Choline chloride (Biocoline) is a basic constituent of lecithin that is found in many plants and animal organs. It is important as a precursor of acetylcholine, as a methyl donor in various metabolic processes, and in lipid metabolism.

sn-Glycero-3-phosphocholine (Choline glycerophosphate) is a natural choline compound found in the brain and in milk. It is also a parasympathomimetic acetylcholine precursor which may have a potential for the treatment of Alzheimer's disease and dementia. sn-Glycero-3-phosphocholine rapidly delivers choline to the brain across the blood–brain barrier and is a biosynthetic precursor of the acetylcholine neurotransmitter. It is a non-prescription drug in most countries due to its Generally Recognised As Safe (GRAS) status [1]. Studies have investigated its efficacy for cognitive disorders including stroke and Alzheimer's disease. An Italian multicentre clinical trial on 2, 044 patients suffering from recent stroke were supplied Glycerylphosphorylcholine in doses of 1, 000 mg/day for 28 days and 400 mg three times per day for the five ensuing months. The trial confirmed the therapeutic role of alpha-GPC on the cognitive recovery of patients based on four measurement scales, three of which reached statistical significance [2].

Choline bitartrate (2-hydroxyethyl(trimethyl)azanium) is a form of the nutrient choline which is found in foods. Choline is necessary for normal liver and kidney function and a component of the neurotransmitter acetylcholine, a chemical that facilitates communication between the nerves and muscles.

Citicoline (CDP-Choline) is an intermediate in the synthesis of phosphatidylcholine, a component of cell membranes. Citicoline exerts neuroprotective effects.

4-Hydroxybenzoyl choline is a natural product for research related to life sciences. The catalog number is TN6602 and the CAS number is 5094-31-5.

1-Palmitoyl-sn-glycero-3-phosphocholine (1-Hexadecanoyl-sn-glycero-3-phosphocholine) is a phosphocholine for fluorescent probe design

1,2-dioleoyl-sn-glycero-3-phosphocholine (DOPC) is a phospholipid containing the unsaturated long-chain (18:1) oleic acid inserted at the sn-1 and sn-2 positions.

Phosphatidylcholines,soya (Soybean phosphatidylcholine) is a phosphatidylcholine from soybean used in the preparation of liposomes.

Citicoline sodium (CDP-choline) is an endogenous intermediate in the synthesis of phosphatidylcholine. It also serves as a choline donor in the biosynthesis of the neurotransmitter acetylcholine. Citicoline sodium demonstrates protective effects in cerebral ischemia, traumatic brain injury, and memory disorders. Exogenous administration of citicoline to rodents (500 mg/kg i.p. immediately after ischemia and at 3-h reperfusion) has been shown to stimulate the synthesis of phosphatidylcholine, sphingomyelin, and cardiolipin and to attenuate the release of arachidonic acid and the accumulation of ceramide.

Acetylcholine Chloride is the chloride salt form of acetylcholine, a synthetic, quaternary amino alcohol with cholinergic properties. Acetylcholine chloride (Pilofrin) mimics the parasympathomimetic effect of the endogenous compound acetylcholine. Administered as an ophthalmic solution, this drug stimulates the cholinoceptors in the sphincter muscle of the iris, causing the pupil to constrict.

Polygalacic acid (Virgaureagenin G)(PA) significantly improves cholinergic system reactivity, as indicated by decreased acetylcholinesterase (AChE) activity, increases choline acetyltransferase (ChAT) activity, and elevates levels of acetylcholine (ACh) in the hippocampus and frontal cortex, PA also significantly ameliorates neuroinflammation and oxidative stress in mice; suggest that PA might exert a significant neuroprotective effect on cognitive impairment, driven in part by the modulation of cholinergic activity and neuroinflammation. Polygalacic acid shows significant postingestive effects on Spodoptera littoralis larvae.

Bilobalide ((-)-Bilobalide), a bioactive from Gingko Biloba, is active on hypoxia-induced alterations.

Hydrogenated soya phosphatidylcholines, a natural compound, enhances the controlled release of water-soluble drugs in oral drug delivery systems by improving drug loading and solubility [1].

1-Linoleoyl-2-hydroxy-sn-glycero-3-PC (LGPC) is a lysophospholipid containing linoleic acid at thesn-1 position that has been found in mouse heart, lung, liver, spleen, kidney, plasma, and serum.1Serum levels of LGPC decrease with increasing insulin resistance and dysglycemia in humans.2 1.Okudaira, M., Inoue, A., Shuto, A., et al.Separation and quantification of 2-acyl-1-lysophospholipids and 1-acyl-2-lysophospholipids in biological samples by LC-MS/MSJ. Lipid Res.55(10)2178-2192(2014) 2.Gall, W.E., Beebe, K., Lawton, K.A., et al.α-Hydroxybutyrate is an early biomarker of insulin resistance and glucose intolerance in a nondiabetic populationPLoS One5(5)e10883(2010)

Palmitoyldocosahexaenoyl phosphatidylcholine, an endogenous metabolite.

