Basic information
- Standard SMILES
C[N+](C)(C)CCO- InChIKey
OEYIOHPDSNJKLS-UHFFFAOYSA-N- Molecular formula
- C5H14NO+
- Average molar mass
- 104.17 g/mol
- Monoisotopic mass
- 104.10699049
Overview
Choline is a choline that is the parent compound of the cholines class, consisting of ethanolamine having three methyl substituents attached to the amino function. It has a role as a neurotransmitter, a nutrient, an allergen, a mouse metabolite, a Saccharomyces cerevisiae metabolite, a plant metabolite, an Escherichia coli metabolite, a human metabolite and a Daphnia magna metabolite.
Names & identifiers
- Preferred name
- Choline
- IUPAC
- 2-hydroxyethyl(trimethyl)azanium
- English name
- CHOLINE
- Molecular formula
- C5H14NO
- Molecular weight
- 104.17
Names & synonyms
Show more names
Database identifiers
- CAS
139741-81-4、5413-08-1、62-49-7- PubChem CID
- 305
- DTXSID
DTXSID8043789- ChEMBL
CHEMBL920- ChEBI
CHEBI:15354- UNII
- N91BDP6H0X
- EC Number
- 200-535-1
- Nikkaji
- J4.822D
Properties
Computed structural properties
- XLogP
- -0.4
- Topological polar surface area
- 20.2 Ų
- Hydrogen bond donors
- 1
- Hydrogen bond acceptors
- 1
- Rotatable bonds
- 2
- Heavy atoms
- 7
- Formal charge
- 1
- Complexity
- 46.5
Experimental & physicochemical properties
Drugs
Pharmaceuticals -> Brochodilators
Pharmaceuticals
Pharmaceuticals -> Listed in ZINC15
Melting Point
244-247 °C (as chloride salt)
302 - 303 °C (chloride salt)
Physical Description
50% Aqueous solution: Dark brown cloudy liquid; [Sigma-Aldrich MSDS]
Solid
Collision Cross Section
117.7 Ų [M+H]+ [CCS Type: DT; Buffer gas: N2; Ionization: ESI+; Dataset: TOXCAST; Source Identifier: DTXSID9047467]
117.6 Ų [M+H]+ [CCS Type: DT; Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)]
117.8 Ų [M+H]+ [CCS Type: DT; Method: single field calibrated with Agilent tune mix (Agilent)]
119 Ų [M]+ [CCS Type: DT; Method: stepped-field]
117 Ų [M]+ [CCS Type: TW; Method: calibrated with polyalanine]
117.4 Ų [M+H]+
Physicochemical properties
- Melting point
- 232 · 232-233 °C (decomp)
- Boiling point
- 195.35 °C · 195.35°C (rough estimate)
- Density
- 1.09 g/mL · 1.09 g/mL at 20 °C
- refractive index
- 20 · n20/D 1.418
- storage temp.
- 2 · 2-8°C
- solubility
- 2 H5)2O, · Easily soluble (water), soluble (ethanol), slightly soluble (amyl alcohol), insoluble ((C2H5)2O, CHCl3)
- pka
- 13.9 · 13.9(at 25℃)
- CAS DataBase Reference
- 62 · 62-49-7(CAS DataBase Reference)
- FDA 21 CFR
- 101.9 · 101.9; 107.10; 310.545
- EWG's Food Scores
- 1 · 1-3
- NCI Dictionary of Cancer Terms
- choline
- FDA UNII
- 91 BDP6H0X · N91BDP6H0X
- EPA Substance Registry System
- Choline (62-49-7)
- Symbol(GHS)
- 2 · GHS02,GHS08,GHS05
- Signal word
- Danger
- Hazard statements
- 370 · H370-H225-H314-H360
- Precautionary statements
- 260 · P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501-P260-P264-P270-P307+P311-P321-P405-P501-P210-P233-P240-P241-P242-P243-P280-P303+P361+P353-P370+P378-P403+P235-P501
- Hazard Codes
- C
- Risk Statements
- 34 · 34
- Safety Statements
- 26 · 26-36/37/39-45
- RIDADR
- 3286 · UN 3286 3/PG 2
- WGK Germany
- 1 · 1
- F
- 8 · 8-9-23
- TSCA
- TSCA listed
- HazardClass
- 8 · 8
- PackingGroup
- II
- REACH Registrations
- Active
Safety & regulation
GHS classification
GHS Classification
This chemical does not meet GHS hazard criteria for 1.3% (2 of 149) of reports.
