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
- Molecular Weight:
- 194.27
- MDL Number:
- MFCD00114670
- MOL File:
- 4569-45-3.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| 9,9-Dimethylfluorene >98.0%(GC) | D3235 | 1g | $67 |
| 9,9-Dimethylfluorene >98.0%(GC) | D3235 | 5g | $196 |
| 9,9-Dimethylfluorene (purified by sublimation) >99.0%(GC) | D3810 | 1g | $71 |
| 9,9-Dimethyl-9H-fluorene | D477768 | 100mg | $60 |
| 9,9-Dimethylfluorene (purified by sublimation) | FD62946 | 2g | $50 |
| More product size | |||
| 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.) |
| Major Application | battery manufacturing |
| InChI | InChI=1S/C15H14/c1-15(2)13-9-5-3-7-11(13)12-8-4-6-10-14(12)15/h3-10H,1-2H3 |
| InChIKey | ZHQNDEHZACHHTA-UHFFFAOYSA-N |
| SMILES | C1(C)(C)C2=C(C=CC=C2)C2=C1C=CC=C2 |
| CAS DataBase Reference | 4569-45-3(CAS DataBase Reference) |
| FDA UNII | RFQ75I78LQ |
| NIST Chemistry Reference | 9H-Fluorene, 9,9-dimethyl-(4569-45-3) |
| UNSPSC Code | 12352401 |
| NACRES | NA.23 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319 | |||||||||
| Precautionary statements | P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313 | |||||||||
| Risk Statements | 20/21/22-36/37/38 | |||||||||
| Safety Statements | 26-37/39 | |||||||||
| WGK Germany | WGK 3 | |||||||||
| HS Code | 2902.90.9000 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Acute Tox. 4 Oral Aquatic Chronic 2 |
|||||||||
| NFPA 704 |
|
9,9-Dimethylfluorene price More Price(18)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | D3235 | 9,9-Dimethylfluorene >98.0%(GC) | 4569-45-3 | 1g | $67 | 2026-04-30 | Buy |
| TCI Chemical | D3235 | 9,9-Dimethylfluorene >98.0%(GC) | 4569-45-3 | 5g | $196 | 2026-04-30 | Buy |
| TCI Chemical | D3810 | 9,9-Dimethylfluorene (purified by sublimation) >99.0%(GC) | 4569-45-3 | 1g | $71 | 2026-04-30 | Buy |
| TRC | D477768 | 9,9-Dimethyl-9H-fluorene | 4569-45-3 | 100mg | $60 | 2021-12-16 | Buy |
| Biosynth Carbosynth | FD62946 | 9,9-Dimethylfluorene (purified by sublimation) | 4569-45-3 | 2g | $50 | 2021-12-16 | Buy |
9,9-Dimethylfluorene Chemical Properties,Uses,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
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20124 | 58 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-2158073036 | info@dakenam.com | China | 13843 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21590 | 55 |
| China Synchem Technology Co.,Ltd. | +86-0552-4929304 +86-18055277008 | wangxuhui1985@126.com | China | 65 | 55 |
| AB PharmaTech,LLC | 323-480-4688 | sales@acrospharmatech.com | United States | 989 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29819 | 58 |
| SHAANXI WEISHINUO THE NEW MATERIALCO,.LTD | 18792503214 | Beryl@weishino.com | CHINA | 256 | 58 |
| BAYNOE CHEM CO.,LTD | +86-21-34783353 +8615000719740 | baynoe@baynoe.com | CHINA | 934 | 58 |
| Alchem Pharmtech,Inc. | 8485655694 | sales@alchempharmtech.com | United States | 63687 | 58 |
View Lastest Price from 9,9-Dimethylfluorene manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-03-20 | 9,9-Dimethyl-9H-fluorene
4569-45-3
|
US $0.00-0.00 / KG | 1KG | 99% | 20 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
 |
2025-11-18 | 9,9-Dimethyl-9H-fluorene
4569-45-3
|
US $1.10 / g | 1g | 99.00% | 100 Tons | Dideu Industries Group Limited | |
 |
2025-09-25 | 9,9-Dimethylfluorene
4569-45-3
|
US $200.00-1.00 / KG | 1KG | 99%, 99.5% Sublimated | g-kg-tons, free sample is available | Henan Fengda Chemical Co., Ltd |
-
- 9,9-Dimethyl-9H-fluorene
4569-45-3
- US $0.00-0.00 / KG
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-
- 9,9-Dimethyl-9H-fluorene
4569-45-3
- US $1.10 / g
- 99.00%
- Dideu Industries Group Limited
-
- 9,9-Dimethylfluorene
4569-45-3
- US $200.00-1.00 / KG
- 99%, 99.5% Sublimated
- Henan Fengda Chemical Co., Ltd
4569-45-3(9,9-Dimethylfluorene)Related Search:
1of4
