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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

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
MKDB1298
0000511241
0000511241
MKCZ2475
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
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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