Danger
H225 (70.5%): Highly Flammable liquid and vapor [Danger Flammable liquids]
P203, P210, P233, P240, P241, P242, P243, P260, P264, P264+P265, P270, P280, P301+P330+P331, P302+P361+P354, P303+P361+P353, P304+P340, P305+P354+P338, P308+P316, P316, P317, P318, P321, P363, P370+P378, P403+P235, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 149 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
Chemical: Ethanaminium, 2-hydroxy-N,N,N-trimethyl-
Regulation (EC) No 178/2002 (amended)
Status: Active Update: 25-05-2018 https://echa.europa.eu/registration-dossier/-/registered-dossier/25288
Ethanaminium, 2-hydroxy-N,N,N-trimethyl-: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
Toxicology
Safety data
- F
- 8-9-23
- wgk
- 1
- tsca
- TSCA listed
- ridadr
- UN 3286 3/PG 2
- risk_code
- 34
- Signal word
- Danger
- Symbol(GHS)
- GHS02,GHS08,GHS05
- hazard_code
- C
- safety_code
- 26-36/37/39-45
- hazard_class
- 8
- packing_group
- II
- Hazard statements
- H370-H225-H314-H360
- REACH Registrations
- Active
- Precautionary statements
- P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501-P260-P264-P270-P307+P311-P321-P405-P501-P210-P233-P240-P241-P242-P243-P280-P303+P361+P353-P370+P378-P403+P235-P501
Chemistry & industry
Pharmacology
Pharmacodynamics
This compound is needed for good nerve conduction throughout the CNS (central nervous system) as it is a precursor to acetylcholine (ACh). Choline is also needed for gallbladder regulation, liver function and lecithin (a key lipid) formation. Choline also aids in fat and cholesterol metabolism and prevents excessive fat build up in the liver. Choline has been used to mitigate the effects of Parkinsonism and tardive dyskinesia. Choline deficiencies may result in excessive build-up of fat in the liver, high blood pressure, gastric ulcers, kidney and liver dysfunction and stunted growth.
Mechanism of Action
Choline is a major part of the polar head group of phosphatidylcholine. Phosphatidylcholine's role in the maintenance of cell membrane integrity is vital to all of the basic biological processes: information flow, intracellular communication and bioenergetics. Inadequate choline intake would negatively affect all these processes. Choline is also a major part of another membrane phospholipid, sphingomyelin, also important for the maintenance of cell structure and function. It is noteworthy and not surprising that choline deficiency in cell culture causes apoptosis or programmed cell death. This appears to be due to abnormalities in cell membrane phosphatidylcholine content and an increase in ceramide, a precursor, as well as a metabolite, of sphingomyelin. Ceramide accumulation, which is caused by choline deficiency, appears to activate Caspase, a type of enzyme that mediates apoptosis. Betaine or trimethylglycine is derived from choline via an oxidation reaction. Betaine is one of the factors that maintains low levels of homocysteine by resynthesizing L-methionine from homocysteine. Elevated homocysteine levels are a significant risk factor for atherosclerosis, as well as other cardiovascular and neurological disorders. Acetylcholine is one of the major neurotransmitters and requires choline for its synthesis. Adequate acetylcholine levels in the brain are believed to be protective against certain types of dementia, including Alzheimer's disease.
MeSH Pharmacological Classification
Endogenous factors or drugs that increase the transport and metabolism of LIPIDS including the synthesis of LIPOPROTEINS by the LIVER and their uptake by extrahepatic tissues.
Drugs used to specifically facilitate learning or memory, particularly to prevent the cognitive deficits associated with dementias. These drugs act by a variety of mechanisms.
Uses & manufacturing
Uses
An essential nutrient in plants and animals for biosynthesis of cell membrane components (phospholipids); Found in eggs, meats, peanuts, and wheat germ; Used as a nutrient, dietary supplement, and ionic liquid solvent; [Merck Index]
Use (kg; approx.) in Germany (2009): >750
Applications
UsesCholine is a substance grouped as a member of the vitamin b complex, although not a vitamin by definition. it is water soluble and is important in nerve function and fat metabolism. it occurs in egg yolk, beef liver, and grains.
Upstream & downstream products
Upstream raw materials
Downstream products
Suppliers46 total
Additional notes
DefinitionChEBI: A choline that is the parent compound of the cholines class, consisting of ethanolamine having three methyl substituents attached to the amino function.
Related reactions
Linked notes
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