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6-Methyl-2H-1-benzopyran-2-on

6-Methylcoumarin Struktur
92-48-8
CAS-Nr.
92-48-8
Bezeichnung:
6-Methyl-2H-1-benzopyran-2-on
Englisch Name:
6-Methylcoumarin
Synonyma:
6-Methyl;METHYL COUMARIN;2H-1-BENZOPYRAN-2-ONE, 6-METHYL-;6-MC;Toncarine;6-methyl-coumari;6-Methyl-2-oxochronene;6-METHYL-2H-CHROMEN-2-ONE;toncair;pralina
CBNumber:
CB8691534
Summenformel:
C10H8O2
Molgewicht:
160.17
MOL-Datei:
92-48-8.mol

6-Methyl-2H-1-benzopyran-2-on Eigenschaften

Schmelzpunkt:
73-76 °C (lit.)
Siedepunkt:
303 °C/725 mmHg (lit.)
Dichte
1.0924 (rough estimate)
Brechungsindex
1.5300 (estimate)
FEMA 
2699 | 6-METHYLCOUMARIN
Flammpunkt:
303°C/725mm
storage temp. 
Sealed in dry,Room Temperature
L?slichkeit
DMSO : ≥ 125 mg/mL (780.42 mM)
Aggregatzustand
powder to crystal
Farbe
White to Almost white
Geruch (Odor)
at 1.00 % in dipropylene glycol. coconut creamy powdery coumarinic tonka cinnamyl vanilla floral earthy
Geruchsart
coconut
JECFA Number
1172
BRN 
4222
LogP
1.85
CAS Datenbank
92-48-8(CAS DataBase Reference)
NIST chemische Informationen
2H-1-Benzopyran-2-one, 6-methyl-(92-48-8)
EPA chemische Informationen
6-Methylcoumarin (92-48-8)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher Xn
R-S?tze: 22-42/43
S-S?tze: 22-36/37-45
WGK Germany  3
RTECS-Nr. GN7792000
TSCA  Yes
HS Code  29321900
Giftige Stoffe Daten 92-48-8(Hazardous Substances Data)
Toxizit?t The acute oral LD50 value in rats was reported to be 1.68 g/kg (1.43-1.93 g/kg) (Moreno, 1973). The acute dermal LD50 value in rabbits exceeded 5 g/kg (Moreno, 1973).
Bildanzeige (GHS) GHS hazard pictogramsGHS hazard pictograms
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H302 Gesundheitssch?dlich bei Verschlucken. Akute Toxizit?t oral Kategorie 4 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P270, P301+P312, P330, P501
H317 Kann allergische Hautreaktionen verursachen. Sensibilisierung der Haut Kategorie 1A Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P261, P272, P280, P302+P352,P333+P313, P321, P363, P501
H334 Kann bei Einatmen Allergie, asthmaartige Symptome oder Atembeschwerden verursachen. Sensibilisierung der Atemwege Kategorie 1 Achtung GHS hazard pictogramssrc="/GHS08.jpg" width="20" height="20" /> P261, P285, P304+P341, P342+P311,P501
Sicherheit
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P302+P352 BEI BERüHRUNG MIT DER HAUT: Mit viel Wasser/... (Hersteller kann, falls zweckm??ig, ein Reinigungsmittel angeben oder, wenn Wasser eindeutig ungeeignet ist, ein alternatives Mittel empfehlen) waschen.

6-Methyl-2H-1-benzopyran-2-on Chemische Eigenschaften,Einsatz,Produktion Methoden

R-S?tze Betriebsanweisung:

R22:Gesundheitssch?dlich beim Verschlucken.
R42/43:Sensibilisierung durch Einatmen und Hautkontakt m?glich.

S-S?tze Betriebsanweisung:

S22:Staub nicht einatmen.
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn m?glich, dieses Etikett vorzeigen).

Chemische Eigenschaften

6-methylcoumarin is a white to almost white crystalline powder with has a somewhat coconut-like odor. the odor is also characterized as having a delicate fig or date sweetness. it has an almost bitter taste above 50 ppm, turning sweet and vanilla-like at lower levels. soluble in benzene, hot ethanol and non-volatile oil, insoluble in hot water.

