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N,N,N',N'-Tetramethylethylenediamine

CAS No.
110-18-9
Chemical Name:
N,N,N',N'-Tetramethylethylenediamine
Synonyms
TMEDA;TEMED;TETRAMETHYLETHYLENEDIAMINE;N1,N1,N2,N2-tetraMethylethane-1,2-diaMine;TMED;1,4-DIAMINOBUTANE;TD;1,2-BIS(DIMETHYLAMINO)ETHANE;2,5-DiMethyl-2,5-diazahexane;N,N,N',N'-TETRAMETHYLENEDIAMINE
CBNumber:
CB2446761
Molecular Formula:
C6H16N2
Molecular Weight:
116.2
MDL Number:
MFCD00008335
MOL File:
110-18-9.mol
Last updated:2025-09-25 17:15:13
Product description Number Pack Size Price
N,N,N′,N′-Tetramethyl ethylenediamine for synthesis 8.08742 5ml $33.2
N,N,N′,N′-Tetramethyl ethylenediamine for synthesis 8.08742 250ML $57.4
N,N,N′,N′-Tetramethyl ethylenediamine for synthesis 8.08742 1L $184
N,N,N′,N′-Tetramethyl ethylenediamine ≥99.5%, purified by redistillation 411019 1l $443.65
N,N,N′,N′-Tetramethyl ethylenediamine ≥99.5%, purified by redistillation 411019 2l $851.2
More product size

N,N,N',N'-Tetramethylethylenediamine Properties

Melting point −55 °C(lit.)
Boiling point 120-122 °C(lit.)
Density 0.775 g/mL at 20 °C(lit.)
vapor density 4 (vs air)
vapor pressure 21 hPa (20 °C)
refractive index n20/D 1.4179(lit.)
Flash point 50 °F
storage temp. Store below +30°C.
solubility H2O: 10 mg/mL at 20 °C, clear, colorless
pka 10.40, 8.26(at 25℃)
form Liquid
color Clear colorless to slightly yellow
Specific Gravity 0.777 (20/4℃)
Odor Amine like
PH 8.0-8.5 (0.1g/l, H2O, 20℃)
explosive limit 1-9%(V)
Water Solubility miscible
Sensitive Hygroscopic
Merck 14,9134
BRN 1732991
Stability Stable. Highly flammable. Incompatible with strong oxidizing agents, acids, acid chlorides, acid anhydrides, copper, mercury.
InChIKey DMQSHEKGGUOYJS-UHFFFAOYSA-N
LogP -0.13 at 20.2℃
Indirect Additives used in Food Contact Substances N,N,N',N'-TETRAMETHYLETHYLENEDIAMINE
CAS DataBase Reference 110-18-9(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII K90JUB7941
NIST Chemistry Reference 1,2-Ethanediamine, N,N,N',N'-tetramethyl-(110-18-9)
EPA Substance Registry System Tetramethylethylenediamine (110-18-9)
UNSPSC Code 41105319
NACRES NC.01

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictogramsGHS hazard pictogramsGHS hazard pictograms
GHS02,GHS05,GHS06
Signal word  Danger
Hazard statements  H225-H301+H331-H314
Precautionary statements  P210-P233-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338
Hazard Codes  F,C,Xi
Risk Statements  11-20/22-34-20/21/22
Safety Statements  16-26-36/37/39-45
RIDADR  UN 2372 3/PG 2
WGK Germany  1
RTECS  KV7175000
3-8-10-34
Autoignition Temperature 145 °C
Hazard Note  Irritant
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29212900
Hazardous Substances Data 110-18-9(Hazardous Substances Data)
Limited Quantities 1.0 L (0.3 gallon) (liquid)
Excepted Quantities Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)
NFPA 704
3
3 0

