Record Information
Creation date2010-04-08 22:10:15 UTC
Update date2018-05-28 23:38:01 UTC
Primary IDFDB012589
Secondary Accession NumbersNot Available
Chemical Information
FooDB NameDimethylamine
DescriptionAminating agent in the manuf. of ion-exchange resins for food processing Dimethylamine (DMA) is an organic secondary amine. It is a colorless, liquefied and flammable gas with an ammonia and fish-like odor. Dimethylamine is abundantly present in human urine. Main sources of urinary DMA 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 DMA by dimethylarginine dimethylaminohydrolase (DDAH). Statistically significant increases in urinary DMA have been found in individuals after the consumption of fish and seafoods. The highest values were obtained for individuals that consumed coley, squid and whiting with cod, haddock, sardine, skate and swordfish (PMID: 18282650). As a pure chemical substance Dimethylamine is used as dehairing agent in tanning, in dyes, in rubber accelerators, in soaps and cleaning compounds and as an agricultural fungicide. In the body, DMA also undergoes nitrosation under weak acid conditions to give dimethlynitrosamine.; Dimethylamine is a precursor to several industrially significant compounds. It reacts with carbon disulfide to give dimethyldithiocarbamate, a precursor to a family of chemicals widely used in the vulcanization of rubber. The solvents dimethylformamide and dimethylacetamide are derived from dimethylamine. It is raw material for the production of many agrichemicals and pharmaceuticals, such as dimefox and diphenhydramine, respectively. The chemical weapon tabun is derived from dimethylamine. The surfactant lauryl dimethylamine oxide is found in soaps and cleaning compounds. Unsymmetrical dimethylhydrazine, a rocket fuel, is prepared from dimethylamine.; Dimethylamine is an organic compound with the formula (CH3)2NH. This secondary amine is a colorless, flammable liquified gas with an ammonia- or fish-like odor. Dimethylamine is generally encountered as a solution in water at concentrations up to around 40%. In 2005, an estimated 270,000 tons were produced.; The molecule consists of a nitrogen atom with two methyl substituents and one proton. Dimethylamine is a base and the pKa of the ammonium salt CH3-NH2+-CH3 is 10.73, a value above methylamine (10.64) and trimethylamine (9.79). Dimethylamine reacts with acids to form salts, such as dimethylamine hydrochloride, an odorless white solid with a melting point of 171.5 °C. Dimethylamine is produced by catalytic reaction of methanol and ammonia at elevated temperatures and high pressure:.
CAS Number124-40-3
Dimethylamine anhydrousHMDB
Dimethylamine anhydrous (dot)HMDB
Dimethylamine aqueous solutionHMDB
Dimethylamine hydrobromideHMDB
Dimethylamine solutionHMDB
N-Methylmethanamine (acd/name 4.0)HMDB
Dimethylamine nitrateHMDB
Dimethylamine perchlorateHMDB
Dimethylamine sulfateHMDB
Dimethylamine hydrochlorideHMDB
Dimethylamine phosphate (3:1)HMDB
Dimethylamine, conjugate acidHMDB
Dimethylammonium chlorideHMDB
Dimethylamine sulfate (1:1)HMDB
Dimethylammonium formateHMDB
Dimethylamine monosulfateHMDB
Dimethylamine (anhydrous)biospider
Dimethylamine, anhydrous [UN1032] [Flammable gas]biospider
Dimethylammonium bromidebiospider
Methanamine, n-methyl-biospider
Methanamine, n-methyl-, hydrobromidebiospider
N-Methylmethanamine, 9CIdb_source
Predicted Properties
Water Solubility516 g/LALOGPS
pKa (Strongest Basic)10.52ChemAxon
Physiological Charge1ChemAxon
Hydrogen Acceptor Count1ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area12.03 ŲChemAxon
Rotatable Bond Count0ChemAxon
Refractivity14.69 m³·mol⁻¹ChemAxon
Polarizability5.75 ųChemAxon
Number of Rings0ChemAxon
Rule of FiveYesChemAxon
Ghose FilterYesChemAxon
Veber's RuleYesChemAxon
MDDR-like RuleYesChemAxon
Chemical FormulaC2H7N
IUPAC namedimethylamine
InChI IdentifierInChI=1S/C2H7N/c1-3-2/h3H,1-2H3
Average Molecular Weight45.0837
Monoisotopic Molecular Weight45.057849229
Description belongs to the class of organic compounds known as dialkylamines. These are organic compounds containing a dialkylamine group, characterized by two alkyl groups bonded to the amino nitrogen.
