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283754

2(5H)-Furanon

98%

Synonym(e):

γ-Crotonlacton, 2-Buten-1,4-olid

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Größe/SKUVerfügbarkeitPreis
1 g
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€ 72,60
5 g
Warenkorb auf Verfügbarkeit prüfen
€ 287,00

Über diesen Artikel

Empirische Formel (Hill-System):
C4H4O2
CAS-Nummer:
Molekulargewicht:
84.07
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
EC Number:
207-839-3
Beilstein/REAXYS Number:
383585
MDL number:
Assay:
98%
Form:
liquid

€ 72,60


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Quality Segment

assay

98%

form

liquid

refractive index

n20/D 1.469 (lit.)

bp

86-87 °C/12 mmHg (lit.)

mp

4-5 °C (lit.)

density

1.185 g/mL at 25 °C (lit.)

functional group

ester

storage temp.

2-8°C

SMILES string

O=C1OCC=C1

InChI

1S/C4H4O2/c5-4-2-1-3-6-4/h1-2H,3H2

InChI key

VIHAEDVKXSOUAT-UHFFFAOYSA-N

General description

Chiral urea compounds catalyzed hetero-Michael addition reaction of 2(5H)-furanone (γ-crotonolactone) to pyrrolidine. The quorum sensing inhibition activity by 2(5H)-furanone was studied using bioindicator strains.

Application

A versatile reagent used in Michael addition reactions for synthesis of lignans. Also employed in three-component Michael-Aldol reactions with an aldehyde anda thiolate or carbanion.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

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Dieser Artikel
3935091430110W315303
description

98%

description

technical grade, 90%

description

United States Pharmacopeia (USP) Reference Standard

description

97%, FG

assay

98%

assay

90%

assay

-

assay

97%

Quality Level

200

Quality Level

100

Quality Level

-

Quality Level

300, 400

bp

86-87 °C/12 mmHg (lit.)

bp

97-99 °C/20 mmHg (lit.)

bp

-

bp

83-86 °C/0.5 mmHg (lit.)

storage temp.

2-8°C

storage temp.

-

storage temp.

2-8°C

storage temp.

2-8°C

density

1.185 g/mL at 25 °C (lit.)

density

1.13 g/mL at 25 °C (lit.)

density

-

density

-

form

liquid

form

liquid

form

-

form

-


Lagerklasse

10 - Combustible liquids

Was ist los?

WGK 3

Flammpunkt (°F)

213.8 °F - closed cup

Flammpunkt (°C)

101 °C - closed cup

PSA (Persönliche Schutzausrüstung)

Eyeshields, Gloves, type ABEK (EN14387) respirator filter



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Analysenzertifikate (COA)

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Questions

1–2 of 2 Questions  
  1. 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/418/501/product-dating-information-06-25-mk.pdf

      Helpful?

  2. 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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