3-Ethynyltoluene Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 766-82-5 |
| Product name | 3-Ethynyltoluene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeIndustrial Grade |
| Packaging | 25L/drum |
| 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 3-Ethynyltoluene
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 3-Ethynyltoluene Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 3-Ethynyltoluene
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Used as a synthetic intermediate in the preparation of active pharmaceutical ingredients, including antidepressants and anticancer agents | Participates in multistep organic synthesis via Sonogashira coupling or alkyne functional group transformations |
| Agrochemicals | Used to synthesize alkyne-containing insecticide or herbicide precursors | Constructs target molecular frameworks through coupling with heterocyclic compounds |
| Materials Science | Used in the synthesis of monomers for conjugated polymers or organic optoelectronic materials | Builds π-conjugated systems via catalytic coupling reactions |
| Organic Synthesis | Serves as a building block for introducing phenylacetylene structural units into complex molecules | Leverages the acidity of the terminal alkyne proton for metalation or direct participation in cross-coupling reactions |
Manufacturing Quality Control of 3-Ethynyltoluene
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) | Separation and quantification based on volatility and interaction with stationary phase using flame ionization detection. |
| Water Content | Karl Fischer Titration | Electrochemical titration where iodine reacts stoichiometrically with water in a methanol-based solvent system. |
| Residue on Evaporation | Gravimetric Analysis | Evaporation of a known sample mass under controlled conditions followed by weighing of non-volatile residue. |
| Acidity (as Acetic Acid) | Acid-Base Titration | Neutralization of acidic impurities with standardized sodium hydroxide solution using phenolphthalein indicator. |
| Color (APHA) | Visual Comparison or Spectrophotometry | Comparison of sample color against platinum-cobalt standard solutions or measurement of absorbance at 455 nm. |
| Density at 20 C | Digital Density Meter | Measurement of mass per unit volume using oscillating U-tube principle with temperature control. |
| Refractive Index at 20 C | Refractometry | Determination of light bending angle at air-sample interface using calibrated prism instrument. |
| Boiling Point Range | Distillation (Micro or Macro) | Fractional distillation under reduced pressure to determine onset and end temperatures of vaporization. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of metal impurities after acid digestion by measuring absorption of characteristic wavelength radiation. |
| Chlorinated Impurities | Gas Chromatography-Mass Spectrometry (GC-MS) | Separation followed by electron ionization and mass spectral identification/quantification of chlorinated by-products. |
| Peroxide Value | Iodometric Titration | Oxidation of potassium iodide by peroxides to liberate iodine, titrated with standardized sodium thiosulfate. |
| Non-Volatile Residue | Gravimetric Analysis | Evaporation of specified sample volume to dryness at 105 C, then weighing of residual solids. |
Technical Specifications of 3-Ethynyltoluene
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=98.5% (GC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.532–1.536 |
| Relative Density (20°C/25°C) | 0.945–0.955 g/cm³ |
| Odor | Characteristic hydrocarbon odor |
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 3-Ethynyltoluene
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 3-Ethynyltoluene
Packaging of 3-Ethynyltoluene
Industrial 3-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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