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B1334

Sigma-Aldrich

Benzaldehyde

Benzaldehyde

ReagentPlus®, ≥99%

Sinonimo/i:

Bitter almond

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2 ML
17,60 €
250 ML
21,60 €
100 G
45,50 €
1 L
45,50 €
2.5 L
114,00 €
18 KG
493,00 €

17,60 €

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Cambia visualizzazione
2 ML
17,60 €
250 ML
21,60 €
100 G
45,50 €
1 L
45,50 €
2.5 L
114,00 €
18 KG
493,00 €

About This Item

Formula condensata:
C6H5CHO
Numero CAS:
100-52-7
Peso molecolare:
106.12
Beilstein:
471223
Numero CE:
202-860-4
Numero MDL:
MFCD00003299
Codice UNSPSC:
12352100
eCl@ss:
39023701
ID PubChem:
57653918
NACRES:
NA.21

17,60 €

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Densità del vapore

3.7 (vs air)

Livello qualitativo

200

Tensione di vapore

4 mmHg ( 45 °C)

Nome Commerciale

ReagentPlus®

Saggio

≥99%

Stato

liquid

Temp. autoaccensione

374 °F

Limite di esplosione

1.4 %, 20 °F

Indice di rifrazione

n20/D 1.545 (lit.)

pH

5.9 (20 °C)

P. ebollizione

178-179 °C (lit.)

Punto di fusione

−26 °C (lit.)

Densità

1.044 g/cm3 at 20 °C (lit.)

Gruppo funzionale

aldehyde
phenyl

Stringa SMILE

O=Cc1ccccc1

InChI

1S/C7H6O/c8-6-7-4-2-1-3-5-7/h1-6H
HUMNYLRZRPPJDN-UHFFFAOYSA-N

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Descrizione generale

Benzaldehyde is an aromatic aldehyde. Rotational transitions in benzaldehyde have been explained based on its microwave absorption spectrum.[1] The conversion of benzaldehyde into reduced compounds in the presence of metal oxides has been studied.[2] SmFeO3 (perovskite-type oxide catalyst) catalyzed cyanosilylation reaction of benzaldehyde with trimethylsilyl cyanide (TMSCN) has been reported.[3]

Applicazioni

Benzaldehyde has been used as a standard in the quantification of Achillea ligustica essential oil by GC-MS (Gas Chromatography-Mass Spectrometry).[4]
Benzaldehyde may be used in the following studies:
  • Preparation of optically active 1-phenylpropan-1-ol.[5]
  • Synthesis of meso-tetraphenylporphins and chlorins.[6]
  • As a test compound to study oxidative amidation reaction of aliphatic primary/secondary amines using N-heterocyclic carbine as a catalyst.[7]
  • Synthesis of 2-phenyl-2,3-dihydro-4H-pyran-4-one with high enantioselectivity by hetero-Diels-Alder (HDA) reaction with Danishefsky′s diene.[8]

Qualità

Chlorine-free

Note legali

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

Avvertenze

Danger

Classi di pericolo

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Chronic 2 - Eye Irrit. 2 - Repr. 1B - Skin Irrit. 2 - STOT SE 3

Organi bersaglio

Respiratory system

Codice della classe di stoccaggio

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

145.4 °F - closed cup

Punto d’infiammabilità (°C)

63 °C - closed cup

Dispositivi di protezione individuale

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

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Certificati d'analisi (COA)

Lot/Batch Number
MKCV7776
SDBB0503
MKCS8607
STBK6361
STBK9355

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B Rosche et al.
Applied microbiology and biotechnology, 57(3), 309-315 (2002-01-05)
Extracts of 14 filamentous fungi were examined regarding their potential for production of (R)-phenylacetylcarbinol [(R)-PAC], which is the chiral precursor in the manufacture of the pharmaceuticals ephedrine and pseudoephedrine. Benzaldehyde and pyruvate were transformed at a scale of 1.2 ml
Microwave Spectrum of Benzaldehyde.
Kakar RK, et al.
J. Chem. Phys. , 52(7), 3803-3813 (1970)
Reduction of benzaldehyde on metal oxides.
Haffad D, et al.
J. Catal., 172(1), 85-92 (1997)
Gas phase hydrogenation of benzaldehyde over supported copper catalysts. Effect of copper loading.
Lanasri K, et al.
Studies in Surface Science and Catalysis, 174, 1279-1282 (2008)
Cyanosilylation of benzaldehyde with TMSCN over perovskite-type oxide catalyst prepared by thermal decomposition of heteronuclear cyano complex precursors.
Yamaguchi S, et al.
Research on Chemical Intermediates, 41(12), 9551-9560 (2015)
Visualizza tutti i documenti correlati

Articoli

Aldol Condensation Reaction

The aldol condensation reaction is an organic reaction introduced by Charles Wurtz, who first prepared the β-hydroxy aldehyde from acetaldehdye in 1872.

Knoevenagel Condensation Reaction

Knoevenagel Condensation is an organic reaction named after Emil Knoevenagel. It is a classic C-C bond formation reaction and a modification of the Aldol Condensation.

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

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    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 risposta

    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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