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134236

Sigma-Aldrich

Morpholin

ReagentPlus®, ≥99%

Synonym(e):

Tetrahydro-1,4-oxazin

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About This Item

Empirische Formel (Hill-System):
C4H9NO
CAS-Nummer:
110-91-8
Molekulargewicht:
87.12
Beilstein:
102549
EG-Nummer:
203-815-1
MDL-Nummer:
MFCD00005972
UNSPSC-Code:
12352100
eCl@ss:
39162409
PubChem Substanz-ID:
24848140
NACRES:
NA.21
Preise und Verfügbarkeit sind derzeit nicht verfügbar.

Dampfdichte

3 (vs air)

Qualitätsniveau

200

Dampfdruck

31 mmHg ( 38 °C)
7 mmHg ( 20 °C)

Produktlinie

ReagentPlus®

Assay

≥99%

Form

liquid

Selbstzündungstemp.

590 °F

Expl.-Gr.

10.8 %

Brechungsindex

n20/D 1.454 (lit.)

bp

129 °C (lit.)

mp (Schmelzpunkt)

−7-−5 °C (lit.)

Dichte

0.996 g/mL at 25 °C (lit.)

Funktionelle Gruppe

ether

SMILES String

C1COCCN1

InChI

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

InChIKey

YNAVUWVOSKDBBP-UHFFFAOYSA-N

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Allgemeine Beschreibung

Morpholine can be obtained, via degradation of N-methylmorpholine N-oxide (NMMO) during fiber production.[1]

Morpholine is a cyclic amine that serves as a solvent, corrosion inhibitor, and chemical intermediate.[2]

Anwendung

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.[3]

Rechtliche Hinweise

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

Signalwort

Danger

Gefahreneinstufungen

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

Lagerklassenschlüssel

3 - Flammable liquids

WGK

WGK 1

Flammpunkt (°F)

87.8 °F - closed cup

Flammpunkt (°C)

31 °C - closed cup

Persönliche Schutzausrüstung

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

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
MKCT3348
STBK6914
STBK6296
STBK8032
MKCR7420

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4-Aminomorpholin 97%

Sigma-Aldrich

A66308

4-Aminomorpholin

1-Methylpiperazin 99%

Sigma-Aldrich

130001

1-Methylpiperazin

Piperidin ReagentPlus®, 99%

Sigma-Aldrich

104094

Piperidin

Pyrrolidin ≥99.0%

Sigma-Aldrich

83240

Pyrrolidin

"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)
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)
"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
Shi-Kai Xiang et al.
Chemical communications (Cambridge, England), 47(28), 8097-8099 (2011-06-21)
Organocatalytic direct C3 alkenylation of indoles has been developed. Simple and readily available morpholine trifluoroacetic acid salt is employed as an efficient catalyst in this oxidative dehydrogenative reaction. Simplicity and practicality constitute the most attractive advantages of this reaction.
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Questions

1–2 of 2 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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