Veratrumaldehyd

Bezeichnung:Veratrumaldehyd

CAS-Nr120-14-9

Englisch Name:Veratraldehyde

CBNumberCB7281578

SummenformelC9H10O3

Molgewicht166.17

MOL-Datei120-14-9.mol

Synonyma

Veratrumaldehyd

Veratrumaldehyd physikalisch-chemischer Eigenschaften

Schmelzpunkt	40-43 °C (lit.)
Siedepunkt	281 °C (lit.)
Dichte	1.1708 (rough estimate)
Dampfdruck	0.09Pa at 24℃
FEMA	3109 \| VERATRALDEHYDE
Brechungsindex	1.5260 (estimate)
Flammpunkt	>230 °F
storage temp.	2-8°C
Löslichkeit	alcohol: freely soluble
Aggregatzustand	Lumps or Fused Solid
Farbe	White to yellow
Wichte	1.15 (liquid)
Geruch (Odor)	at 10.00 % in dipropylene glycol. sweet woody vanilla
Geruchsart	creamy
Wasserlöslichkeit	<0.1 g/100 mL at 22 ºC
Sensitive	Air Sensitive
Merck	14,9951
JECFA Number	877
BRN	473899
Stabilität	Stable. Incompatible with strong bases, strong oxidizing agents.
LogP	0.8 at 25℃
CAS Datenbank	120-14-9(CAS DataBase Reference)
NIST chemische Informationen	Benzaldehyde, 3,4-dimethoxy-(120-14-9)
EPA chemische Informationen	Veratraldehyde (120-14-9)

Sicherheit

Kennzeichnung gefährlicher	Xn,Xi
R-Sätze:	22-38-36/37/38-36/38
S-Sätze:	26-22-24/25-36
WGK Germany	3
RTECS-Nr.	YX5088000
F	9-23
TSCA	Yes
HS Code	29124900
Toxizität	LD50 orally in Rabbit: 2000 mg/kg LD50 dermal Rabbit > 5000 mg/kg

Gefahreninformationscode (GHS)

Veratraldehyde Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R22:Gesundheitsschädlich beim Verschlucken.
R38:Reizt die Haut.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R36/38:Reizt die Augen und die Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S22:Staub nicht einatmen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
Chemische Eigenschaften
off-white crystalline solid
Chemische Eigenschaften
Veratraldehyde has a very sweet, woody, vanilla-like odor with a warm, sweet, vanilla-like taste. This compound gets oxidized in air to odorless veratric acid.
Chemische Eigenschaften
Veratraldehyde is a crystalline solid (mp 44.5–45°C) with a woody, vanillalike odor.
Veratraldehyde can be prepared by methylation of vanillin. It is used in oriental and warm, woody fragrances, as well as in flavor compositions for vanilla notes. It is an intermediate in, for example, the synthesis of pharmaceuticals.
Occurrence
Reported among the constituents of the essential oils of Cymbopogon javanensis and Eryngium poterium. Also reported found in raspberry, ginger, peppermint oil, Bourbon vanilla and mastic gum oil.
Verwenden
Veratraldehyde was used in the preparation of 4-chloromethyl-2-(dimethoxyphenyl)-1,3-dioxolane. It was used in the synthesis of (+)-lithospermic acid, having anti-HIV activity. It forms 1:1 inclusion complexes with cyclodextrins. It reacts with 3-acetyl-2,5-dimethythiophene to yield chalcone dye, (2E)-3-(3,4-Dimethoxyphenyl)-1-(2,5-dimethylthiophen-3-yl)prop-2-en-1-one.
synthetische
Prepared from vanillin by methylation of vanillin with dimethylsulfate under mildly alkaline conditions.
Definition
ChEBI: Veratraldehyde is a dimethoxybenzene that is benzaldehyde substituted by methoxy groups at positions 3 and 4. It is found in peppermint, ginger, raspberry, and other fruits. It has a role as an antifungal agent. It is a member of benzaldehydes and a dimethoxybenzene.
Aroma threshold values
Aroma characteristics at 1.0%: phenolic, sweet vanilla, powdery, slightly woody with a candy and cocoa creaminess.
Taste threshold values
Taste characteristics at 50 ppm: phenolic, vanilla, sweet powdery cocoa, creamy, cherry-like with phenolic and balsamic nuances..
Synthesis Reference(s)
Journal of the American Chemical Society, 69, p. 2070, 1947 DOI: 10.1021/ja01200a517
Organic Syntheses, Coll. Vol. 2, p. 619, 1943
Tetrahedron Letters, 20, p. 975, 1979
Allgemeine Beschreibung
Needles or chunky light peach powder. Has an odor of vanilla beans.
Air & Water Reaktionen
Insoluble in water.
Reaktivität anzeigen
Veratraldehyde is incompatible with strong oxidizing agents and strong bases. . Veratraldehyde is an aldehyde. Aldehydes are readily oxidized to give carboxylic acids. Flammable and/or toxic gases are generated by the combination of aldehydes with azo, diazo compounds, dithiocarbamates, nitrides, and strong reducing agents. Aldehydes can react with air to give first peroxo acids, and ultimately carboxylic acids. These autoxidation reactions are activated by light, catalyzed by salts of transition metals, and are autocatalytic (catalyzed by the products of the reaction).
Brandgefahr
Veratraldehyde is probably combustible.
Flammability and Explosibility
Not classified
Biochem/physiol Actions
Taste at 50 ppm
läuterung methode
Crystallise the ether from diethyl ether, pet ether, CCl4 or toluene. [Beilstein 8 IV 1765.]

Veratraldehyde Upstream-Materialien And Downstream Produkte

Veratrumaldehyd Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

120-14-9, Veratraldehyde Verwandte Suche:

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