N,N,N',N'-Tetramethylethylenediamine price More Price(59)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.08742 N,N,N′,N′-Tetramethyl ethylenediamine for synthesis 110-18-9 5ml $33.2 2025-07-31 Buy
Sigma-Aldrich 8.08742 N,N,N′,N′-Tetramethyl ethylenediamine for synthesis 110-18-9 250ML $57.4 2025-07-31 Buy
Sigma-Aldrich 8.08742 N,N,N′,N′-Tetramethyl ethylenediamine for synthesis 110-18-9 1L $184 2025-07-31 Buy
Sigma-Aldrich 411019 N,N,N′,N′-Tetramethyl ethylenediamine ≥99.5%, purified by redistillation 110-18-9 1l $443.65 2025-07-31 Buy
Sigma-Aldrich 411019 N,N,N′,N′-Tetramethyl ethylenediamine ≥99.5%, purified by redistillation 110-18-9 2l $851.2 2025-07-31 Buy
Product number Packaging Price Buy
8.08742 5ml $33.2 Buy
8.08742 250ML $57.4 Buy
8.08742 1L $184 Buy
411019 1l $443.65 Buy
411019 2l $851.2 Buy

N,N,N',N'-Tetramethylethylenediamine Chemical Properties,Uses,Production

Chemical Properties

Colorless to slightly yellow liquid

Uses

N,N,N',N'-Tetramethylethylenediamine is used as polymerization accelerator in gel electrophoresis, solvent and oxidizing reagent. It is also used for the separation of proteins or nucleic acids. Further, it is employed as a ligand for metal ions like zinc and copper. It is actively involved in the formation of anionic organometallic complex.

Definition

ChEBI: N,N,N',N'-tetramethylethylenediamine is an ethylenediamine derivative in which each nitrogen carries two methyl substituents. It is widely employed both as a ligand for metal ions and as a catalyst in organic polymerisation. It has a role as a chelator and a catalyst.

Application

N,N,N',N'-Tetramethylethylenediamine (TMEDA) is a highly efficient catalyst for the Baylis-Hillman reaction, outperforming the most widely used catalyst DABCO. TMEDA can catalyze the Baylis-Hillman reaction of aromatic aldehydes with various active olefins.[1]

General Description

1,2-di-(dimethylamino)ethane appears as a water-white colored liquid with a fishlike odor. Flash point 68 °F. Less dense than water. Vapors heavier than air. Used to make other chemicals.

Air & Water Reactions

Highly flammable. Slightly soluble in water. Sensitive to heat and may be sensitive to air .

Reactivity Profile

N,N,N',N'-Tetramethylethylenediamine neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides.

Health Hazard

May cause toxic effects if inhaled or absorbed through skin. Inhalation or contact with material may irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.

Fire Hazard

HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.

Safety Profile

Moderately toxic by ingestion. Mddly toxic by slun contact. A skin and severe eye irritant. Flammable when exposed to heat or flame; can react with oxidizing materials. When heated to decomposition it emits toxic fumes of NOx. See also MINES.

Purification Methods

Dry TMEDA partially with molecular sieves (Linde type 4A), then distil it in a vacuum from butyl lithium. This treatment removes all traces of primary and secondary amines and water. [Hay et al. J Chem Soc, Faraday Trans 1 68 1 1972.] Or dry it with KOH pellets, reflux for 2hours with one-sixth its weight of n-butyric anhydride (to remove primary and secondary amines) and fractionally distil it. Reflux it with fresh KOH, and distil it under nitrogen. [Cram & Wilson J Am Chem Soc 85 1245 1963.] It was also distilled from Na. Store it sealed under N2. The dipicrate has m 263o(dec). [Beilstein 4 H 250, 4 I 415, 4 II 690, 4 III 512, 4 IV 1172.]

References

[1] SANHU ZHAO  Zhao bin C. The N,N,N′,N′–Tetramethylethylenediamine Mediated Baylis‐Hillman Reaction[J]. Synthetic Communications, 2005, 35 1: 121-127. DOI:10.1081/SCC-200046521.

