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CAS NO:86-73-7
EC NO:201-695-5
Fluorene /ˈflʊəriːn/, or 9H-fluorene is an organic compound with the formula (C6H4)2CH2.
Fluorene forms white crystals that exhibit a characteristic, aromatic odor similar to that of naphthalene.
Fluorene has a violet fluorescence, hence its name. For commercial purposes it is obtained from coal tar.
Fluorene is insoluble in water and soluble in many organic solvents. Although sometimes classified as a polycyclic aromatic hydrocarbon, the five-membered ring has no aromatic properties.
Fluorene is mildly acidic.
Properties:
Chemical formula: C13H10
Molar mass: 166.223 g·mol−1
Density: 1.202 g/mL
Melting point: 116 to 117 °C (241 to 243 °F; 389 to 390 K)
Boiling point: 295 °C (563 °F; 568 K)
Solubility in water: 1.992 mg/L
Solubility: organic solvents
log P: 4.18
Acidity (pKa): 22.6
Magnetic susceptibility (χ): -110.5·10−6 cm3/mol
Uses
Fluorene is a precursor to other fluorene compounds; the parent species has few applications.
Fluorene-9-carboxylic acid is a precursor to pharmaceuticals. Oxidation of fluorene gives fluorenone, which is nitrated to give commercially useful derivatives.
9-Fluorenylmethyl chloroformate (Fmoc chloride) is used to introduce the 9-fluorenylmethyl carbamate (Fmoc) protecting group on amines in peptide synthesis.
Polyfluorene polymers (where carbon 7 of one unit is linked to carbon 2 of the next one, displacing two hydrogens) are electrically conductive and electroluminescent, and have been much investigated as a luminophore in organic light-emitting diodes.
Fluorene dyes
Fluorene dyes are well developed. Most are prepared by condensation of the active methylene group with carbonyls. 2-Aminofluorene, 3,6-bis-(dimethylamino)fluorene, and 2,7-diiodofluorene are precursors to dyes.
Fluorene is a white leaflets. Sublimes easily under a vacuum. Fluorescent when impure.
Fluorene is an ortho-fused tricyclic hydrocarbon that is a major component of fossil fuels and their derivatives
Fluorene is an ortho-fused polycyclic arene and an ortho-fused tricyclic hydrocarbon.
Fluorene is a natural product found in Zea mays and Angelica gigas with data available.
Use Of Fluorene:
-Resinous products, dyestuffs.
-Derivatives of fluorene show activity as herbicides and growth regulators.
-CHEM INT IN NUMEROUS MISC APPLICATIONS & IN FORMATION OF POLYRADICALS FOR RESINS
Fluorene was used study the extraction of specific, semiconducting single-wall carbon nanotubes (SWCNTs).
Fluorene is one of a group of chemicals called polycyclic aromatic hydrocarbons, PAHs for short.
Fluorene is a polycyclic aromatic hydrocarbon.
Fluorene forms white crystals that exhibit a characteristic, aromatic odor similar to that of naphthalene.
Fluorene is combustible.
Fluorene has a violet fluorescence, hence its name.
Physicochemical Information:
Boiling point: 298.0 °C
Flash point: 151.0 °C (External MSDS)
Melting Point: 112 - 116 °C (External MSDS)
Vapor pressure: 13 hPa (146 °C)
Solubility: 0.002 g/l insoluble
Fluorene, also known as diphenylenemethane or 9h-fluorene, is a member of the class of compounds known as fluorenes.
Fluorenes are compounds containing a fluorene moiety, which consists of two benzene rings connected through either a cyclopentane, cyclopentene, or cyclopenta-1,3-diene.
Fluorene is practically insoluble (in water) and an extremely weak acidic compound (based on its pKa).
Fluorene can be found in corn, which makes fluorene a potential biomarker for the consumption of this food product.
Fluorene is formally rated as an unfounded non-carcinogenic (IARC 3) potentially toxic compound.
Fluorene , or 9H-fluorene, is a polycyclic aromatic hydrocarbon.
