1,4-Benzenedicarboxylic acid bis(4-aminophenyl) ester Bulk Supply for Industrial Use
China Factory Direct
 |
|
| CAS number | 16926-73-1 |
| Product name | 1,4-Benzenedicarboxylic acid bis(4-aminophenyl) ester |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial Grade |
| Packaging | 25KG/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) |
QUOTE TYPE
PACKAGING TYPE
TOTAL QUANTITY(KG)
PREFERRED SHIPPING METHOD
YOUR COMPANY
YOUR E-MAIL
Calculate Summary
Based on current marketvolatility and material availability.
Documents We Provide for 1,4-Benzenedicarboxylic acid bis(4-aminophenyl) ester
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 1,4-Benzenedicarboxylic acid bis(4-aminophenyl) ester Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 1,4-Benzenedicarboxylic acid bis(4-aminophenyl) ester
| Industry | Application | Process |
|---|---|---|
| Polymers | Chain extender for polyester-based polyurethanes | Reacts with diisocyanates to form polyurethane prepolymers, followed by curing and shaping |
| Fiber Industry | Intermediate for high-performance aramid fiber synthesis | Undergoes condensation polymerization with terephthalic acid or its derivatives to form aromatic polyester structures |
| Coatings Industry | Crosslinker for heat- and chemical-resistant coatings | Copolymerizes with polyols and isocyanates to form a crosslinked network structure |
| Adhesives | Used in the production of high-temperature-stable structural adhesives | Reacts with isocyanates in solvent to produce high-molecular-weight thermosetting resins |
Manufacturing Quality Control of 1,4-Benzenedicarboxylic acid bis(4-aminophenyl) ester
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification by comparison of peak area against a certified reference standard using reversed-phase chromatography and UV detection at 254 nm. |
| Moisture Content | Karl Fischer Titration | Volumetric or coulometric titration based on the reaction of water with iodine, sulfur dioxide, and base in methanol/pyridine medium. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, indicating purity and identity via thermal behavior. |
| Residue on Ignition | Gravimetric Analysis (Weight Loss on Ignition) | Measurement of non-volatile inorganic residue after high-temperature ashing at 700-800 C. |
| Heavy Metals (as Pb) | AAS (Flame or Graphite Furnace) | Atomic absorption spectroscopy quantifies metal content by measuring absorbance of ground-state atoms in flame or graphite furnace. |
| Chloride Impurity | Ion Chromatography (IC) | Separation and quantification of chloride anions using ion-exchange column and suppressed conductivity detection. |
| Sulfate Impurity | Barium Sulfate Gravimetry | Precipitation of sulfate as BaSO4 under acidic conditions followed by filtration and weighing of dried precipitate. |
| Related Substances | HPLC-DAD | Identification and quantification of structurally similar impurities using diode-array detection and retention time matching. |
| Color (APHA) | Visual Comparison or Spectrophotometric Method | Measurement of yellowness index by comparing sample solution color to platinum-cobalt standard solutions. |
| Bulk Density | USP <616> Tap Density Method | Determination of mass per unit volume after controlled tapping of a known powder mass in a graduated cylinder. |
| Particle Size Distribution | Laser Diffraction | Analysis of particle size based on angular variation in intensity of scattered laser light through dispersed sample. |
| Residual Solvents | GC-FID | Quantification of volatile organic solvents by gas chromatography with flame ionization detection using headspace sampling. |
Technical Specifications of 1,4-Benzenedicarboxylic acid bis(4-aminophenyl) ester
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 225-230°C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
|
|
Download COA of 1,4-Benzenedicarboxylic acid bis(4-aminophenyl) ester
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 1,4-Benzenedicarboxylic acid bis(4-aminophenyl) ester
Safety Information of 1,4-Benzenedicarboxylic acid bis(4-aminophenyl) ester
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 1,4-Benzenedicarboxylic acid bis(4-aminophenyl) ester
Industrial 1,4-Benzenedicarboxylic acid bis(4-aminophenyl) ester 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.
Use Bulk
Supply Factory
Direct ISO 9001
Certified Samples
Available Stable
Supply