Occurrence

Has apparently not been reported to occur in nature

Verwenden

6-Methylcoumarin is a synthetic fragrance in cosmetics, toiletries and soaps. It mainly used to prepare flavors such as coconut, vanilla and caramel.

synthetische

6-methylcoumarin is synthesized from p-cresol and fumaric acid. Preheat 72% sulfuric acid to 80 °C, add a mixture of fumaric acid and p-cresol, keep the reaction at 160-170 °C for 3-4 hours, cool, pour into crushed ice to precipitate a precipitate, and filter. The filtrate was extracted with benzene, and after adding benzene, the obtained crude product was subjected to vacuum distillation to obtain 6-methylcoumarin.
synthesis of 6-methylcoumarin: By heating 6-methyl coumarin-3-carboxylic acid to 300 to 340°C; by condensation of p-cresol-disulfonic acid with fumaric acid in the presence of H2SO4; by condensation of p-homosalicyclic aldehyde with malonic acid in the presence of aniline, followed by heating for the lactone; from salicylaldehyde with propionic acid anhydride and sodium propionate.

Definition

ChEBI: 6-methylcoumarin is a member of the class of coumarins that is coumarin in which the hydrogen at position 6 is replaced by a methyl group. It has a role as a fragrance and an allergen.

Allgemeine Beschreibung

6-methylcoumarin appears as white crystals with a flavor of vanilla. Insoluble in water. (NTP, 1992)

Air & Water Reaktionen

Insoluble in water.

Reaktivit?t anzeigen

Ketones, such as 6-Methylcoumarin, are reactive with many acids and bases liberating heat and flammable gases (e.g., H2). The amount of heat may be sufficient to start a fire in the unreacted portion of the ketone. Ketones react with reducing agents such as hydrides, alkali metals, and nitrides to produce flammable gas (H2) and heat. Ketones are incompatible with isocyanates, aldehydes, cyanides, peroxides, and anhydrides. They react violently with aldehydes, HNO3, HNO3 + H2O2, and HClO4.

Brandgefahr

6-Methylcoumarin is combustible.

Sicherheitsprofil

Poison by subcutaneous route. Moderately toxic by ingestion. A skin irritant. Mutation data reported. Combustible liquid. When heated to decomposition it emits acrid smoke and irritating fumes.

6-Methyl-2H-1-benzopyran-2-on Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


6-Methyl-2H-1-benzopyran-2-on Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

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92-48-8(6-Methyl-2H-1-benzopyran-2-on)Verwandte Suche:


  • Coumarin, 6-methyl-
  • Coumarin,6-methyl-
  • NCI-C55812
  • pralina
  • toncair
  • 6-Methyl-1,2-benzopyrone
  • 6-methyl-2h-1-benzopyran-2-on
  • 6-methyl-2H-1-Benzopyran-2-one
  • 6-Methyl-2-oxo-2H-benzopyran
  • 6-Methyl-chromen-2-one
  • 6-METHYL-CIS-O-COUMARINIC LACTONE
  • 6-METHYLCOUMARINIC ANHYDRIDE
  • 6-METHYLCUMARIN
  • 6-METHYLBENZOPYRONE
  • METHYLCOUMARIN, 6-(RG)
  • 6-Methylcoumarin (6-MC)
  • METHYLCOUMARIN, 6-
  • FEMA 2699
  • 6-Metyl Coumarin
  • 6-METHYLCOUMARIN 99+% FCC
  • 6-METHYLCOUMARIN, 99+%
  • 6-METHYLCOUMARIN CRYSTAL
  • 6-METHYLCOUMARIN, POWDER
  • 6-Methlyl coumarin
  • 6-Methylcoumarin 1g [92-48-8]
  • 6-Methyl-2-oxochroMene
  • cocodescol
  • 6-METHYLCOUMARIN
  • 6-Methylcoumarin>
  • Methylcoumarin Methylcoumarin
  • 6-Methylcoumarin (6-MC)@100 μg/mL in Methanol
  • 6-Methylcoumarin USP/EP/BP
  • 92-48-8 6-Methylcoumarin
  • Toncarine
  • 6-MC
  • 6-Methyl-2-oxochronene
  • 6-methyl-coumari
  • 6-METHYL-2H-CHROMEN-2-ONE
  • 2H-1-BENZOPYRAN-2-ONE, 6-METHYL-
  • METHYL COUMARIN
  • 6-Methyl
  • 6-Methylcoumarin(RG)
  • 92-48-8
  • 92-42-8
  • CH3C6H3CHCHCOO
  • Building Blocks
  • Coumarins
  • Heterocyclic Building Blocks
  • Building Blocks
  • Heterocyclic Building Blocks
  • Alphabetical Listings
  • Flavors and Fragrances
  • M-N
  • Building Blocks
  • Chemical Synthesis
  • Heterocyclic Building Blocks
  • Coumarins
  • Miscellaneous
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