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2-Hydroxy-3-methylcyclopent-2-enon

Methyl cyclopentenolone Struktur
80-71-7
CAS-Nr.
80-71-7
Bezeichnung:
2-Hydroxy-3-methylcyclopent-2-enon
Englisch Name:
Methyl cyclopentenolone
Synonyma:
2-Cyclopenten-1-one, 2-hydroxy-3-methyl-;CYCLOTENE;Corylon;Corylone;2-Hydroxy-3-methylcyclopent-2-en-1-one;2-HYDROXY-3-METHYLCYCLOPENT-2-ENONE;2-HYDROXY-3-METHYL-2-CYCLOPENTENONE;Cycloten;FEMA 2700;Methyl cyclopentenolone ,99%
CBNumber:
CB1124237
Summenformel:
C6H8O2
Molgewicht:
112.13
MOL-Datei:
80-71-7.mol

2-Hydroxy-3-methylcyclopent-2-enon Eigenschaften

Schmelzpunkt:
104-108°C
Siedepunkt:
170.05°C (rough estimate)
Dichte
1.0795 (rough estimate)
Dampfdruck
2.1hPa at 20℃
FEMA 
2700 | METHYLCYCLOPENTENOLONE
Brechungsindex
1.4532 (estimate)
Flammpunkt:
100°C
storage temp. 
Store at +2°C to +8°C.
L?slichkeit
Chloroform (Slightly), Methanol (Slightly)
pka
9.21±0.20(Predicted)
Farbe
White crystalline powder or fine crystals
Geruch (Odor)
at 1.00 % in dipropylene glycol. caramel maple syrup
Geruchsart
caramellic
JECFA Number
418
LogP
0.4 at 25℃
CAS Datenbank
80-71-7(CAS DataBase Reference)
NIST chemische Informationen
2-Cyclopenten-1-one, 2-hydroxy-3-methyl-(80-71-7)
EPA chemische Informationen
Maple lactone (80-71-7)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher Xi
R-S?tze: 36/37/38-43
S-S?tze: 26-36/37-24/25-22
WGK Germany  3
RTECS-Nr. GY7298000
HS Code  29144090
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
H318 Verursacht schwere Augensch?den. Schwere Augensch?digung Kategorie 1 Achtung GHS hazard pictogramssrc="/GHS05.jpg" width="20" height="20" /> P280, P305+P351+P338, P310
Sicherheit
P261 Einatmen von Staub vermeiden.
P264 Nach Gebrauch gründlich waschen.
P264 Nach Gebrauch gründlich waschen.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P301+P312 BEI VERSCHLUCKEN: Bei Unwohlsein GIFTINFORMATIONSZENTRUM/Arzt/... (geeignete Stelle für medizinische Notfallversorgung vom Hersteller/Lieferanten anzugeben) anrufen.
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.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach M?glichkeit entfernen. Weiter spülen.

2-Hydroxy-3-methylcyclopent-2-enon Chemische Eigenschaften,Einsatz,Produktion Methoden

Chemische Eigenschaften

Methyl cyclopentenolone occurs in beechwood tar and has a caramel-like (burnt sugar) odor. It has been identified as a flavor component in food. Crystals of the compound usually contain 1 mol of water. Synthetic routes of production are of limited importance in comparison with isolation from beechwood tar. Homologs of cyclotene such as 3-ethyl-2-hydroxy-2-cyclopenten-1-one, C7H10O2, Mr 126.16, 2-hydroxy-3,4-dimethyl-2-cyclopenten-1-one, C7H10O2, Mr 126.16, and 2-hydroxy-3,5-dimethyl-2-cyclopenten-1-one, C7H10O2, Mr 126.16, are also used as flavor ingredients and have similar caramel-like properties.
Cyclotene and its homologs are frequently used in flavor compositions for its caramel note, for example, in beverages and in confectionery.

Occurrence

Reported to be found during the dry distillation of wood and in the corresponding tar oil. It has also been identified in fenugreek (FenaroWs Handbook of Flavor Ingredients, 1975).

