insulin-mediated hypoglycemic effects in anesthetized animals, and reduces plasma ketone body levels when used in combination with insulin. (+)-Decanoylcarnitine can be used in studies related to diabetic ketoacidosis.

3-Oxotetradecanoyl-CoA is a 3-oxo fatty acyl-CoA. 3-Oxotetradecanoyl-CoA can function as a metabolite in humans, Saccharomyces cerevisiae, Escherichia coli, and mice. 3-Oxotetradecanoyl-CoA is a preferred substrate for thiolytic cleavage by P-44 (type II 3-oxoacyl-CoA thiolase).

Acetyl-L-carnitine (O-Acetyl-L-carnitine; ALCAR) hydrochloride is an orally active mitochondrial energy metabolism regulator and neuroprotectant that can penetrate the blood-brain barrier. Acetyl-L-carnitine hydrochloride selectively enters cells and the brain through the organic cation transporter OCTN2. Acetyl-L-carnitine hydrochloride can participate in fatty acid β-oxidation, promote acetylcholine synthesis, regulate mitochondrial function and inhibit oxidative stress as an acetyl donor. Acetyl-L-carnitine hydrochloride exerts its activity by enhancing energy metabolism, protecting neurons and improving synaptic plasticity. Acetyl-L-carnitine hydrochloride is mainly used in the study of neurodegenerative diseases and metabolic disorder-related diseases such as neonatal hypoxic-ischemic brain damage, Alzheimer's disease, and depression.

DL-Mevalonolactone ((±)-Mevalonolactone;Mevalolactone) is the δ-lactone form of mevalonic acid, a precursor in the mevalonate pathway. DL-Mevalonolactone is orally active against HMGCR mutation and statin caused myopathy. DL-Mevalonolactone induces inflammation and oxidative stress response with decreased mitochondrial membrane potential (MMP) and induces mitochondrial swelling^[2][4].

L-Palmitoylcarnitine, a long-chain acylcarnitine and a fatty acid metabolite, accumulates in the sarcolemma and deranges the membrane lipid environment during ischaemia. L-Palmitoylcarnitine inhibits K_ATP channel activity, without affecting the single channel conductance, through interaction with Kir6.2.

Butyrylcarnitine is an endogenous metabolite found in plasma. Elevated levels of Butyrylcarnitine are closely associated with abnormalities in lipid and energy metabolism. Butyrylcarnitine can serve as a diagnostic and prognostic indicator for certain diseases, such as heart failure and head and neck cancer.

L-Palmitoylcarnitine chloride, a long-chain acylcarnitine and a fatty acid metabolite, accumulates in the sarcolemma and deranges the membrane lipid environment during ischaemia. L-Palmitoylcarnitine chloride inhibits K_ATP channel activity, without affecting the single channel conductance, through interaction with Kir6.2.

Acetylcarnitine is a CNS-penetrant endogenous metabolite. Acetylcarnitine shuttling links mitochondrial metabolism to histone acetylation and lipogenesis. Acetylcarnitine attenuates oxidative stress and neuroinflammation. Acetylcarnitine can be used for fatigue-associated diseases research. Acetylcarnitine can be used as a candidate diagnostic and prognostic biomarker of hepatocellular carcinoma.

Stearoylcarnitine, a fatty ester lipid molecule, is an endogenous metabolite. Stearoylcarnitine can be used as PKC inhibitor. Stearoylcarnitine accumulates in β cells, leading to arrest of insulin synthesis and energy deficiency in type 2 diabetes mouse. Stearoylcarnitine inhibits lecithin cholesterol acyltransferase (LCAT) in rat and rabbits plasma. Stearoylcarnitine acts as a metabolomics biomarker for Parkinson’s disease. Stearoylcarnitine is a less potent inhibitor of GlyT2.

Palmitoylcarnitine chloride is a fatty acid-derived mitochondrial substrate, and selectively decreases cell survival in colorectal and prostate cancer cells by affecting on pro-inflammatory pathways, Ca²⁺ influx, and DHT-like effects.

Ascorbyl palmitate is an orally active ester formed from ascorbic acid and palmitic acid, used as an antioxidant and food additive. Ascorbyl palmitate in preventing fat and oil oxidation is more efficient than Butylated hydroxyanisole (HY-B1066) and Butylated hydroxytoluene (HY-Y0172). Ascorbyl palmitate mitigates inhibition of collagen synthesis by select calcium and sodium channel blockers. Ascorbyl palmitate induces Apoptosis in human umbilical vein endothelial cells (HUVECs). Ascorbyl palmitate ameliorates inflammatory diseases by inhibition of NLRP3 inflammasome.

DL-β-Hydroxybutyryl coenzyme A lithium is an intermediate in the fermentation of butyric acid and the metabolism of lysine and tryptophan, and is produced from β-hydroxybutyric acid by short-chain-CoA synthase.

Dodecanoylcarnitine ((-)-Lauroylcarnitine) is a medium long-chain acylcarnitine, an intermediate product in key energy metabolic pathways of fatty acid β-oxidation and amino acids catabolism. The abnormal decrease in the Dodecanoylcarnitine levels indicats that mitochondrial fuel metabolism, including fatty acid oxidation is significantly disturbed. Changes in plasma concentrations of Dodecanoylcarnitine are not only associated with type II diabetes, but also with pre-diabetes status. Dodecanoylcarnitine is present in fatty acid oxidation disorders such as long-chain acyl CoA dehydrogenase deficiency, carnitine palmitoyltransferase I/II deficiency, and is also associated with celiac disease. Dodecanoylcarnitine deomonstrates high sensitivities and specificities in predicting asthma. Combined model of Decanoylcarnitine (HY-113069), Dodecanoylcarnitine, PC (16:0/0:0), and Asp Arg Pro can be used as a potential biomarker for the diagnosis of Yin-deficiency-heat syndrome.

Tetradecanoylcarnitine is an acylcarnitine involved in mitochondrial β-oxidation of long-chain saturated fatty acids and fatty acid metabolism. Tetradecanoylcarnitine serves as a biomarker for very long-chain acyl-CoA dehydrogenase deficiency and MPTP (HY-15608)-induced Parkinson's disease. Tetradecanoylcarnitine exhibits a characteristic significant elevation in plasma levels in patients with sarcopenia, including those complicated with hypertension, and this elevation is closely associated with an increased risk of death. Tetradecanoylcarnitine is widely used in research on the pathological mechanisms of diseases such as Parkinson's disease and sarcopenia.