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9-Methylene-9H-fluorene

9-Methylene-9H-fluorene Struktur
4425-82-5
CAS-Nr.
4425-82-5
Englisch Name:
9-Methylene-9H-fluorene
Synonyma:
Dibenzofulvene;9-methylenefluorene;Fluorenylidenemethane;9-methylidenefluorene;9-Methylene-9H-fluorene;9H-Fluorene, 9-Methylene-;Dibenzofulvene (DBF) Oligomer-9-Methylene-9H-fluorene
CBNumber:
CB21454260
Summenformel:
C14H10
Molgewicht:
178.23
MOL-Datei:
4425-82-5.mol

9-Methylene-9H-fluorene Eigenschaften

Schmelzpunkt:
46-48 °C
Siedepunkt:
305.9±12.0 °C(Predicted)
Dichte
1.12±0.1 g/cm3(Predicted)
storage temp. 
Keep in dark place,Inert atmosphere,Store in freezer, under -20°C
L?slichkeit
Chloroform (Slightly), Ethyl Acetate (Slightly)
Aggregatzustand
Solid
Farbe
Off-White to Pale Beige
Stabilit?t:
Light Sensitive
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Warnung
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
H315 Verursacht Hautreizungen. Hautreizung Kategorie 2 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P280, P302+P352, P321,P332+P313, P362
H319 Verursacht schwere Augenreizung. Schwere Augenreizung Kategorie 2 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P280, P305+P351+P338,P337+P313P
H335 Kann die Atemwege reizen. Spezifische Zielorgan-Toxizit?t (einmalige Exposition) Kategorie 3 (Atemwegsreizung) Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" />
Sicherheit
P261 Einatmen von Staub vermeiden.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach M?glichkeit entfernen. Weiter spülen.

9-Methylene-9H-fluorene Chemische Eigenschaften,Einsatz,Produktion Methoden

Beschreibung

9-Methylene-9H-fluorene is a fluorescent probe that can be used to detect the presence of hydroxyl groups in vitro. It reacts with the hydroxyl group on the substrate film and emits light, which is then detected using a fluorometer. The reaction mechanism is shown below. Fluorophores are often used for sample preparation because they are relatively stable and can be easily removed from the final product. 9-Methylene-9H-fluorene has been shown to enhance cationic polymerization, which can lead to improved efficacy in some applications.

Chemische Eigenschaften

9-methylidenefluorene or dibenzofulvene (DBF) is a polycyclic aromatic hydrocarbon with chemical formula C14H10.
9-methylidenefluorene is an intermediate of Fmoc cleavage reaction. It is an analog of a 1,1-diphenylethylene. Polymerization of 9-methylene-fluorene produces a π-stacked polymer.

Verwenden

9-Methylidenefluorene is an analog of 9-Methylfluorene (M305335); a compound that has been shown to be mutagenic in Salmonella typhimurium TA98 and TA100 in the presence of 9000 X g supernantant from Aroclor-induced rats.

Application

9-Methylene-fluorene is an intermediate of Fmoc cleavage reaction. It is an analog of a 1,1-diphenylethylene. Polymerization of 9-methylene-fluorene produces a π-stacked polymer.

synthetische

A suspension of methyl triphenylphosphonium bromide (31.22 g; 87.3 mmol) in 500 mL of ether was added at -30°C. 10M n-butyllithium in hexane (8.73 mL; 87.3 mmol) was added to the mixture, and the mixture was stirred at room temperature for 1-2 hours. To the above mixture, 15 g (83.2 mmol) of 9-fluorenone in 50 mL of tetrahydrofuran was added, and the mixture was refluxed for 1 hour. After cooling the above mixture to 0°C, 9-Methylene-9H-fluorene was obtained after purification.
9-methylidenefluorene

9-Methylene-9H-fluorene Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


9-Methylene-9H-fluorene Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

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  • 9-methylidenefluorene
  • 9-Methylene-9H-fluorene
  • 9H-Fluorene, 9-Methylene-
  • Fluorenylidenemethane
  • Dibenzofulvene (DBF) Oligomer-9-Methylene-9H-fluorene
  • 9-methylenefluorene
  • Dibenzofulvene
  • 4425-82-5
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