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Merck
CN

134236

Morpholine

≥99%, liquid, ReagentPlus®

Synonym(s):

Tetrahydro-1,4-oxazine

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About This Item

Empirical Formula (Hill Notation):
C4H9NO
CAS Number:
110-91-8
Molecular Weight:
87.12
EC Number:
203-815-1
NACRES:
NA.21
PubChem Substance ID:
24848140
eCl@ss:
39162409
UNSPSC Code:
12352100
MDL number:
MFCD00005972
Beilstein/REAXYS Number:
102549

Key Documents

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Product Name

Morpholine, ReagentPlus®, ≥99%

InChI key

YNAVUWVOSKDBBP-UHFFFAOYSA-N

InChI

1S/C4H9NO/c1-3-6-4-2-5-1/h5H,1-4H2

SMILES string

C1COCCN1

vapor density

3 (vs air)

vapor pressure

31 mmHg ( 38 °C)
7 mmHg ( 20 °C)

product line

ReagentPlus®

assay

≥99%

form

liquid

autoignition temp.

590 °F

expl. lim.

10.8 %

refractive index

n20/D 1.454 (lit.)

bp

129 °C (lit.)

mp

−7-−5 °C (lit.)

density

0.996 g/mL at 25 °C (lit.)

functional group

ether

Quality Level

200

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Application

Morpholine can be used as a buffer component in the separation of peptides and pathogenic lipopolysaccharides during on-line chromatographic preconcentration coupled to capillary zone electrophoresis–electrospray mass spectrometry (cPC–CZE–ES-MS) analysis from colony isolates.

General description

Morpholine can be obtained, via degradation of N-methylmorpholine N-oxide (NMMO) during fiber production.

Morpholine is a cyclic amine that serves as a solvent, corrosion inhibitor, and chemical intermediate.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Repr. 2 - Skin Corr. 1B

Storage Class

3 - Flammable liquids

wgk

WGK 1

flash_point_f

87.8 °F - closed cup

flash_point_c

31 °C - closed cup

ppe

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

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
MKCT3348
STBK6914
STBK6296
STBK8032
MKCR7420

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Flow injection analysis with amperometric detection for morpholine determination in corrosion inhibitors
Oliveira SMD, et al.
Journal of the Brazilian Chemical Society, 25, 1399-1406 (2014)
"Determination of morpholine and N-methylmorpholine formed as degradation products in cellulose fiber production by capillary isotachophoresis"
Widhalm A and Kenndler E
Analytical Chemistry, 63(06), 645-648 (1991)
"Development of an on-line preconcentration method for the analysis of pathogenic lipopolysaccharides using capillary electrophoresis?electrospray mass spectrometry: Application to small colony isolates1NRCC No.: 39585.1"
Li.J, et al.
Journal of Chromatography A, 817(01), 325-336 (1998)
M H Jayan S Karunarathna et al.
Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology, 20(2), 255-263 (2021-03-16)
The photochemistry of Fe(III) coordinated to natural uronate-containing polysaccharides has been investigated quantitatively in aqueous solution. It is demonstrated that the photoreduction of the coordinated Fe(III) to Fe(II) and oxidative decarboxylation occurs in a variety of uronate-containing polysaccharides. The photochemistry
Nickel-catalyzed amination of aryl sulfamates.
Stephen D Ramgren et al.
Angewandte Chemie (International ed. in English), 50(9), 2171-2173 (2011-02-24)
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