9,9-Dimethylfluorene
- Product Name
- 9,9-Dimethylfluorene
- CAS No.
- 4569-45-3
- Chemical Name
- 9,9-Dimethylfluorene
- Synonyms
- 9,9-DIMETHYLFLUORENE;9H-Fluorene, 9,9-dimethyl-;9,9-Dimethyl-9H-fluo;9,9'-Dimethylfluorenee;9,9- two Methylfluorene;9,9-dimethyl-fluororene;9,9-Dimethylfluorene>9,9-Dimethyl-9H-fluoren;9,9-Dimethyl-9H-fluorene;9,9-DiMethyl-9H-fluoreneV
- CBNumber
- CB2146845
- Molecular Formula
- C15H14
- Formula Weight
- 194.27
- MOL File
- 4569-45-3.mol
9,9-Dimethylfluorene Property
- Melting point:
- 96°C
- Boiling point:
- 287 °C
- Density
- 1.040±0.06 g/cm3(Predicted)
- storage temp.
- Sealed in dry,Room Temperature
- form
- powder to crystal
- color
- White to Almost white
- λmax
- 301nm(EtOH)(lit.)
- InChIKey
- ZHQNDEHZACHHTA-UHFFFAOYSA-N
- CAS DataBase Reference
- 4569-45-3(CAS DataBase Reference)
- NIST Chemistry Reference
- 9H-Fluorene, 9,9-dimethyl-(4569-45-3)
Safety
- Risk Statements
- 20/21/22-36/37/38
- Safety Statements
- 26-37/39
- HS Code
- 2902.90.9000
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
- Precautionary statements
-
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P332+P313IF SKIN irritation occurs: Get medical advice/attention.
P337+P313IF eye irritation persists: Get medical advice/attention.
N-Bromosuccinimide Price
- Product number
- D3235
- Product name
- 9,9-Dimethylfluorene
- Purity
- >98.0%(GC)
- Packaging
- 1g
- Price
- $67
- Updated
- 2024/03/01
- Product number
- D3235
- Product name
- 9,9-Dimethylfluorene
- Purity
- >98.0%(GC)
- Packaging
- 5g
- Price
- $196
- Updated
- 2024/03/01
- Product number
- D3810
- Product name
- 9,9-Dimethylfluorene (purified by sublimation)
- Purity
- >99.0%(GC)
- Packaging
- 1g
- Price
- $112
- Updated
- 2024/03/01
- Product number
- D477768
- Product name
- 9,9-Dimethyl-9H-fluorene
- Packaging
- 100mg
- Price
- $60
- Updated
- 2021/12/16
- Product number
- FD62946
- Product name
- 9,9-Dimethylfluorene (purified by sublimation)
- Packaging
- 2g
- Price
- $50
- Updated
- 2021/12/16
9,9-Dimethylfluorene Chemical Properties,Usage,Production
Uses
This product offered here allows an ambient-air-tolerant method for negative electrode prelithiation prior to assembly of Li ion batteries. The redox potential of this product makes it useful for those most reported negative electrodes including Si with high capacities and short processing time. It could not only compensate for the initial active lithium loss, but also enable the pairing with high-capacity lithium-free positive electrodes (e.g. sulfur, oxygen, V2O5 etc.) th at requires the supply of Li source from the negative electrode to configure Li ion batteries with high energy densities.
Recommended instructions (this should be a separate document):Soak your electrode with the anode material coated on a copper current collector in this prelithiation reagent for a set amount of time. Discard the solution and then wash your electrode twice with THF. For a 1cm diameter electrode with 1∼3 mg acitve material per cm2, use 0.5∼1 mL of prelithiation solution will be enough. You can use an empty coin cell casing as the treatment vessel. Electrode soaking time is important and may need to be optimized for your application. A good time to try is ∼10 min. Longer prelithiation time may cause eletrode structure deformation, leading to a decreased discharge/charge capacity.
Definition
9,9-Dimethylfluorene is an organic electroluminescent material intermediate. The fluorene derivative is a kind of organic electroluminescent material commercialized at present, wherein 9, 9-dimethyl fluorene is an essential intermediate for synthesizing OLED material.
Synthesis
The method comprises taking dimethyl carbonate as a methylating agent under alkaline substances and reacting with fluorene in an organic solvent system within a certain temperature range to prepare the 9,9-Dimethylfluorene. The method uses dimethyl carbonate as a methylating agent so that the reaction process is stabilized and the economy is greatly improved; meanwhile, the use of dimethyl carbonate avoids the use of low-boiling-point hypertoxic such as methyl iodide, methyl bromide, and the like, is environment-friendly, and the generated wastewater has single component and is convenient to treat.
9,9-Dimethylfluorene Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 9,9-Dimethylfluorene manufacturers
- Product
- 9,9-Dimethyl-9H-fluorene 4569-45-3
- Price
- US $0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 50000KG/month
- Release date
- 2023-07-28
- Product
- 9,9-Dimethyl-9H-fluorene 4569-45-3
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 20 mt
- Release date
- 2024-12-02
- Product
- 9,9-Dimethylfluorene 4569-45-3
- Price
- US $200.00-1.00/KG
- Min. Order
- 1KG
- Purity
- 99%, 99.5% Sublimated
- Supply Ability
- g-kg-tons, free sample is available
- Release date
- 2023-12-30