KingdomOrganic compounds
Super ClassOrganic nitrogen compounds
ClassOrganonitrogen compounds
Sub ClassAmines
Direct ParentDialkylamines
Alternative Parents
  • Secondary aliphatic amine
  • Organopnictogen compound
  • Hydrocarbon derivative
  • Aliphatic acyclic compound
Molecular FrameworkAliphatic acyclic compounds
External Descriptors
Physico-Chemical Properties - Experimental
Physico-Chemical Properties - Experimental
Physical stateLiquid
Physical DescriptionNot Available
Mass CompositionC 53.28%; H 15.65%; N 31.07%DFC
Melting PointMp -96°DFC
Boiling PointBp 7°DFC
Experimental Water Solubility1630 mg/mL at 40 oCSCHWEIZER,AE et al. (1978)
Experimental logP-0.38HANSCH,C ET AL. (1995)
Experimental pKapKa 3.28 (25°)DFC
Isoelectric pointNot Available
ChargeNot Available
Optical RotationNot Available
Spectroscopic UV DataNot Available
Densityd04 0.68DFC
Refractive IndexNot Available
Spectrum TypeDescriptionSplash Key
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-0006-9000000000-cfb8e10b3b28eba99793View in MoNA
GC-MSGC-MS Spectrum - EI-B (Non-derivatized)splash10-0006-9000000000-cfb8e10b3b28eba99793View in MoNA
Predicted GC-MSPredicted GC-MS Spectrum - GC-MS (Non-derivatized) - 70eV, Positivesplash10-0002-9000000000-398c710ba4ea34342a91View in MoNA
LC-MS/MSLC-MS/MS Spectrum - EI-B (HITACHI M-80B) , Positivesplash10-0006-9000000000-8b085007dc085a460422View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 10V, Positivesplash10-0002-9000000000-103f1d373ec0d015b807View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 20V, Positivesplash10-0002-9000000000-df28f146170e28bfcb5eView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 30V, Positivesplash10-0002-9000000000-cd82fdde4d83a74d83f1View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 40V, Positivesplash10-00wc-9100000000-aeb1521c62f5010e11aaView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ (API3000, Applied Biosystems) 50V, Positivesplash10-017i-9101000000-c269a0887eed5daf0e28View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-0002-9000000000-103f1d373ec0d015b807View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-0002-9000000000-df28f146170e28bfcb5eView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-0002-9000000000-17646ed4f7c44ba14045View in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-00wc-9100000000-aeb1521c62f5010e11aaView in MoNA
LC-MS/MSLC-MS/MS Spectrum - LC-ESI-QQ , positivesplash10-017i-9101000000-c269a0887eed5daf0e28View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-0006-9000000000-32c57cc32d61a2feae23View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-0006-9000000000-36fe99d2cc96e560f509View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0006-9000000000-8914e111239eacc36328View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-0002-9000000000-933c4b104db02265ac4aView in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-0002-9000000000-e85cf853d2e7110d18c1View in MoNA
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-014j-9000000000-2032c41c4ca525ff4e1cView in MoNA
MSMass Spectrum (Electron Ionization)splash10-0006-9000000000-8ae4e0d1cb5c91c730c0View in MoNA
1D NMR1H NMR SpectrumNot AvailableView in JSpectraViewer
1D NMR13C NMR SpectrumNot AvailableView in JSpectraViewer
2D NMR[1H,13C] 2D NMR SpectrumNot AvailableView in JSpectraViewer
ChemSpider ID654
KEGG Compound IDC00543
Pubchem Compound ID674
Pubchem Substance IDNot Available
ChEBI ID17170
Phenol-Explorer IDNot Available
DrugBank IDNot Available
CRC / DFC (Dictionary of Food Compounds) IDHJD48-Q:HJD48-Q
BIGG IDNot Available
KNApSAcK IDNot Available
Flavornet IDNot Available
GoodScent IDNot Available
SuperScent IDNot Available
Wikipedia IDDimethylamine
Phenol-Explorer Metabolite IDNot Available
Duplicate IDSNot Available
Old DFC IDSNot Available
Associated Foods
FoodContent Range AverageReference
Biological Effects and Interactions
Health Effects / Bioactivities
pesticide25944 Strictly, a substance intended to kill pests. In common usage, any substance used for controlling, preventing, or destroying animal, microbiological or plant pests.DUKE
NameGene NameUniProt ID
N(G),N(G)-dimethylarginine dimethylaminohydrolase 2DDAH2O95865
PathwaysNot Available
MetabolismNot Available
BiosynthesisNot Available
Organoleptic Properties
FlavoursNot Available
Synthesis ReferenceNot Available
General ReferenceNot Available
Content Reference— Duke, James. 'Dr. Duke's Phytochemical and Ethnobotanical Databases. United States Department of Agriculture.' Agricultural Research Service, Accessed April 27 (2004).