124-40-3
74-86-2
110-18-9
Synthesis of N,N,N',N'-Tetramethylethylenediamine from Dimethylamine and Acetylene
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Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
N,N,N',N'-Tetramethylethylenediamine pictures 2025-12-11 N,N,N',N'-Tetramethylethylenediamine
110-18-9
US $10.00 / KG 1KG 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd
N,N,N',N'-Tetramethylethylenediamine pictures 2025-11-26 N,N,N',N'-Tetramethylethylenediamine
110-18-9
US $0.00 / kg 200kg 99% EX:1tons Huizhili (Changzhou) Life Technology Co., Ltd
N,N,N',N'-Tetramethylethylenediamine  pictures 2025-11-18 N,N,N',N'-Tetramethylethylenediamine
110-18-9
US $1.10 / g 1g 99.00% 100 Tons Min Dideu Industries Group Limited
N1,N1,N2,N2-tetraMethylethane-1,2-diaMine N,N,N',N'-Tetramethylethane-1,2-diamine, electrophoresis grade 1,2-EthanediaMine,N1,N1,N2,N2-tetraMethyl- Four MethylEthylenediaMine N,N,N',N'-TetraMethylethylenediaMine >=99.5%, purified by redistillation N,N,N',N'-TetraMethylethylenediaMine ReagentPlus(R), 99% (CH3)2NCH2CH2N(CH3)2 1,2-Diaminoethane, N,N,N',N'-tetramethyl- 1,2-Ethanediamine,N,N,N’,N’-tetramethyl- 2-Ethanediamine,N,N,N’,N’-tetramethyl-1 dimethyl(2-(dimethylamino)ethyl)amine Dimethyl[2-(dimethylamino)ethyl]amine Ethylenediamine, N,N,N',N'-tetramethyl- N,N,N',N'-Tetramethyl-1,2-ethanediamine N,N,N',N'-Tetramethylethanediamine N,N,N',N'-Tetramethylethenediamine N,N,N’,N’-Tetramethyl-1,2-ethanediamine n,n,n’,n’-tetramethyl-2-ethanediamine N,N,N’,N’-Tetramethyl-ethane-1,2-diamine 1,2-Bis(dimethylamino)ethane~TEMED~TMEDA N,N,N,N-TetramethylAV12537 NNNN-Tetramethyl-ethylenediamine 99+ % (GLC) temed electrophoresis TEMED N,N,N,N-Tetramethylethylenediamine TEMED, Molecular Biology Grade N,N,N,N-Tetramethylethylenediamine, Molecular Biology Grade CN,N,N',N'-Tetramethylethylenediamine N,N,N',N'-TETRAMETHYLETHYLENEDIAMINE, AB SOLUTE N,N,N',N'-TETRAMETHYLETHYLENEDIAMINE, RE DISTILLED, 99.5+% TEMED MOLECULAR BIOLOGY REAGENT N,N,N',N'-TETRAMETHYLETHYLENEDIAMINE, FO R MOL. BIOLOGY N,N,N',N'-TETRAMETHYLETHYLENEDIAMINE, FO R ELECTROPHORESIS TEMED ELECTROPHORESIS REAGENT N,N,N',N'-TETRAMETHYLETHYLENEDIAMINE, REAGENTPLUS, 99% N N N' N'-TETRAMETHYLETHYLENEDIAMINE R& N,N,N',N'-Tetramethylethylenediamine>99% 1,2-did(dimethylamino)ethane N,N,N',N'-Tetramethylethylenediamine, extra pure, 99% N,N,N',N'-Tetramethylethylenediamine, For electrophoresis, for biochemistry, 99% N,N,N',N'-Tetramethylethylenediamine,99%TMEDA TMEDA TEMED (N,N,N'',N''-TETRAMETHYLETHYLENDIAMINE) N,N,N′,N′-Tetramethylethylendiamin N,N,N',N'-TETRAMETHYL ETHYLENEDIAMINE pure N,N,N',N'-Tetramethylethylenediamine, 99%, extra pure Temed(N,N,NTetramethylethyleneDiamene) N,N,N',N'-Tetramethylethylenediamine,99%,forbiochemistry,For electrophoresis N,N,N',N'-Tetramethylethylenediamine Vetec(TM) reagent grade, >=99% AZINPHOS METHYL NEAT N,N,N′,N′-Tetramethylethylenediamine(TEMED、TMEDA) N,N,N'',N''-TETRAMETHYLETHYLENEDIAMI N,N,N1,N1-Tetramethylethylenediamine n,n,ni,ni-tetramethylethylenediamine Propamine D propamined Tetrameen Tetramethyldiaminoethane BIS(DIMETHYLAMINO)ETHANE 1,2-BIS(DIMETHYLAMINO)ETHANE