China Factory Direct
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| CAS number | 5751-83-7 |
| Product name | Ethyl 5-bromothiophene-2-carboxylate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeIndustrial 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Intermediate in the synthesis of antiviral, antitumor, or anti-inflammatory drugs | Used to construct thienyl heterocyclic scaffolds via cross-coupling reactions such as Suzuki coupling and Heck reaction |
| Agrochemicals | Synthesis of biologically active thiophene-based pesticides | Applied as a key building block for molecular structure modification, introducing bromo and ester functional groups to modulate biological activity |
| Materials Science | Preparation of organic semiconductors, conductive polymers, or optoelectronic materials | Employed to synthesize functional polymers containing thiophene units via polymerization or metal-catalyzed coupling reactions |
| Fine Chemicals | Intermediate in the synthesis of fragrances, dyes, or other functional chemicals | Utilized for nucleophilic substitution or metallation reactions via its bromo group, enabling further derivatization |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 254 nm, comparing peak area to a certified reference standard. |
| Related Substances | HPLC-DAD | Separation and identification of impurities using HPLC coupled with diode-array detection, with peak purity assessment and relative response factor correction. |
| Residual Solvents | GC-FID | Headspace gas chromatography with flame ionization detection to quantify residual ethyl acetate, ethanol, and dichloromethane based on calibrated external standards. |
| Water Content | Karl Fischer Titration | Volumetric titration using iodine-based reagent where water reacts stoichiometrically, enabling precise quantification in organic matrices. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element trace metal analysis after acid digestion; detection based on characteristic atomic emission spectra intensities. |
| Chloride Impurity | Ion Chromatography | Separation of anions on an ion-exchange column with suppressed conductivity detection for quantitative chloride determination. |
| Sulfated Ash | Gravimetric Analysis | Ignition of sample at 700-750 C followed by sulfuric acid treatment and final weighing of non-volatile residue. |
| Appearance | Visual Inspection | Assessment of physical state and color against established reference standards under controlled white light and defined viewing conditions. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range over which solid transitions to liquid, using calibrated digital apparatus per USP <741>. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light passing through a solution, indicating chiral purity and absence of racemization. |
| Residue on Ignition | Gravimetric Analysis | Weighing of inorganic residue remaining after high-temperature incineration, reflecting non-volatile inorganic contaminants. |
| pH of Solution (1% w/v in water) | pH Meter | Electrochemical measurement of hydrogen ion activity in aqueous suspension using calibrated glass electrode system. |
| Test Item | Specification |
|---|---|
| Appearance | Light orange to yellow to green clear liquid |
| Purity | >=98.0% (GC-MS) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Odor | Characteristic ester-like odor |
| Solubility | Soluble in common organic solvents (e.g., ethanol, acetone, dichloromethane); insoluble in water |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
| Pictograms | ![]() |
| Signal Word | Warning |
| Safety Data Sheet | |
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.