Fluorene forms white crystals that exhibit a characteristic, aromatic odor similar to that of naphthalene.
Fluorene is combustible.
Fluorene has a violet fluorescence, hence its name. For commercial purposes it is obtained from coal tar.
Fluorene is insoluble in water and soluble in many organic solvents.
Formula: C17H12
Molecular mass: 216.3
Boiling point: 399°C
Melting point: 189°C
Solubility in water: very poor
Octanol/water partition coefficient as log Pow: 5.32
About Fluorene
Helpful information
Fluorene is registered under the REACH Regulation and is manufactured in and / or imported to the European Economic Area, for intermediate use only.
Fluorene is used at industrial sites.
Consumer Uses
ECHA has no public registered data indicating whether or in which chemical products the substance might be used. ECHA has no public registered data on the routes by which Fluorene is most likely to be released to the environment.
Article service life
ECHA has no public registered data on the routes by which Fluorene is most likely to be released to the environment. ECHA has no public registered data indicating whether or into which articles the substance might have been processed.
Widespread uses by professional workers
ECHA has no public registered data indicating whether or in which chemical products the substance might be used. ECHA has no public registered data on the types of manufacture using Fluorene. ECHA has no public registered data on the routes by which Fluorene is most likely to be released to the environment.
Formulation or re-packing
ECHA has no public registered data indicating whether or in which chemical products the substance might be used. ECHA has no public registered data on the routes by which Fluorene is most likely to be released to the environment.
Uses at industrial sites
ECHA has no public registered data indicating whether or in which chemical products the substance might be used. Fluorene is used for the manufacture of: chemicals.
Release to the environment of Fluorene can occur from industrial use: as an intermediate step in further manufacturing of another substance (use of intermediates).
Manufacture
ECHA has no public registered data on the routes by which Fluorene is most likely to be released to the environment.
Fluorene can be an intermediate in several chemical processes, and it is used to form polyradicals for resins and in manufacturing dyestuffs.
Fluorene is frequently detected in the vapor phase of various PAH emission sources, including coal tar pitch, petroleum refineries, diesel exhaust fumes, and tobacco smoke, where it is the second most abundant PAH (Ding et al., 2005). Fluorene is present in air particulates resulting from vehicle emissions and combustion of coal and petroleum-based fuels.
Fluorene is a colorless crystalline cyclic hydrocarbon C13H10 that has a violet fluorescence and that is obtained usually from the coal-tar distillate which boils between naphthalene and anthracene; ortho-diphenylene-methane.
Specifications:
Color: White-Yellow
Melting Point: 236°C
Quantity: 25g
Formula Weight: 348.45
Physical Form: Crystal-Powder at 20°C
Percent Purity: ≥98.0% (T)
Chemical Name or Material: 9,9-Bis(4-aminophenyl)fluorene
Fluorene is a white, crystalline, water-insoluble solid, C13H10, used chiefly in the manufacture of resins and dyes.
Fluorene, a tricyclic aromatic hydrocarbon, contains a five-membered ring.
Fluorene is a major component of fossil fuels and their derivatives and is also a byproduct of coal-conversion and energy-related industries.
Fluorene is commonly found in vehicle exhaust emissions, crude oils, motor oils, coal and oil combustion products, waste incineration, and industrial effluents.
Fluorene or 9H-fluorene for your Benflumetol (Lumefantrine) production.
Fluorene is a polycyclic aromatic hydrocarbon.
Fluorene forms white crystals that exhibit a characteristic, aromatic odor similar to that of naphthalene.
Use
Is the raw material of synthetic medicine, pesticide, dye, engineering plastics.
Fluorene is synthetic dyes, pharmaceuticals, pesticides, engineering plastics, impact organic glass and other raw materials. Trinitrofluorenone was synthesized for xerography, and aryl transparent nylon was synthesized. Fluorene can be used instead of anthraquinone synthesis of Yin danshilin dye; Manufacturing spasm-inhibiting drugs, sedatives, analgesics, hypotensive drugs; Synthetic insecticides, herbicides; Impact organic glass and fluorene aldehyde resin; Can also be used for wetting agent, detergent, liquid scintillators, disinfectants, etc.
