China Factory Direct
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| CAS number | 86-28-2 |
| Product name | N-Ethylcarbazole |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial GradeReagent Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| 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 |
|---|---|---|
| Organic Synthesis | Synthesis of pharmaceutical intermediates | Alkylation of carbazole with ethylating agents under catalytic conditions |
| Pharmaceutical Industry | Preparation of antitumor agents | Serving as an intermediate in the synthesis of certain novel antitumor drugs |
| Dye Industry | Synthesis of organic dyes | Used in the synthesis of certain fluorescent and colored dyes |
| Materials Science | Preparation of organic semiconductor materials | Employed as a synthetic precursor for organic electronic materials |
| Chemical Reagents | Laboratory analytical reagent | Applied in specific reaction steps of organic synthesis experiments |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination based on peak area comparison against a certified reference standard using reversed-phase chromatography and UV detection at ~300 nm. |
| Appearance | Visual Inspection | Assessment of physical state and color against a white background under controlled lighting; acceptable as off-white to light yellow crystalline solid. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, reflecting crystallinity and presence of impurities. |
| Loss on Drying (LOD) | Gravimetric Thermogravimetry | Mass loss measured after drying at 105 °C for 2 hours, indicating volatile content including residual solvents or moisture. |
| Residue on Ignition | Sulfated Ash Gravimetry | Measurement of inorganic residue remaining after controlled combustion at 700–800 °C, indicating inorganic impurities. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification of toxic metals (e.g., Pb, Cd, Hg, As) via plasma-excited atomic emission spectroscopy after acid digestion. |
| Chloride Impurity | Ion Chromatography (IC) | Separation and quantification of chloride ions using anion-exchange column with conductivity detection. |
| Related Substances | HPLC-UV with Gradient Elution | Identification and quantification of structurally similar impurities (e.g., carbazole, N-ethyl-3-bromocarbazole) using retention time matching and relative response factors. |
| Water Content | Karl Fischer Titration (Coulometric) | Electrochemical titration quantifying water via iodine generation and stoichiometric reaction with sample water. |
| Solvent Residues (e.g., toluene, ethanol) | GC-FID | Separation and quantification of residual organic solvents by gas chromatography with flame ionization detection. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light, confirming chiral purity (N-ethylcarbazole is achiral; used to detect chiral contaminants). |
| Test Item | Specification |
|---|---|
| Appearance | White to light yellow crystalline powder |
| Purity | >=98.5% (GC-MS) |
| Melting Point | 237.0 - 241.0 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.