2-Ethyl-5-methylthiophene Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 40323-88-4 |
| Product name | 2-Ethyl-5-methylthiophene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeCosmetic GradeFood 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 2-Ethyl-5-methylthiophene
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2-Ethyl-5-methylthiophene Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2-Ethyl-5-methylthiophene
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Intermediate in the synthesis of various drug molecules | Used in organic synthesis |
| Fine fragrances | Fragrance ingredient | Used in formulation |
| Pesticides | Intermediate in pesticide synthesis | Used in chemical synthesis |
Manufacturing Quality Control of 2-Ethyl-5-methylthiophene
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detector | Quantitative determination based on peak area comparison against a certified reference standard using a calibrated column and carrier gas. |
| Water Content | Karl Fischer Titration | Electrochemical titration where iodine reacts stoichiometrically with water in a methanol-based solvent, detecting endpoint amperometrically. |
| Residue on Evaporation | Gravimetric Analysis | Sample is evaporated to dryness under controlled temperature and pressure, and non-volatile residue is weighed. |
| Acidity (as H2SO4) | Acid-Base Titration | Titration with standardized sodium hydroxide solution using phenolphthalein indicator; acidity calculated from NaOH consumption. |
| Color (APHA) | Visual Comparison or Spectrophotometry | Comparison of sample color against platinum-cobalt standard solutions or measurement of absorbance at 455 nm in a 10 cm cell. |
| Density at 20 degC | Digital Density Meter | Measurement of oscillating U-tube frequency filled with sample, converted to density using calibration with air and water. |
| Refractive Index at 20 degC | Refractometry | Determination of refractive index by measuring critical angle of total internal reflection using a calibrated prism instrument. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of metal content after acid digestion and chelation, based on absorption of element-specific hollow cathode lamp radiation. |
| Sulfur Content | Combustion UV Fluorescence | Sample combusted in oxygen-rich environment; SO2 formed is detected by UV fluorescence intensity proportional to sulfur concentration. |
| Non-Volatile Matter | Gravimetric Analysis | Sample is heated to constant weight at 105 degC; residue mass is expressed as percentage of original sample. |
| Odor Impurities | Gas Chromatography-Mass Spectrometry (GC-MS) | Detection and semi-quantitative identification of volatile impurities via retention time and mass spectral library matching. |
| Boiling Range | Distillation (ASTM D1078) | Determination of initial and final boiling points using a micro distillation apparatus under specified atmospheric pressure and heating rate. |
Technical Specifications of 2-Ethyl-5-methylthiophene
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.545–1.555 |
| Relative Density (20°C/25°C) | 1.030–1.050 g/cm³ |
| Odor | Characteristic sulfurous 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 2-Ethyl-5-methylthiophene
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2-Ethyl-5-methylthiophene
Packaging of 2-Ethyl-5-methylthiophene
Industrial 2-Ethyl-5-methylthiophene 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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