Verwenden

Methyl Cyclopentenolone is a flavoring agent that is a white crys- talline powder. it has a nutty odor suggesting a maple-licorice aroma when diluted. it is soluble in alcohol and propylene glycol, slightly soluble in most fixed oils, and sparingly soluble in water. it is obtained by synthesis. it is also termed 3-methyl-cyclopentane-1,2-dione.

synthetische

By ketonic hydrolysis of the corresponding dicarboxylic ester (Arctander, 1969)

Application

Methyl cyclopentenolone is used sparingly in perfume compositions often in combination with Coumarin or Coumarin derivatives. It is an excellent fortifier for such materials in Lavender fragrances, New Mown Hay, "tabac" type fragrances, spicy bases, etc. It falls naturally into Celery seed oil, Lovage, Fenugreek, Tonka, Liatris, Flouve, etc. It is, however, in flavor compositions that Methyl cyclopentenolone has found its truly extensive application.

Allgemeine Beschreibung

Methyl cyclopentenolone is one of the flavor compounds of maple syrup, coffee oil and wood smoke. It is reported to be one the key aroma compounds in Wasanbon sugar, contributing to the maple-like flavor. Methyl cyclopentenolone is also one of the major volatile compound formed during the thermal degradation of glucose.

2-Hydroxy-3-methylcyclopent-2-enon Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


2-Hydroxy-3-methylcyclopent-2-enon Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

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80-71-7(2-Hydroxy-3-methylcyclopent-2-enon)Verwandte Suche:


  • 2-HYDROXY-3-METHYL-2-CYCLOPENTENE-1-ONE
  • 2-hydroxy-3-methyl-2-cyclopenten1-one (cycloten)
  • 3-Methyl-1,2-cyclopentanedione (cyclotene)
  • 3-Methyl-2-cyclopenten-2-ol-1-one
  • 3-Methyl-2-cyclopentene-2-ol-1-one
  • 3-Methyl-2-cyclopentene-2-olone
  • RARECHEM AQ C5 0001
  • METHYL CYCLOPENTENOLONE
  • METHYL CYCLOPENTENOLONE, ANHYDROUS
  • METHYL CYCLOPENTENOLONE, MONOHYDRATE
  • METHYL CYCLOPENTENOLONE, NATURAL
  • MethylCyclopetenolone
  • 3-Methyl-2-hydroxy-2-cyclopentanone
  • 3-METHYLCYCLOPENTANE-1,2-DIONEHYDRATE
  • 3-METHYL-2-CYCLOPENTENON-2-OL
  • Methlyl cyclopentenolone
  • 3-Methylcyclopent-2-en-2-ol-1-one
  • Cyclotene 3-Methyl-1,2-cyclopentanedione 3-Methyl-2-cyclopentenon-2-ol
  • Methyl cyclopentyl enol ketone
  • Methyl cyclopentenolone 2-Hydroxy-3-methyl-2-cyclopentene-1-one
  • 2-Hydroxy-3–methyl-2-cyclopenten-1-on 3-Methylcyclopentane-1,2-dione Methyl cyclopentenolone
  • Methylcyclopentyl pregnenolone (MCP)
  • 2-Hydroxy-3-methyl-2-cyclopentene-1-one for synthesis
  • Methylcyclopentenolone(3-methyl-2-hydroxy-2-cyclopenten-1-one)
  • Top quality Methyl cyclopentenolone 80-71-7 kf-wang(at)kf-chem.com
  • opentenoL
  • Cyclotene/Methyl cyclopentenolone
  • 2-Hydroxy-3-methyl-2-cyclopentenone>
  • Methyl Cyclopentenolone,>98%
  • Methyl cyclopentenolone USP/EP/BP
  • Methyl Cyclopentenolone (MCP)
  • 2-HYDROXY-3-METHYLCYCLOPENT-2-ENONE
  • 2-HYDROXY-3-METHYL-2-CYCLOPENTENONE
  • 2-Hydroxy-1-methylcyclopenten-3-one
  • 2-hydroxy-3-methyl-2-cyclopenten-1-on
  • 2-Hydroxy-3-methyl-2-cyclopenten-1-one (cyclotene)
  • 2-Hydroxy-3-methylcyclopent-2-en-1-one
  • FEMA 2700
  • CYCLOTENE
  • Corylon
  • Corylone
  • Cycloten
  • 2-Cyclopenten-1-one, 2-hydroxy-3-methyl-
  • 3-METHYL-2-HYDROXY-2-CYCLOPENTENONE
  • Methyl cyclopentenolone ,99%
  • Methyl cyclopentenone ketone
  • Tetrahydrolinalool 78-69-3
  • 80-71-7
  • 70-71-7
  • insect pheromone
  • alcohol Flavor
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