6-nitro-1H,3H-naphtho[1,8-cd]pyran-1,3-dione Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 6642-29-1 |
| Product name | 6-nitro-1H,3H-naphtho[1,8-cd]pyran-1,3-dione |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeElectronic GradeReagent 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) |
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Documents We Provide for 6-nitro-1H,3H-naphtho[1,8-cd]pyran-1,3-dione
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 6-nitro-1H,3H-naphtho[1,8-cd]pyran-1,3-dione Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 6-nitro-1H,3H-naphtho[1,8-cd]pyran-1,3-dione
| Industry | Application | Process |
|---|---|---|
| Dyes and Pigments | Synthesis of high-performance dyes (e.g., naphthalene-based dyes) and pigment intermediates | Nitration, condensation |
| Electronic Materials | Intermediates for organic semiconductor materials or optoelectronic functional materials | Chemical vapor deposition, solution-based film formation |
| Pharmaceuticals | Intermediates in drug synthesis (e.g., for anticancer or antimicrobial agents) | Catalytic hydrogenation, amidation |
| Polymer Materials | Monomers for high-temperature-resistant polymers such as polyimides | High-temperature polymerization, solution-phase condensation polymerization |
| Research and Development | Molecular structure design and synthesis studies for novel functional materials | Laboratory-scale organic synthesis |
Manufacturing Quality Control of 6-nitro-1H,3H-naphtho[1,8-cd]pyran-1,3-dione
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 254 nm, calibrated against certified reference standard. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content based on the reaction of iodine with sulfur dioxide in a methanol-pyridine medium. |
| Residue on Ignition | Gravimetric Analysis | Heating sample to 750-800 C to combust organic matter, then weighing inorganic residue as percentage of original mass. |
| Heavy Metals (as Pb) | AAS (Flame or Graphite Furnace) | Atomic absorption spectroscopy quantifying total heavy metals after acid digestion, reported as lead equivalent. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride ions using anion-exchange column with conductivity detection. |
| Sulfate Impurity | Barium Sulfate Gravimetry | Precipitation of sulfate as BaSO4 under controlled pH, followed by filtration, drying, and weighing. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, using calibrated capillary method per USP <741>. |
| Organic Volatile Impurities | GC-FID | Gas chromatographic separation with flame ionization detection for residual solvents such as DMF, acetic acid, or xylene. |
| Color (APHA) | Visual Comparison or Spectrophotometric Measurement | Comparison of solution color intensity against APHA platinum-cobalt standards at 450 nm. |
| Acid Value | Acid-Base Titration | Titration with standardized NaOH solution using phenolphthalein indicator; expressed as mg KOH per g sample. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light to determine volumetric particle size distribution in dry or wet dispersion. |
| Bulk Density | Graduated Cylinder Method | Measurement of mass per unit volume of freely settled powder in a calibrated cylinder per ASTM D1895. |
Technical Specifications of 6-nitro-1H,3H-naphtho[1,8-cd]pyran-1,3-dione
| Test Item | Specification |
|---|---|
| Appearance | Orange solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 258–262°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of 6-nitro-1H,3H-naphtho[1,8-cd]pyran-1,3-dione
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 6-nitro-1H,3H-naphtho[1,8-cd]pyran-1,3-dione
Safety Information of 6-nitro-1H,3H-naphtho[1,8-cd]pyran-1,3-dione
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 6-nitro-1H,3H-naphtho[1,8-cd]pyran-1,3-dione
Industrial 6-nitro-1H,3H-naphtho[1,8-cd]pyran-1,3-dione Procurement FAQ
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.
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