4-ETHYNYLANILINE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 14235-81-5 |
| Product name | 4-ETHYNYLANILINE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeElectronic 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) |
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Documents We Provide for 4-ETHYNYLANILINE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-ETHYNYLANILINE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-ETHYNYLANILINE
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Intermediates | Synthesis of active pharmaceutical ingredients (APIs), including antitumor agents and kinase inhibitors | Introduction of alkynyl groups via palladium-catalyzed coupling reactions (e.g., Sonogashira coupling) to construct targeted molecular scaffolds |
| Organic Optoelectronic Materials | Preparation of hole-transport layers for organic light-emitting diodes (OLEDs) and monomers for conjugated polymers | Use as alkynyl-containing aromatic amine monomers in Stille or Suzuki coupling polymerizations, or direct application in click chemistry modifications |
| Agrochemical R&D | Structural building blocks for novel nitrogen-containing heterocyclic insecticides and plant growth regulators | Construction of heterocyclic cores (e.g., triazoles, pyrimidines) via cycloaddition (e.g., CuAAC with azides) or electrophilic substitution |
| Polymer Science | Production of high-temperature-resistant polyimides, polyarylates, and crosslinkable functional resins | Use as diamine monomers in condensation polymerization with dianhydrides; or thermal-initiated crosslinking and thiol–alkyne click curing leveraging the acetylenic functionality |
Manufacturing Quality Control of 4-ETHYNYLANILINE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification using reversed-phase HPLC with UV detection at 254 nm, comparing peak area to a certified reference standard. |
| Water Content | Karl Fischer Titration | Electrochemical titration measuring water via iodine-sulfur dioxide reaction in pyridine-methanol solvent system. |
| Residue on Ignition | Gravimetric Analysis | Heating sample to 700-800 C in a platinum crucible and weighing inorganic residue after complete combustion. |
| Heavy Metals | ICP-OES | Multi-element quantification of Pb, Cd, Hg, As, and others by plasma excitation and optical emission spectroscopy. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride anion using suppressed conductivity detection with carbonate eluent. |
| Sulfate Impurity | Turbidimetric Method | Reaction with barium chloride under acidic conditions to form BaSO4 precipitate, measured by light scattering. |
| Melting Point | Capillary Melting Point Apparatus | Thermal determination of solid-to-liquid transition range using calibrated capillary tube method per USP <741>. |
| Color | APHA Color Scale | Visual or spectrophotometric comparison of solution color against platinum-cobalt standards. |
| Organic Volatile Impurities | GC-FID | Separation and quantification of residual solvents (e.g., acetone, methanol) using flame ionization detection. |
| Acidity/Alkalinity | Acid-Base Titration | Titration with standardized NaOH or HCl to determine free acid or base content based on pH endpoint. |
| Particle Size Distribution | Laser Diffraction | Analysis of dry powder dispersion using Mie scattering theory to calculate size distribution. |
| Bulk Density | Graduated Cylinder Method | Measurement of mass per unit volume for freely settled powder in a calibrated cylinder per ASTM D1895. |
Technical Specifications of 4-ETHYNYLANILINE
| Test Item | Specification |
|---|---|
| Appearance | Brown granules |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 72–76°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Conforms to reference standard |
| Identification (IR) | Conforms to reference standard |
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-ETHYNYLANILINE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-ETHYNYLANILINE
Packaging of 4-ETHYNYLANILINE
Industrial 4-ETHYNYLANILINE 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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