China Factory Direct
|
|
| CAS number | 239-01-0 |
| Product name | 11H-BENZO[A]CARBAZOLE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial Grade |
| Packaging | 25KG/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 |
|---|---|---|
| Dyes and Pigments Industry | Synthesis of high-performance organic pigments (e.g., quinacridone pigments) and dye intermediates | Chemical conversion to prepare polycyclic aromatic dye molecules for producing high-grade colorants such as Pigment Red and Pigment Violet |
| Functional Materials Industry | Organic optoelectronic materials and hole-transport materials | Serving as a core building block in the synthesis of organic light-emitting diode (OLED) materials, leveraging its conjugated polycyclic structure and extended π-system |
| Chemical Synthesis Industry | Intermediate for fine chemical synthesis | Undergoing electrophilic substitution reactions (e.g., halogenation, sulfonation) on the parent structure to introduce functional groups for derivative synthesis |
| Research and Development | Research and development of novel materials | Used to construct model compounds with tailored photophysical properties for investigating photophysical behavior and energy-level architecture |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reversed-phase HPLC with UV detection at 254 nm based on peak area comparison against certified reference standard. |
| Related Substances | HPLC-DAD | Identifies and quantifies impurities by retention time and spectral matching using diode-array detection across 200–400 nm. |
| Residual Solvents | GC-FID | Detects and quantifies volatile organic solvents (e.g., toluene, DMF) via headspace GC with flame ionization detection using internal standard calibration. |
| Water Content | Karl Fischer Titration | Determines trace water by coulometric or volumetric titration using iodine generation and stoichiometric reaction with water. |
| Heavy Metals (as Pb) | ICP-MS | Measures total heavy metal content (Pb, Cd, Hg, As) after acid digestion using inductively coupled plasma mass spectrometry for ultra-trace detection. |
| Chlorinated Impurities | GC-ECD | Detects chlorinated aromatic impurities (e.g., chlorobenzene derivatives) using electron capture detection for high sensitivity to halogenated compounds. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range of solid-to-liquid transition using calibrated capillary apparatus per USP <741>. |
| Residue on Ignition | Gravimetric Analysis | Measures inorganic ash content by ignition at 700-800 C followed by precise weighing of residual residue. |
| Appearance | Visual Inspection | Assesses physical state, color, and presence of foreign particles against white background under controlled lighting per Ph. Eur. 2.2.1. |
| Bulk Density | ASTM D1895 | Determines mass per unit volume of freely settled powder using standardized cylinder and funnel method. |
| Particle Size Distribution | Laser Diffraction | Measures particle size distribution by analyzing angular scattering pattern of laser beam passing through dispersed sample. |
| Sulfated Ash | Gravimetric Analysis | Quantifies inorganic residue after sulfuric acid treatment and high-temperature ignition, per USP <281>. |
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% |
| Melting Point | 235-239°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Heavy Metals | <=20 ppm |
|
|
|
| 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.