China Factory Direct
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| CAS number | 6960-42-5 |
| Product name | 7-Nitroindole |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural 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 |
|---|---|---|
| Pharmaceuticals | Synthesis of antitumor drug intermediates | Multi-step organic synthesis |
| Agrochemicals | Preparation of fungicide or insecticide precursors | Catalytic or condensation reactions |
| Dyes & Pigments | Synthesis of structural units for complex dye molecules | Coupling or diazotization reactions |
| Research | Model compound for indole derivative studies | Laboratory-scale synthesis |
| Materials Science | Preparation of monomers for functional polymers | Polymerization or modification processes |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies 7-nitroindole by separation on reversed-phase column and UV detection at ~320 nm, using external standard calibration. |
| Related Substances | HPLC-DAD | Detects and quantifies structurally related impurities (e.g., nitro isomers, indole, oxidation products) via gradient HPLC with diode-array detection. |
| Residual Solvents | GC-FID | Identifies and quantifies residual solvents (e.g., DMF, ethyl acetate, methanol) using capillary GC with flame ionization detection. |
| Water Content | Karl Fischer Titration | Determines trace water content via coulometric or volumetric titration using iodine-based redox reaction in anhydrous medium. |
| Heavy Metals | ICP-MS | Measures total elemental impurities (Pb, Cd, Hg, As, etc.) after acid digestion, based on mass spectrometric detection of metal isotopes. |
| Chloride Content | Ion Chromatography | Quantifies chloride ions by anion-exchange chromatography with conductivity detection following sample dissolution and filtration. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid, indicating purity and identity via thermal behavior. |
| Appearance | Visual Inspection | Assesses physical state, color, and presence of foreign particles under controlled white light against standard reference. |
| Loss on Drying | Gravimetric (Thermogravimetry) | Measures volatile matter loss by weight difference before and after drying at specified temperature and time under vacuum or nitrogen. |
| Specific Optical Rotation | Polarimetry | Evaluates chiral purity (if applicable) or detects optically active impurities by measuring rotation of plane-polarized light in solution. |
| pH of Aqueous Suspension | pH Meter | Determines acidity/basicity of saturated aqueous suspension using calibrated pH electrode, indicating acidic/basic impurity profile. |
| Particle Size Distribution | Laser Diffraction | Measures size distribution of solid particles in suspension via analysis of laser light scattering pattern. |
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% (LC-MS) |
| Melting Point | 210–214 °C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=10 ppm |
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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.