394467
Morpholine
purified by redistillation, ≥99.5%
Synonym(s):
Tetrahydro-1,4-oxazine
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About This Item
Empirical Formula (Hill Notation):
C4H9NO
CAS Number:
Molecular Weight:
87.12
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
203-815-1
Beilstein/REAXYS Number:
102549
MDL number:
Assay:
≥99.5%
Form:
liquid
vapor density
3 (vs air)
Quality Level
vapor pressure
31 mmHg ( 38 °C), 7 mmHg ( 20 °C)
assay
≥99.5%
form
liquid
autoignition temp.
590 °F
purified by
redistillation
expl. lim.
10.8 %
refractive index
n20/D 1.454 (lit.)
bp
129 °C
mp
−7-−5 °C (lit.)
solubility
water: miscible
density
0.996 g/mL at 25 °C (lit.)
functional group
ether
SMILES string
C1COCCN1
InChI
1S/C4H9NO/c1-3-6-4-2-5-1/h5H,1-4H2
InChI key
YNAVUWVOSKDBBP-UHFFFAOYSA-N
General description
Morpholine is a heterocyclic secondary amine. It is formed by the condensation of diethanolamine and sulfuric acid. Its IR spectra and Raman spectra at -180°C has been recorded. The crystal structure of morpholine has been determined at 150K. The microwave spectra of morpholine within the 8 to 40GHz region have been investigated. Ascorbate anion and glutathione have been reported to inhibit the aqueous reaction between nitrogen dioxide and morpholine. Conformational studies by Raman spectroscopy and theoretical calculations suggest that equatorial chair conformation of morpholine predominates in the pure liquid state. Degradation of morpholine using Mycobacterium sp. strain RP1 has been proposed.
Application
Morpholine is suitable for use as a test compound in the study of morpholine biodegradation by Mycobacterium strains.
It may be used in the following studies:
It may be used in the following studies:
- As a reactant in the synthesis of 1,3-dihydro-1-hydroxy-3-morpholin-4-yl-2,1-benzoxaborole by reacting with o-formylphenylboronic acid.
- As a corrosion inhibitor and to maintain basic pH in boiler feed water.
- As a reactant in the bis(β-ketoenolates)nickel(II) adducts of morpholine.
- As one of the reagent used in the colorimetric quantitative determination of C-2 unsubstituted phenothiazine derivatives.
- As a reactant in the quantitative determination of α,β-unsaturated compounds.
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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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Morpholine and its derivatives as vapour phase corrosion inhibitors for mild steel.
Subramanian A, et al.
Bulletin of Electrochemistry, 14(10), 289-290 (1998)
Conformational analysis of morpholine studied using Raman spectroscopy and density functional theoretical calculations.
SenGupta S, et al.
Chemical Physics Letters, 639, 1-6 (2015)
R V Cooney et al.
Cancer letters, 32(1), 83-90 (1986-07-01)
Ascorbate anion and glutathione were found to inhibit the aqueous reaction between nitrogen dioxide (NO2) and morpholine (MOR) and thereby prevented the formation of N-nitrosomorpholine (NMOR) and N-nitromorpholine (NTMOR) at both pH 7.4 and 12.5. These antioxidants are approximately 3
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 290505-5G | 04061837830365 |
| 394467-100ML | 04061831982411 |