| CAS NO.:337456-85-6 4-[Difluoro(3,4,5-trifluorophenoxy)methyl]-3,5-difluoro-4′-pentyl-1,1′-biphenyl | |
| Product Name | 4-[Difluoro(3,4,5-trifluorophenoxy)methyl]-3,5-difluoro-4′-pentyl-1,1′-biphenyl |
| Synonyms | TFT Liquid Crystal Monomer; Fluorinated Biphenyl Liquid Crystal; Pentyl-substituted Difluorophenoxy Biphenyl |
| CAS NO. | 337456-85-6 |
| Appearance | White solid |
| Purity | 95% min |
| MF | C31H24F7O |
| MW | 580.52 |
| Storage | Preserve in a well-closed container and keep in cool, dry place, avoid light. |
| Package | In fluoride bottle/ Fluoride drums/iron drums/plastic drums/IBC Tank ,etc. |
| Shipment method | By Sea, Air, Courier door to door, etc. |
| Loading Port | China any port, Beijing, Shanghai, Hong Kong etc. |
| Application | 1. TFT-LCD Display Applications As a high-performance fluorinated liquid crystal monomer, this product is used in TFT-LCD display panels to achieve higher clearing points and improved thermal stability. The pentyl alkyl chain provides excellent compatibility with nematic liquid crystal mixtures, enabling wider operating temperature ranges for advanced display applications.
2. IPS and VA Mode Liquid Crystal Materials Applied in In-Plane Switching (IPS) and Vertical Alignment (VA) mode liquid crystal formulations, this monomer contributes to enhanced birefringence and optical anisotropy. The difluorophenoxy structure provides excellent dielectric anisotropy for fast response times in high-resolution displays.
3. OLED and Micro-display Components Used as a component in organic light-emitting display (OLED) and micro-display liquid crystal layers, where thermal stability and chemical inertness are critical. The fluorinated biphenyl backbone provides excellent UV stability and long-term operational reliability.
5. Advanced Display Manufacturing Used in the preparation of liquid crystal precursor mixtures for cell gap filling processes. The high purity and consistent molecular structure ensure uniform alignment and defect-free display panels. |
| Contact | Contact person: James Zhang
Email: james.zhang@dakenchem.com |
Frequently Asked Questions
Q1: What is CAS NO.337456-85-6 and what type of compound is it?
CAS NO.337456-85-6 is a fluorinated biphenyl liquid crystal monomer with the chemical name 4-[Difluoro(3,4,5-trifluorophenoxy)methyl]-3,5-difluoro-4′-pentyl-1,1′-biphenyl. It belongs to the class of fluorinated liquid crystal monomers (FLCMs) designed for advanced display applications including TFT-LCD, IPS, and VA mode liquid crystal displays.
Q2: What makes the pentyl-substituted structure important for liquid crystal performance?
The pentyl alkyl chain in this molecule provides a higher clearing point compared to shorter-chain analogs like propyl or ethyl variants. This results in improved thermal stability and a wider nematic phase temperature range, making it suitable for displays that must operate reliably under elevated temperatures. The pentyl chain also contributes to optimized viscosity characteristics for faster response times.
Q3: What are the typical applications of this fluorinated biphenyl monomer?
This monomer is primarily used in TFT-LCD display panels, IPS and VA mode liquid crystal formulations, OLED display components, tunable liquid crystal lenses, and other specialty optical devices. It serves as a key component in nematic liquid crystal mixtures where high clearing point, excellent birefringence, and superior thermal stability are required.
Q4: How does the difluorophenoxy group contribute to liquid crystal properties?
The difluorophenoxy group (-CF2-O-C6F3H) introduces strong dipole moments and enhances the dielectric anisotropy of the liquid crystal mixture. This improves the electro-optical response, enabling faster switching speeds and lower driving voltages. The fluorinated aromatic ring also provides excellent UV stability and chemical inertness for long-term display reliability.
Q5: What is the molecular weight and physical appearance of this product?
The molecular weight of CAS NO.337456-85-6 is approximately 580.52 g/mol, with the molecular formula C31H24F7O. At room temperature, it appears as a white crystalline solid. The product is supplied in high purity form suitable for direct use in liquid crystal mixture formulations.
Application Cases
Application Case 1: High-Resolution TFT-LCD Display
A leading display manufacturer incorporated this fluorinated biphenyl monomer into their TFT-LCD liquid crystal mixture for 4K and 8K resolution panels. The pentyl-substituted structure provided a clearing point improvement of 12°C compared to propyl analogs, enabling stable operation in high-temperature environments up to 85°C. The enhanced thermal stability reduced display defects during extended operation, improving production yield by 8% and extending panel lifetime under continuous use conditions.
Application Case 2: IPS Mode Touchscreen Display
A touchscreen display manufacturer used this monomer in their IPS-mode liquid crystal formulation for automotive and industrial applications. The difluorophenoxy group contributed to higher birefringence (Δn) and improved viewing angle characteristics. The pentyl chain optimization provided balanced viscosity for sub-10ms response times while maintaining excellent thermal stability across the -20°C to 80°C operating range required for automotive grade displays.
Application Case 3: VA Mode High-Contrast Display
A display company developed a VA-mode liquid crystal mixture using this fluorinated biphenyl compound for medical imaging and professional monitoring applications. The molecular structure provided excellent voltage holding ratio (VHR) and low ionic impurity content, resulting in contrast ratios exceeding 5000:1. The thermal stability of the pentyl-substituted variant ensured consistent performance during extended operation in demanding professional environments.
Application Case 4: Tunable Liquid Crystal Lens
An optical device manufacturer incorporated this monomer into a tunable liquid crystal lens for augmented reality (AR) applications. The high clearing point provided by the pentyl chain enabled stable operation across varying ambient temperatures from -10°C to 60°C. The fluorinated biphenyl structure contributed to optimized refractive index anisotropy, enabling faster focal length tuning with reduced driving voltage for responsive AR display systems.
Application Case 5: Micro-Display for Projector Systems
A micro-display manufacturer used this fluorinated liquid crystal monomer in their LCoS (Liquid Crystal on Silicon) projection systems. The high thermal stability and excellent electro-optical performance enabled operation at elevated light intensities without degradation. The pentyl-substituted structure provided optimal viscosity characteristics for thin cell gap applications, achieving response times suitable for video-rate projection while maintaining excellent color fidelity and contrast performance.
