4,4'-Bis(4-aminophenoxy)biphenyl Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 13080-85-8 |
| Product name | 4,4'-Bis(4-aminophenoxy)biphenyl |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Electronic GradeMaterial Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for 4,4'-Bis(4-aminophenoxy)biphenyl
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4,4'-Bis(4-aminophenoxy)biphenyl Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4,4'-Bis(4-aminophenoxy)biphenyl
| Industry | Application | Process |
|---|---|---|
| Polymers | Monomer for high-performance polyimide resins | Used in condensation polymerization with dianhydrides (e.g., PMDA, BPDA) to produce polyimide films, fibers, or molding compounds for flexible circuit substrates and high-temperature insulation materials |
| Electronics | Dielectric layer material for flexible printed circuit boards (FPCs) | Processed into films via solution casting followed by thermal imidization, delivering excellent thermal stability (Tg > 350 °C), low dielectric constant (< 3.2), and dimensional stability |
| Aerospace | Matrix resin for high-temperature structural composites | Employed as a diamine component in copolymerization with aromatic dianhydrides; carbon-fiber-reinforced polyimide composites are fabricated via hot-press molding for engine components and airframe thermal protection structures |
| Liquid Crystal Displays (LCDs) | Polyimide precursor for alignment layers | Coated onto ITO glass substrates via photolithography or rubbing alignment processes; thermal imidization yields stable liquid crystal anchoring and high voltage holding ratio |
Manufacturing Quality Control of 4,4'-Bis(4-aminophenoxy)biphenyl
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reversed-phase HPLC with UV detection at 254 nm, comparing peak area against a certified reference standard. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration based on the reaction of iodine with water in a methanol-based reagent, measuring endpoint potentiometrically. |
| Residue on Ignition | Gravimetric Analysis | Heating sample to 750 C in a platinum crucible, followed by weighing of non-volatile inorganic residue after cooling in a desiccator. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification of trace metals after acid digestion, using plasma excitation and optical emission detection. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride anions on an anion-exchange column with suppressed conductivity detection. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, observed visually under controlled heating rate. |
| Organic Volatile Impurities | GC-FID | Separation and quantification of residual solvents using capillary GC with flame ionization detection. |
| Color (APHA) | Visual Comparison or Spectrophotometer | Measurement of yellowness index via absorbance at 430 nm in a 10% w/v solution in dimethylformamide. |
| Acid Value | Acid-Base Titration | Neutralization of acidic impurities with standardized potassium hydroxide solution using phenolphthalein indicator. |
| Ash Content | Gravimetric Analysis | Incineration at 550 C to remove organic matter, followed by weighing of inorganic residue. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity patterns to calculate size distribution of dry powder particles. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light passing through a solution in a standardized cell at specified wavelength and temperature. |
Technical Specifications of 4,4'-Bis(4-aminophenoxy)biphenyl
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (by LC-MS) |
| Melting Point | 245–249 °C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Identification (IR) | Consistent with structure |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of 4,4'-Bis(4-aminophenoxy)biphenyl
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4,4'-Bis(4-aminophenoxy)biphenyl
Safety Information of 4,4'-Bis(4-aminophenoxy)biphenyl
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 4,4'-Bis(4-aminophenoxy)biphenyl
Industrial 4,4'-Bis(4-aminophenoxy)biphenyl Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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