ETHYL 4-METHOXY-3-OXO-BUTANOATE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 66762-68-3 |
| Product name | ETHYL 4-METHOXY-3-OXO-BUTANOATE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeIndustrial GradeSpecialty 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 ETHYL 4-METHOXY-3-OXO-BUTANOATE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk ETHYL 4-METHOXY-3-OXO-BUTANOATE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of ETHYL 4-METHOXY-3-OXO-BUTANOATE
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Synthesis | Synthesis of antibiotic and antiviral drug intermediates | Used as a β-keto ester in condensation and cyclization reactions |
| Agrochemical Synthesis | Synthesis of high-efficiency insecticide and herbicide precursors | Applied in constructing heterocycles or functionalized side chains |
| Fine Chemicals | Synthesis of fragrance and dye intermediates | Undergoes functional group transformations such as alkylation and acylation |
| Organic Synthesis | Multifunctional building block | Participates in classical reactions including Michael addition and Claisen condensation |
Manufacturing Quality Control of ETHYL 4-METHOXY-3-OXO-BUTANOATE
| 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 appropriate internal/external standard. |
| Water Content | Karl Fischer Titration (Coulometric mode) | Electrochemical titration where iodine generated in situ reacts stoichiometrically with water; endpoint detected amperometrically. |
| Acidity (as Acetic Acid) | Acid-Base Titration with NaOH | Neutralization of acidic impurities using standardized sodium hydroxide solution, with phenolphthalein or potentiometric endpoint detection. |
| Residue on Ignition | Gravimetric Analysis (Weight Loss on Ignition) | Sample is ignited at 700–800 °C to volatilize organic matter; inorganic residue is weighed after cooling in a desiccator. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) after acid digestion | Sample digested with nitric/hydrochloric acid; lead concentration quantified by absorbance of ground-state atoms at 283.3 nm. |
| Chloride Impurity | Ion Chromatography (IC) with Conductivity Detection | Separation of chloride anions on an anion-exchange column followed by quantitative detection via electrical conductivity. |
| Related Substances | High-Performance Liquid Chromatography (HPLC) with UV detection | Separation and quantification of structurally related impurities using reversed-phase C18 column and UV detection at 210–230 nm. |
| Color | APHA Color Scale (Visual or Spectrophotometric) | Comparison of sample solution color intensity against platinum-cobalt standard solutions using visual matching or spectrophotometric absorbance at 455 nm. |
| Density | Digital Density Meter (Oscillating U-tube principle) | Measurement of sample density based on resonant frequency shift of a vibrating U-shaped glass tube filled with the liquid. |
| Refractive Index | Abbe Refractometer | Determination of refractive index by measuring the critical angle of total internal reflection at the sample-prism interface at 20 °C. |
| Boiling Point Range | Micro Distillation (ASTM D1078) | Determination of initial and final boiling points under controlled heating and atmospheric pressure using a micro distillation apparatus. |
| Residual Solvents (e.g., Ethanol, Ethyl Acetate) | Headspace Gas Chromatography (HS-GC) with FID | Volatile solvents partitioned into headspace above sample, injected into GC for separation and quantification against calibration standards. |
| Specific Optical Rotation | Polarimetry | Measurement of angular rotation of plane-polarized light induced by chiral compounds in solution at specified wavelength (e.g., 589 nm) and temperature. |
| Appearance (Clarity & Color) | Visual Inspection in Nessler Cylinder | Visual assessment of clear, colorless to pale yellow liquid against white/black background under controlled lighting per USP <941>. |
Technical Specifications of ETHYL 4-METHOXY-3-OXO-BUTANOATE
| 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) | 1.430–1.435 |
| Relative Density (20°C/25°C) | 1.075–1.085 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 4-METHOXY-3-OXO-BUTANOATE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of ETHYL 4-METHOXY-3-OXO-BUTANOATE
Safety Information of ETHYL 4-METHOXY-3-OXO-BUTANOATE
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of ETHYL 4-METHOXY-3-OXO-BUTANOATE
Industrial ETHYL 4-METHOXY-3-OXO-BUTANOATE 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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