2-Methoxy-p-kresol

Bezeichnung:2-Methoxy-p-kresol

CAS-Nr93-51-6

Englisch Name:2-Methoxy-4-methylphenol

CBNumberCB9667640

SummenformelC8H10O2

Molgewicht138.16

MOL-Datei93-51-6.mol

Synonyma

2-Methoxy-p-kresol

2-Methoxy-p-kresol physikalisch-chemischer Eigenschaften

Schmelzpunkt	5 °C (lit.)
Siedepunkt	221-222 °C (lit.)
Dichte	1.092 g/mL at 25 °C (lit.)
FEMA	2671 \| 2-METHOXY-4-METHYLPHENOL
Brechungsindex	n20/D 1.537(lit.)
Flammpunkt	211 °F
storage temp.	Inert atmosphere,Room Temperature
Löslichkeit	Chloroform (Sparingly), Methanol (Slightly)
Aggregatzustand	Liquid
pka	10.27±0.18(Predicted)
Wichte	1.091.092
Farbe	colorless to light yellow
Geruch (Odor)	at 10.00 % in dipropylene glycol. spicy clove vanilla phenolic medicinal leathery woody smoky burnt
Geruchsart	spicy
Biologische Quelle	synthetic
Wasserlöslichkeit	Slightly soluble in water.
JECFA Number	715
Merck	14,2571
BRN	1862340
Dielectric constant	11.0
LogP	1.65
CAS Datenbank	93-51-6(CAS DataBase Reference)
NIST chemische Informationen	Phenol, 2-methoxy-4-methyl-(93-51-6)
EPA chemische Informationen	Phenol, 2-methoxy-4-methyl- (93-51-6)

Sicherheit

Kennzeichnung gefährlicher	Xn,Xi
R-Sätze:	22-36/37/38
S-Sätze:	26-36-24/25
RIDADR	2810
WGK Germany	3
RTECS-Nr.	GP1755000
F	10
TSCA	Yes
HazardClass	6.1(a)
PackingGroup	II
HS Code	29095090

Gefahreninformationscode (GHS)

2-Methoxy-4-methylphenol 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.
S24/25:Berührung mit den Augen und der Haut vermeiden.
Beschreibung
2-Methoxy-4-methylphenol has a characteristic aromatic odor (sweet, spicy, slightly vanilla-like) and a somewhat bitter taste (vanilla-like). May be prepared by methylation of homopyrocatechin using dimethyl sulfate and alkali; also by hydrogenation of vanillin.
Chemische Eigenschaften
2-Methoxy-4-methylphenol is a clear colorless to slightly yellow liquid or viscous, yeelowish oil, solidifying in the cold. The prismatic crystals melt at 6° C. Sp.Gr. 1.10. B.P. 222° C. Very slightly soluble in water, soluble in alcohol and oils. Sweet-spicy, phenolic-leathery odor with distinctly Vanilla-1ike undertones, balsamicwarm sweetness, but overall too medicinal to become classified as a versatile, floral-balsamic ingredient.
Occurrence
Occurs in beechwood tar; also identified in the essential oils of ylang-ylang, jasmine and anise seeds; it is one of the active constituents of creosote. Reported found in Gruyere cheese, smoked fish, cured pork, beer, rum, bourbon whiskey, malt and Scotch whiskey, sherry, white and red wine, cocoa, coffee, tea, mushrooms, mango, pear brandy, malt, wort, dried bonito, Bourbon vanilla, cuttlefish and green maté.
Verwenden
2-Methoxy-4-methylphenol is used for blending baking and smoked food flavors. Excellent additive and modifier in artificial Ylang-Ylang, Cassie-bases, Jasmin bases, Lily, Gardenia, etc. Finds use in flavor compositions for imitation Vanilla, Clove, various fruit compositions, Rum flavors, etc. and in Nut-Nougat flavor bases. Concentration will be about 0.02 to 1 ppm in the finished consumer product. In beverages, however, it may be as high as 10 to 20 ppm.
Definition
ChEBI: 2-Methoxy-4-methylphenol is a member of phenols and a member of methoxybenzenes. It is used in preparation of renewable bis(cyanate) esters.
Vorbereitung Methode
With three distinct oxygenated functional groups (aldehyde, ether, and hydroxyl), VAN can undergo selective hydrodeoxygenation to produce 2- methoxy-4-methylphenol (MMP), a promising candidate for future biofuel applications and its use in fragrances and intermediate in pharmaceutical synthesis. Kumar et al. developed stable, cost-effective Ni nanoparticles supported on montmorillonite (MMT) clay, which was synthesized for eco-friendly, alcohol-mediated catalytic transfer hydrodeoxygenation of VAN to MMP. The Ni(10%)/MMT catalyst achieved >99% VAN conversion and 95.2% MMP selectivity using isopropanol (IPA) as a solvent and hydrogen donor[1].
Einzelnachweise
[1] Atul Kumar, Prof. Dr. Rajendra Srivastava, Dr. Rajaram Bal. “Ni Nanoparticles Supported Montmorillonite Clay for Selective Catalytic Transfer Hydrodeoxygenation of Vanillin into 2-Methoxy-4-methylphenol.” ChemCatChem 16 9 (2024).
synthetische
By methylation of homopyrocatechin using dimethyl sulfate and alkali; also by hydrogenation of vanillin.
Aroma threshold values
Detection: 90 ppb. Aroma characteristics at 1.0%: smoky, sweet, phenolic, vanilla, spicy clove with a floral carnation nuance.
Taste threshold values
Taste characteristics at 1.0 to 1.25 ppm: sweet phenolic, spice, vanilla, medicinal, clove-like, smoky, guaia col-like with a woody, phenolic nuance.
Allgemeine Beschreibung
2-Methoxy-4-methylphenol is the major component of black-ripe table olive aroma. It is the major anti-inflammatory compound in bamboo vinegar. Kinetics of reaction of 2-methoxy-4-methylphenol with chlorine atoms was studied.
Biochem/physiol Actions
Odor at 1.0%

2-Methoxy-4-methylphenol Upstream-Materialien And Downstream Produkte

2-Methoxy-p-kresol Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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