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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

Key Documents

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Product Name

N-Methyldiethanolamine, ≥99%

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 %

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

Quality Level

200

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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.

General description

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

pictograms

Exclamation mark
GHS07

signalword

Warning

hcodes

H319

Hazard Classifications

Eye Irrit. 2

Storage Class

10 - Combustible liquids

wgk

WGK 1

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
MKCZ2475
0000425471
0000425471

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Highly stretchable nanoalginate based polyurethane elastomers.
Daemi H, et al.
Carbohydrate Polymers, 95(2), 630-636 (2013)
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-Methyldiethanolamine
Saher HS
eEROS (Encyclopedia of Reagents for Organic Synthesis) (2001)
Wen-Shuai Liu et al.
Chemical biology & drug design, 85(1), 91-97 (2014-09-13)
Five N-methyl-N-R-N,N-bis(2-hydroxyethyl) ammonium bromides (R = -benzyl (chloride, BNQAS), -dodecyl (C12QAS), -tetradecyl (C14QAS), -hexadecyl (C16QAS), -octadecyl (C18QAS)) were prepared based on N-methyldiethanolamine (MDEA) and halohydrocarbon. Five QAS were characterized by FTIR, NMR, and MS. BNQAS, C12QAS, C14QAS, and C16QAS were
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
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