Chemical Properties
Fluorene, when pure, is found as dazzling white flakes or small, crystalline plates.
Fluorene is fluorescent when impure. Polycyclic aromatic hydrocarbons (PAHs) are compounds containing multiple benzene rings and are also called polynuclear aromatic hydrocarbons.
Chemical Properties
white crystals
Physical properties
Small white leaflets or crystalline flakes from ethanol. Fluorescent when impure.
Uses
Polycyclic aromatic hydrocarbons as micropollutants.
Definition
ChEBI: An ortho-fused tricyclic hydrocarbon that is a major component of fossil fuels and their derivatives
Fluorene is used in the preparation of dyes such as 2,7-diiodofluorene, 2-aminofluorene and 3,6-bis-(dimethylamino)fluorine as well as resins.
Fluorene acts as a precursor to other fluorene compounds and to prepare fluorenone.
Fluorene is utilized in the study of the extraction of specific semiconducting single-wall carbon nanotubes.
Fluorenes polymer, polyfluorene finds application in electrically conductive and electroluminescent as well as in solar cells. In addition to this, it is used as a luminophore inorganic light-emitting diodes.
Use
1. Fluorene is used to make trinitrofluorenone for xerographic
2. Fluorene is used to synthesize aryl transparent nylon
3. Fluorene is used to synthesize indanthrene dye
4. Fluorene is used to make anticonvulsants, sedatives, analgesics, hypotensive drugs
5. Fluorene is used for the synthesis of pesticides, herbicides
6. Fluorene is used for the preparation of impact resistant plexiglass and furfural resin
7. Fluorene is used as a wetting agent, detergent, liquid glitter agent and disinfectant.
Fluorene is used to produce fluorenone, lumefantrine, 2,7-Dichlorofluorene (2,7-dichloro-9H-fluorene), and also used to make pharmaceuticals, dye intermediate ,synthetic pesticides, herbicides and so on.
IUPAC names:
9H-Fluorene
9H-fluorene
9H-Fluorene
Fluorene
fluorene
Fluorene
fluorene
SYNONYMS:
1363491 [Beilstein]
201-695-5 [EINECS]
86-73-7 [RN]
9H-Fluoren [German] [ACD/IUPAC Name]
9H-Fluorene [ACD/Index Name] [ACD/IUPAC Name]
9H-Fluorène [French] [ACD/IUPAC Name]
Fluorene [Wiki]
MFCD00001111 [MDL number]
&α;-diphenylenemethane-9H-fluorene
(2S)-6-amino-2-(phenylmethoxycarbonylamino)hexanethioic acid S-(phenylmethyl) ester
158140-08-0 [RN]
2,2'-Methylenebiphenyl
2,3-benzindene
2,3-BENZOINDENE
201-695-5MFCD00001111
2-21-METHYLENBIPHENYL
40870-59-5 [RN]
81103-79-9 [RN]
9H-FLUOREN-9-YL
9H-fluorene (en)
9H-Fluorene|2,2'-Methylenebiphenyl
Diphenylenemethane
Flourene
FLUOREN
Fluorene 10 µg/mL in Acetonitrile
Fluorene 10 µg/mL in Cyclohexane
Fluorene 10 µg/mL in Acetonitrile
Fluorene 10 µg/mL in Cyclohexane
Fluorene 100 µg/mL in Acetonitrile
Fluorene 100 µg/mL in Acetonitrile
Fluorene 100 µg/mL in Methanol
fluorene standard
fluorene, reagent
Fluorene-13C6
Fluorene-d10
https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:28266
Methane, diphenylene-
o-biphenylenemethane
o-biphenylmethane
ortho-Biphenylenemethane
para-Biphenylmethane
p-Biphenylmethane
STR04556
