China Factory Direct
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| CAS number | 69386-35-2 |
| Product name | 9H-Carbazole, 2,7-bis(1,1-dimethylethyl)- |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeElectronic GradeMaterial GradeIndustrial GradeSpecialty 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 |
|---|---|---|
| Organic Synthesis | Intermediate | Used in palladium-catalyzed cross-coupling reactions |
| Organic Synthesis | Intermediate | Used in direct arylation reactions |
| Organic Optoelectronic Materials | Organic Light-Emitting Diode (OLED) Material | Applied in vacuum thermal evaporation |
| Organic Optoelectronic Materials | Charge Transport Material | Applied in solution-processed thin-film fabrication |
| Pharmaceuticals | Building Block | Used in drug molecule synthesis |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at ~280–300 nm, comparing peak area against a certified reference standard. |
| Related Substances (Impurities) | HPLC-UV/DAD or UPLC-MS | Separation and identification/quantification of structurally related impurities (e.g., mono-substituted isomers, oxidation products) using gradient elution and spectral or mass confirmation. |
| Residual Solvents | GC-FID or GC-MS | Headspace GC analysis with flame ionization or mass spectrometric detection to quantify volatile organic solvents (e.g., toluene, THF, methanol) per ICH Q3C guidelines. |
| Water Content | Karl Fischer Titration (Coulometric) | Electrochemical titration quantifying water via iodine generation and stoichiometric reaction with water in anhydrous methanol-based reagent. |
| Heavy Metals | ICP-MS or ICP-OES | Digestion followed by multi-element trace metal quantification (e.g., Pb, Cd, Hg, As) using plasma-based atomic emission or mass spectrometry. |
| Residue on Ignition (Sulfated Ash) | Gravimetric Analysis | Incineration at 700–800 °C followed by weighing of non-volatile inorganic residue after sulfuric acid treatment. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition measurement by controlled heating; sharp melting range indicates crystalline purity and absence of eutectic impurities. |
| Appearance and Color | Visual Inspection / APHA Color Scale | Subjective assessment of physical state (crystalline powder) and color intensity compared to platinum-cobalt standards. |
| Chloride Impurity | Ion Chromatography (IC) or Potentiometric Titration | Anion separation and quantification (IC) or argentometric titration for chloride ions derived from synthesis residues. |
| Particle Size Distribution | Laser Diffraction | Analysis of dry or wet dispersed sample to determine D10, D50, D90 values based on light scattering patterns. |
| Bulk Density and Tapped Density | ASTM D6393 (Graduated Cylinder Method) | Measurement of mass per unit volume before and after standardized mechanical tapping to assess flow and handling properties. |
| Microbial Contamination | Membrane Filtration / USP <61> | Viable microbial count (total aerobic microbes, yeasts/molds) using selective agar media and incubation per pharmacopeial methods (if applicable for pharma-grade). |
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% (by LC-MS) |
| Melting Point | 148–152 °C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Conforms to reference standard |
| 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.