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Morpholine

An ether, C4H9NO, 87.122 g/mol. Boiling point 128 °C, melting point -4.8 °C, as published. Appears in 19 documented reactions.

verified record, Organic — ether, 7 measured properties, 19 documented reactions

Identifiers

Molecular formula
C₄H₉NO
Molecular weight
87.122 g/mol
Exact mass
87.068414 g/mol
IUPAC name
morpholine
SMILES
C1COCCN1
InChI
InChI=1S/C4H9NO/c1-3-6-4-2-5-1/h5H,1-4H2
InChIKey
YNAVUWVOSKDBBP-UHFFFAOYSA-N

Measured properties

Published measurements, each with its source. Two readings of one property are both shown, in the units each used.

Boiling Point
264 °F at 760 mmHg (NTP, 1992)measured · CAMEO Chemicals
128 °Cmeasured · Hazardous Substances Data Bank (HSDB)
Melting Point
23.2 °F (NTP, 1992)measured · CAMEO Chemicals
-4.8 °Cmeasured · Hazardous Substances Data Bank (HSDB)
Density
1 at 68 °F (USCG, 1999)measured · CAMEO Chemicals
1.007 at 20 °C/4 °Cmeasured · Hazardous Substances Data Bank (HSDB)
Solubility
Soluble (NTP, 1992)measured · CAMEO Chemicals
Solluble in organic solventsmeasured · Hazardous Substances Data Bank (HSDB)
Vapor Pressure
6.6 mmHg at 68 °F (NTP, 1992)measured · CAMEO Chemicals
10.1 [mmHg]measured · Haz-Map, Information on Hazardous Chemicals and Occupational Diseases
LogP
log Kow = -0.86measured · Hazardous Substances Data Bank (HSDB)
-0.86measured · Human Metabolome Database (HMDB)
Flash Point
100 °F (NTP, 1992)measured · CAMEO Chemicals
38 °Cmeasured · Haz-Map, Information on Hazardous Chemicals and Occupational Diseases

Calculated properties

Derived from the structure, not from a sample; kept apart from the measurements above.

Molecular weight
87.12 g/molcalculated · reference compound database
Average mass of one molecule, from reference compound database.
Exact mass
87.068413911 Dacalculated · reference compound database
Mass of the most common isotopic form.
XLogP3
-0.9calculated · reference compound database
Estimated oil/water partition, computed by reference compound database.
Polar surface area
21.3 Ųcalculated · reference compound database
Polar surface area as computed by reference compound database.
Complexity
34calculated · reference compound database
A rough measure of how intricate the structure is.
H-bond donors
1calculated · reference compound database
H-bond acceptors
2calculated · reference compound database
logP
-0.3938calculated · chemistry engine
Estimated preference for oil over water. Higher means more oil-like.
Topological polar surface area
21.26 Ųcalculated · chemistry engine
Surface area from polar atoms; relates to how easily a molecule crosses membranes.
H-bond donors
1calculated · chemistry engine
Atoms that can donate a hydrogen bond.
H-bond acceptors
2calculated · chemistry engine
Atoms that can accept a hydrogen bond.
Rotatable bonds
0calculated · chemistry engine
Single bonds the molecule can freely twist around.
Molar refractivity
23.6887 cm³/molcalculated · chemistry engine
Relates to the molecule's polarisability.
Fraction sp³ carbons
1calculated · chemistry engine
Share of carbon atoms with tetrahedral bonding.
QED drug-likeness
0.4341calculated · chemistry engine
Quantitative estimate of drug-likeness (0–1).

What it is made of

Elements

Percentages are of the molecular weight above, worked out the same way the molar mass calculator does it.

Structure

Heavy atoms, hydrogen excluded
6
Total atoms, hydrogen included
15
Rings
1
Aromatic rings
0
Stereocentres
0
Formal charge
0

Functional groups

  • Ether

    An oxygen bridging two carbons.

  • Secondary amine

    Nitrogen bonded to two carbons.

Matched by structural pattern, not by a measurement.

The molecule in three dimensions

Rotate and inspect the atoms. Loaded only when you ask, so the page stays light.

The drawing above is a diagram of what is bonded to what. A molecule is not flat, and the model here is one low-energy shape generated from the connectivity — useful for seeing which groups can reach each other, and not a measured structure. A real sample is a population of conformations, interconverting.

Other names for it

The systematic name on this record is morpholine.

The sources also call it 1-Oxa-4-azacyclohexane, Diethylene oximide, Tetrahydro-1,4-oxazine, Diethylenimide oxide, Diethyleneimide oxide, Diethylene imidoxide, Drewamine, Tetrahydro-2H-1,4-oxazine, Tetrahydro-p-oxazine, p-Isoxazine, tetrahydro-, Tetrahydro-1,4-isoxazine.

Structurally related

Nothing structurally close to Morpholine has a page here yet.

Seen alongside it in reaction records

Where these values came from

compound record.

What this page does not claim

Identifiers are copied from the source record, measured values are reported as published, and calculated values are marked as calculated. Nothing here is a hazard, purity or handling assessment — how the library is checked.