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Merck
CN

471828

N-Methyldiethanolamine

≥99%

Synonym(s):

2,2′-Methyliminodiethanol, N,N-Bis(2-hydroxyethyl)methylamine, MDEA

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About This Item

Linear Formula:
CH3N(CH2CH2OH)2
CAS Number:
105-59-9
Molecular Weight:
119.16
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
24870762
EC Number:
203-312-7
Beilstein/REAXYS Number:
1734441
MDL number:
MFCD00002848
Assay:
≥99%

Key Documents

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InChI key

CRVGTESFCCXCTH-UHFFFAOYSA-N

InChI

1S/C5H13NO2/c1-6(2-4-7)3-5-8/h7-8H,2-5H2,1H3

SMILES string

CN(CCO)CCO

vapor density

4 (vs air)

vapor pressure

0.01 mmHg ( 20 °C)

assay

≥99%

autoignition temp.

770 °F

expl. lim.

99 %, 55 °F, ~56 %, 23 °F, ~8.8 %

Quality Level

200

refractive index

n20/D 1.469 (lit.)

bp

246-248 °C (lit.)

density

1.038 g/mL at 25 °C (lit.)

functional group

amine, hydroxyl

Related Categories

General description

N-Methyldiethanolamine is a tertiary amine utilized in boronate ester formation and nucleophilic substitutions.

Application

N-Methyldiethanolamine (MDEA) may be employed in the following studies:
  • Synthesis of aluminophosphate-based molecular sieves.
  • Preparation of N-methyl-N-R-N,N-bis(2-hydroxyethyl) ammonium bromides.
  • Preparation of cationic polyurethane dispersions.

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H319

Hazard Classifications

Eye Irrit. 2

Storage Class

10 - Combustible liquids

flash_point_f

260.6 °F - closed cup

flash_point_c

127 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Information

监管及禁止进口产品
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Certificates of Analysis (COA)

Lot/Batch Number
0000511241
0000511241
MKDB1298
MKCZ2475
0000425471

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Highly stretchable nanoalginate based polyurethane elastomers.
Daemi H, et al.
Carbohydrate Polymers, 95(2), 630-636 (2013)
N-Methyldiethanolamine
Saher HS
eEROS (Encyclopedia of Reagents for Organic Synthesis) (2001)
Dehua Wang et al.
Journal of colloid and interface science, 445, 119-126 (2015-01-24)
In the present study, N-methyldiethanolamine (MDEA) is demonstrated to be a multifunctional structure-directing agent for the synthesis of aluminophosphate-based molecular sieves. Four types of molecular sieves, including SAPO-34, -35, AlPO-9 and -22, are for the first time acquired with MDEA
N Bord et al.
Analytical and bioanalytical chemistry, 380(2), 325-332 (2004-09-01)
Alkanolamines such as diethanolamine (DEA) and N-methyldiethanolamine (MDEA) are used in desulfurization processes in crude oil refineries. These compounds may be found in process waters following an accidental contamination. The analysis of alkanolamines in refinery process waters is very difficult
Jacob D McDonald et al.
Environmental science & technology, 48(18), 10821-10828 (2014-08-29)
Carbon dioxide (CO2) absorption with aqueous amine solvents is a method of carbon capture and sequestration (CCS) from flue gases. One concern is the possible release of amine solvents and degradation products into the atmosphere, warranting evaluation of potential pulmonary
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