4-(4-Hydroxyphenyl)-2-butanon

Gefahreninformationscode (GHS)

• Bildanzeige (GHS)

  

• Alarmwort

  Warnung

• Gefahrenhinweise

  H302：Gesundheitsschädlich bei Verschlucken.

Raspberry Ketone Chemische Eigenschaften,Einsatz,Produktion Methoden

• R-Sätze Betriebsanweisung:

  R22:Gesundheitsschädlich beim Verschlucken.

• S-Sätze Betriebsanweisung:

  S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
  S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.

• Beschreibung

  4-(p-Hydroxyphenyl)-2-butanone has a sweet, fruity, raspberry preserves odor. May be prepared by catalytic hydrogenation of phydroxy-benzylidene acetone in the presence of platinum black in ether or methanol or in the presence of palladium absorbed on charcoal.

• Chemische Eigenschaften

  4-(p-Hydroxyphenyl)-2-butanone has a sweet, fruity, raspberry preserves–type odor.

• Chemische Eigenschaften

  4-(4-Hydroxyphenyl)-2-butanone is a highly characteristic component of raspberry aroma. It forms colorless crystals (mp 82–83°C) with a sweet, fruity odor strongly reminiscent of raspberries. Raspberry ketone is prepared by alkali-catalyzed condensation of the alkali salt of 4-hydroxybenzaldehyde and acetone, followed by selective hydrogenation of the double bond in the resulting 4-hydroxybenzalacetone. Other syntheses start from phenol, which is converted into 4-(4-hydroxyphenyl)-2-butanone with methyl vinyl ketone or with 4-hydroxy-2-butanone.

• Chemische Eigenschaften

  white to slightly yellow powder or needles

• Occurrence

  Reported found European cranberry, raspberry, blackberry, loganberry and sea buckthorn (Hippophae rhamnoides L.).

• Verwenden

  Intermediates of Liquid Crystals

• Verwenden

  The primary aroma compound of red raspberries, used in perfume compositions, shampoos, cosmetics and as a food additive. Also an impurity in the synthesis of Dobutamine (D494445).

• Verwenden

  4-(4-Hydroxyphenyl)-2-butanone is used in perfumery, in cosmetics, and as a food additive to impart a fruity odor.

• Definition

  ChEBI: A ketone that is 4-phenylbutan-2-one in which the phenyl ring is substituted at position 4 by a hydroxy group. It is found in a variety of fruits including raspberries, blackberries and cranberries, and is used in perfumery and cosmetics.

• Taste threshold values

  Taste characteristics at 40 ppm: fruity, jamy, berry, raspberry, and blueberry with seedy, cotton candy nuances

• Synthesis Reference(s)

  The Journal of Organic Chemistry, 41, p. 1206, 1976 DOI: 10.1021/jo00869a026
  Synthetic Communications, 19, p. 1109, 1989 DOI: 10.1080/00397918908051034

• Flammability and Explosibility

  Non flammable

• Sicherheitsprofil

  Poison by intraperitoneal route. Moderately toxic by ingestion. Flammable liquid. When heated to decomposition it emits acrid smoke and irritating fumes. See also KETONES.

Raspberry Ketone Upstream-Materialien And Downstream Produkte

4-(4-Hydroxyphenyl)-2-butanon Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global(759)Suppliers

5471-51-2, Raspberry Ketone Verwandte Suche: