4-(1-Methylethyl)benzaldehyd

Bezeichnung:4-(1-Methylethyl)benzaldehyd

CAS-Nr122-03-2

Englisch Name:Cuminaldehyde

CBNumberCB9161294

SummenformelC10H12O

Molgewicht148.2

MOL-Datei122-03-2.mol

Synonyma

4-Isopropylbenzaldehyd

4-(1-Methylethyl)benzaldehyd

4-(1-Methylethyl)benzaldehyd physikalisch-chemischer Eigenschaften

Schmelzpunkt	97 °C
Siedepunkt	235-236 °C(lit.)
Dichte	0.977 g/mL at 25 °C(lit.)
Brechungsindex	n20/D 1.529(lit.)
FEMA	2341 \| CUMINALDEHYDE
Flammpunkt	200 °F
storage temp.	Inert atmosphere,2-8°C
Löslichkeit	ethanol: soluble1mL/4ML, clear, colorless (70%)
Aggregatzustand	Liquid
Farbe	Clear colorless to yellow
Geruch (Odor)	at 10.00 % in dipropylene glycol. spicy cumin green herbal
Geruchsart	spicy
Wasserlöslichkeit	insoluble
Sensitive	Air Sensitive
Merck	14,2621
JECFA Number	868
BRN	636547
Dielectric constant	11.0（15℃）
LogP	3.17
CAS Datenbank	122-03-2(CAS DataBase Reference)
NIST chemische Informationen	Benzaldehyde, 4-(1-methylethyl)-(122-03-2)
EPA chemische Informationen	Cuminaldehyde (122-03-2)

Sicherheit

Kennzeichnung gefährlicher	Xn,Xi
R-Sätze:	22-36/37/38
S-Sätze:	26-36-37/39
WGK Germany	2
RTECS-Nr.	CU7000000
TSCA	Yes
HS Code	29122900
Toxizität	LD50 orally in rats: 1390 mg/kg (Jenner)

Gefahreninformationscode (GHS)

Cuminaldehyde Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R22:Gesundheitsschädlich beim Verschlucken.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
Chemische Eigenschaften
clear colorless to yellow liquid
Chemische Eigenschaften
Cuminaldehyde has a strong, pungent, cumin-like odor and similar taste.
Occurrence
Reported in a large number of essential oils, cumin, Acacia farnesiana, cinnamon, bitter orange, Mexican lime, Eucalyptus globulus, rue, boldus, Artemisia hausiliensis and others. Also reported in lemon and mandarin peel oil, cinnamon bark, anise, clove bud, cumin seed, turmeric, parsley, calabash nutmeg (Monodora myristica Dunal), angelica root, thyme, beef, brandy, grape and mastic gum fruit oil.
Verwenden
Cuminaldehyde has been used to study larvicidal and adulticidal toxicity of monoterpenes against Culex pipiens. It has been used in evaluation of chemical composition, antimicrobial and antioxidant activities of essential oil and various extracts of Eucalyptus gilii.
Verwenden
Cuminaldehyde is a flavoring agent that is a liquid, colorless to yellow in appearance, with a strong pungent odor resembling cumin oil. It is insoluble in water and soluble in alcohol and ether. It is obtained from cumin oil. It is also termed p-, cumaldehyde, and cuminal.
synthetische
From p-isopropylbenzyl chloride and hexamethylenetetramine (Arctander, 1969).
Definition
ChEBI: A member of the class of benzaldehydes that is benzaldehyde substituted by an isopropyl group at position 4. It is a component of essential oils from Cumin and exhibits insecticidal activities.
Taste threshold values
Taste characteristics at 10 ppm: spicy with green cumin and herbal nuances.
Allgemeine Beschreibung
Cuminaldehyde is a constituent of cumin oil that exhibits strong antifungal and antibacterial activities.
Biochem/physiol Actions
Cuminaldehyde increases the insulin secretion in streptozotocin-induced diabetic rats. It suppresses melanin formation in cultured murine B16-F10 melanoma cells.
Sicherheitsprofil
Moderately toxic by ingestion and skin contact. A skin irritant. Combustible liquid. When heated to decomposition it emits acrid smoke and irritating fumes. See also ALDEHYDES.
Synthese
Prepared synthetically by heating p-isopropyl benzoyl chloride with an aqueous or alcoholic hexamethylenetetraamine solution.
läuterung methode
A likely impurity is the benzoic acid. Check the IR for the presence of OH from CO2H, and the CO frequencies. If the acid is present, then dissolve the aldehyde in Et2O, wash it with 10% NaHCO3 until effervescence ceases, then with brine, dry over CaCl2, evaporate and distil the residual oil, preferably under vacuum. It is almost insoluble in H2O, but soluble in EtOH and Et2O. The thiosemicarbazone has m 147o after recrystallisation from aqueous EtOH, MeOH or *C6H6. [Crounse J Am Chem Soc 71 1263 1949, Bernstein et al. J Am Chem Soc 73 906 1951, Gensler & Berman J Am Chem Soc 80 4949 1958, Beilstein 7 H 318, 7 II 347, 7 III 1095, 7 IV 723.]

Cuminaldehyde Upstream-Materialien And Downstream Produkte

4-(1-Methylethyl)benzaldehyd Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

122-03-2, Cuminaldehyde Verwandte Suche:

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