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M87509

Sigma-Aldrich

3-Buten-2-on

contains 0.3-1.0% hydroquinone as stabilizer, technical grade, 90%

Synonym(e):

Methyl-vinylketon, Vinyl-methylketon

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About This Item

Lineare Formel:
CH2=CHCOCH3
CAS-Nummer:
78-94-4
Molekulargewicht:
70.09
Beilstein:
506021
MDL-Nummer:
MFCD00008777
UNSPSC-Code:
12352100
PubChem Substanz-ID:
24897283
NACRES:
NA.22
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Qualität

technical grade

Qualitätsniveau

200

Dampfdichte

1.3 (vs air)

Dampfdruck

310 mmHg ( 55 °C)
71 mmHg ( 20 °C)

Assay

90%

Form

liquid

Enthält

0.3-1.0% hydroquinone as stabilizer

Expl.-Gr.

15.64 %

Verunreinigungen

<7% water

Brechungsindex

n20/D 1.411 (lit.)

bp

81 °C (lit.)

Löslichkeit

H2O: soluble

Dichte

0.864 g/mL at 25 °C (lit.)

Lagertemp.

2-8°C

SMILES String

CC(=O)C=C

InChI

1S/C4H6O/c1-3-4(2)5/h3H,1H2,2H3

InChIKey

FUSUHKVFWTUUBE-UHFFFAOYSA-N

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Anwendung

3-Buten-2-one can undergo conjugate addition with methanol over the solid base catalysts to afford 4-methoxy-butan-2-one.[1] It can also undergo coupling reaction with alkyltins and alkynes in the presence of a nickel complex to form stereo-defined conjugated enynes.[2]

Signalwort

Danger

Gefahreneinstufungen

Acute Tox. 1 Dermal - Acute Tox. 1 Inhalation - Acute Tox. 2 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Flam. Liq. 2 - Skin Corr. 1B - Skin Sens. 1

Lagerklassenschlüssel

3 - Flammable liquids

WGK

WGK 3

Flammpunkt (°F)

19.4 °F - closed cup

Flammpunkt (°C)

-7 °C - closed cup

Persönliche Schutzausrüstung

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

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
BCCM9275
BCCM9276
BCCM9328
BCCM8329
BCCM8330

Die passende Version wird nicht angezeigt?

Wenn Sie eine bestimmte Version benötigen, können Sie anhand der Lot- oder Chargennummer nach einem spezifischen Zertifikat suchen.

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2-Methylcyclohexanon 99%

Sigma-Aldrich

M38400

2-Methylcyclohexanon

4-Hydroxy-2-butanon 95%

Sigma-Aldrich

252557

4-Hydroxy-2-butanon

Synthesis of stereodefined enynes by the nickel-catalyzed coupling reaction of alkynyltins, alkynes, and enones.
Ikeda SI
Journal of the American Chemical Society, 116(13), 5975-5976 (1994)
Conjugate addition of methanol to 3-buten-2-one over solid base catalysts.
Kabashima H, et al.
Applied Catalysis A: General, 214(1), 121-124 (2001)
David Rabuka et al.
Journal of the American Chemical Society, 130(18), 5947-5953 (2008-04-12)
The controlled addition of structurally defined components to live cell membranes can facilitate the molecular level analysis of cell surface phenomena. Here we demonstrate that cell surfaces can be engineered to display synthetic bioactive polymers at defined densities by exogenous
Richard M LoPachin et al.
Toxicological sciences : an official journal of the Society of Toxicology, 98(2), 561-570 (2007-05-24)
Conjugated Type-2 alkenes, such as acrylamide (ACR), are soft electrophiles that produce neurotoxicity by forming adducts with soft nucleophilic sulfhydryl groups on proteins. Soft-soft interactions are governed by frontier molecular orbital characteristics and can be defined by quantum mechanical parameters
Christopher J Martyniuk et al.
Chemical research in toxicology, 24(12), 2302-2311 (2011-11-17)
α,β-Unsaturated carbonyls make up an important class of chemicals involved in environmental toxicity and disease processes. Whereas adduction of cysteine residues on proteins is a well-documented reaction of these chemicals, such a generic effect cannot explain the molecular mechanism of
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Questions

1–3 of 3 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/449/386/product-dating-information-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

      Helpful?

  3. 90% 의 순도인데 나머지 10%는 어떤 물질인가요? 물인가요?? 물이라면 molecular seive를 넣어 보관해도 되나요?

    1 answer

    1. This product contains a small amount of hydroquinone as a stabilizer. Per product specification, a maximum of 7% water is allowable. While the minimum purity for this material is 90%, a review of recently produced lots show an average purity of 98%. Other impurities are not identified. Water is often the primary impurity with average values for recent lots ranging from 2 - 2.5%. The effectiveness of storing the material with seives or desiccants has not been evaluated, however this would not be detrimental.

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