4-Ethynyltoluene Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 766-97-2 |
| Product name | 4-Ethynyltoluene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| 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-Ethynyltoluene
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Ethynyltoluene Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Ethynyltoluene
| Industry | Application | Process |
|---|---|---|
| Organic Synthesis | Intermediate for the preparation of liquid crystal materials, conjugated polymers, and functional dyes | Participates in palladium-catalyzed coupling reactions (e.g., Sonogashira coupling) with aryl halides or pseudohalides |
| Pharmaceutical R&D | Construction of bioactive molecular scaffolds containing alkyne functionalities | Serves as an alkyne donor in click chemistry (CuAAC) or transition metal-catalyzed C–C bond formation reactions |
| Materials Science | Synthesis of optoelectronic functional materials (e.g., OLED emissive layers, organic semiconductors) | Forms extended π-conjugated systems via cycloaddition of terminal alkynes with azides or Glaser coupling with aldehydes/ketones |
Manufacturing Quality Control of 4-Ethynyltoluene
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantifies 4-tolylacetylene peak area against calibrated standard; separation based on volatility and polarity. |
| Water Content | Karl Fischer Titration | Electrochemical titration where iodine reacts stoichiometrically with water in anhydrous methanol/pyridine medium. |
| Residue on Ignition | Gravimetric Analysis | Measures non-volatile inorganic residue after controlled high-temperature ashing of sample. |
| Acidity (as Acetic Acid) | Acid-Base Titration with NaOH | Neutralization of acidic impurities using standardized sodium hydroxide solution and phenolphthalein indicator. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantifies metal concentration by measuring absorption of specific wavelength light by ground-state atoms in flame. |
| Chloride Content | Potentiometric Titration with AgNO3 | Detects chloride ions via silver nitrate titration using silver electrode to monitor endpoint potential change. |
| Appearance | Visual Inspection | Assessment of physical state, color, and clarity under controlled white-light conditions against reference standards. |
| Melting Point | Capillary Melting Point Determination | Measures temperature range at which solid transitions to liquid using calibrated capillary apparatus. |
| Refractive Index | Refractometry | Determines ratio of light velocity in air vs. sample at specified temperature using Abbe refractometer. |
| UV Absorbance at 280 nm | UV-Vis Spectrophotometry | Measures absorbance intensity at characteristic wavelength to detect conjugated impurities or degradation products. |
| Residual Solvents (e.g., THF, acetone) | Headspace Gas Chromatography (HS-GC) | Quantifies volatile organic solvents by analyzing vapor phase above heated sample vial. |
| Specific Gravity | Pycnometry | Determines density relative to water at 20/20 degC using calibrated glass pycnometer. |
Technical Specifications of 4-Ethynyltoluene
| Test Item | Specification |
|---|---|
| Appearance | Clear yellow liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Refractive Index (n20/D) | 1.545–1.555 |
| Relative Density (20°C/25°C) | 0.965–0.975 g/cm³ |
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-Ethynyltoluene
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Ethynyltoluene
Packaging of 4-Ethynyltoluene
Industrial 4-Ethynyltoluene 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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