Ethyl 2-butynoate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 4341-76-8 |
| Product name | Ethyl 2-butynoate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeIndustrial 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 Ethyl 2-butynoate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Ethyl 2-butynoate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Ethyl 2-butynoate
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Intermediates | Key intermediate in the synthesis of the antifungal agent terbinafine | Produced via esterification of 2-butynoic acid with ethanol under acidic catalysis, or via transesterification of 2-butynoyl chloride with ethanol under basic conditions; followed by reduction and amination to construct the terbinafine molecular scaffold |
| Agrochemical Intermediates | Alkynyl side-chain building block for synthesizing novel insecticides and plant growth regulators | Used as an alkynyl structural unit in Sonogashira coupling reactions to construct biologically active heterocyclic or arylalkyne compounds |
| Organic Synthesis | Multifunctional alkynylation reagent for C–C bond formation and heterocycle construction | Participates in [2+2] cycloadditions, Diels–Alder reactions, and metal-catalyzed cyclizations (e.g., Au/Ir-catalyzed alkyne cyclizations) to synthesize heterocyclic systems including cyclobutanes, pyrans, and furans |
Manufacturing Quality Control of Ethyl 2-butynoate
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantitative determination based on peak area comparison against a certified reference standard using a calibrated column and flame ionization detector. |
| Water Content | Karl Fischer Titration | Electrochemical titration where iodine reacts stoichiometrically with water in a methanol-based solvent, measuring endpoint amperometrically or potentiometrically. |
| Acidity (as Acetic Acid) | Acid-Base Titration with NaOH | Neutralization of acidic impurities using standardized sodium hydroxide solution with phenolphthalein indicator or potentiometric endpoint detection. |
| Color | APHA Color Scale (Visual or Spectrophotometric) | Comparison of sample color to platinum-cobalt standard solutions or measurement of absorbance at 455 nm in a 10 cm cell. |
| Density at 20 C | Digital Density Meter | Measurement of oscillation period of a U-tube filled with sample, converted to density via calibration with air and water standards. |
| Refractive Index at 20 C | Refractometry | Determination of refractive index by measuring the critical angle of total internal reflection using a calibrated prism instrument. |
| Residue on Evaporation | Gravimetric Analysis | Evaporation of a measured sample volume to dryness under controlled temperature and pressure, followed by weighing of non-volatile residue. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of trace metal content after acid digestion and chelation, using hollow cathode lamp and graphite furnace or flame atomization. |
| Chloride Content | Potentiometric Titration with AgNO3 | Titration with silver nitrate solution using a silver indicator electrode; endpoint detected by abrupt potential change due to AgCl precipitation. |
| Non-Volatile Matter | Gravimetric Analysis | Evaporation of a known mass of sample under vacuum at elevated temperature, followed by weighing of residual solids. |
| Odor | Sensory Evaluation | Trained personnel assess presence and intensity of characteristic odor versus reference standard under controlled conditions. |
| Appearance | Visual Inspection | Examination of clear, colorless to pale yellow liquid in a transparent container against white background under diffused daylight or standard illuminant. |
Technical Specifications of Ethyl 2-butynoate
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=98.0% (GC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.415–1.425 |
| Relative Density (20°C/25°C) | 0.910–0.930 g/cm³ |
| Odor | Characteristic ester-like 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 Ethyl 2-butynoate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Ethyl 2-butynoate
Packaging of Ethyl 2-butynoate
Industrial Ethyl 2-butynoate 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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