Phosphorylcholine chloride calcium salt tetrahydrate (Phosphocholine chloride calcium salt tet) is a small haptenic molecule, is found in a wide variety of organisms. Human hepatic tumors undergo an elevation in the concentration of phosphorylcholine as the principal metabolic change is observed (PMID: 11076016 ). Phosphorylcholine chloride calcium salt tetrahydrate is the precursor metabolite of choline in the glycine, serine and threonine metabolism pathways (KEGG, map00260) and in intermediate between choline and cytidine-diphosphate choline in the glycerophospholipid metabolism pathway (KEGG, map00564).

Phosphorylcholine is widely present in the biological world, which is a phospholipid present in the eukaryotic biofilm, and also in the symbiotic bacteria or pathogens associated with eukaryotes. Phosphorylcholine has immunomodulatory properties and can be used to study atherosclerosis.

1,2-Dimyristoyl-sn-glycero-3-phosphocholine (DMPC) (DMPC) is a synthetic phospholipid used in liposomes which is used for the study of lipid monolayers and bilayers[1].

1-Stearoyl-sn-glycero-3-phosphocholine (L-ALPHA-LYSOPHOSPHATIDYLCHOLINE, STEAROY) is a chemical used in lipid metabolism studies

1,2-Distearoyl-sn-glycero-3-phosphorylcholine (L-ALPHA-PHOSPHATIDYLCHOLINE, DISTEAROYL) is a cylindrical-shaped lipid used to synthesize liposomes. 1,2-Distearoyl-sn-glycero-3-phosphorylcholine (L-ALPHA-PHOSPHATIDYLCHOLINE, DISTEAROYL) is the lipid component in the lipid nanoparticle (LNP) system.

Acetylcholine iodide (Acetylcolina) is a neurotransmitter found at neuromuscular junctions, autonomic ganglia, parasympathetic effector junctions, a subset of sympathetic effector junctions, and at many sites in the central nervous system.

1-Oleoyl-sn-glycero-3-phosphocholine is a reference for the analysis of lysolecithins

1-Arachidoyl-sn-glycero-3-phosphocholine is a lysophospholipid (LyP).

Trimethylamine N-oxide dihydrate (TMANO Dihydrate), a product of the oxidation of trimethylamine, is considered as a protein stabilizer that may serve to counteract urea, the major osmolyte of sharks, skates and rays.

Sinapine Thiocyanate, is a derivative of Sinapine (S486605), an alkaloidal amine found in black mustard seeds. It is the choline ester of Sinapic Acid (S486800). It is also a phenolic-chloine conjugates, acting as anti-oxidants and acetylcholinesterase inhibitors, that can be used for the treatment of Alzheimer's disease (AD).

Trimethylamine N-oxide (TMAO) is a colorless amine oxide produced from choline, betaine, and carnitine via intestinal microbial metabolism that accumulates in tissues of marine animals and prevents the protein-damaging effects of urea.Trimethylamine N-oxide induces inflammation through activation of ROS/NLRP3 inflammasomes, which can induce fibroblast differentiation and cardiac fibrosis.

Nervonic acid (Selacholeic acid) is a long chain unsaturated fatty acid that is enriched in sphingomyelin. It consists of choline, sphingosine, phosphoric acid, and fatty acid. Nervonic acid may enhance the brain functions and prevent demyelination (Chemical Land21). Research shows that there is negative relationship between nervonic acid and obesity-related risk factors. Demyelination in adrenoleukodystrophy (ALD) is associated with an accumulation of very long chain saturated fatty acids stemming from a genetic defect in the peroxisomal beta oxidation system responsible for the chain shortening of these fatty acids. Sphingolipids from post mortem ALD brain have decreased levels of nervonic acid, 24:1(n-9), and increased levels of stearic acid, 18:0.

Americanol A enhances choline acetyltransferase activity; has neurotrophic properties.

Cyanocobalamin is a cobalt-containing coordination compound generated by intestinal microbes and a natural water-soluble vitamin of the B-complex family that must combine with Intrinsic Factor for absorption by the intestine. Cyanocobalamin is necessary for hematopoiesis, neural metabolism, DNA, and RNA production, and carbohydrate, fat, and protein metabolism. B12 improves iron functions in the metabolic cycle and assists folic acid in choline synthesis. B12 metabolism is interconnected with that of folic acid. Vitamin B12 (Cobalamin) deficiency causes pernicious anemia, megaloblastic anemia, and neurologic lesions.