FLAVANTHRONE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 475-71-8 |
| Product name | FLAVANTHRONE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial 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) |
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Documents We Provide for FLAVANTHRONE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk FLAVANTHRONE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of FLAVANTHRONE
| Industry | Application | Process |
|---|---|---|
| Dye Manufacturing | Used in the production of yellow dyes | Chemically reduces azo compounds to the corresponding hydrazine compounds |
| Printing Inks | Used as a yellow pigment | Formulated into printing inks by blending Reduction Yellow G with other components |
| Polymeric Materials | Used for plastic coloring | Incorporated into plastic raw materials and colored via heating and compounding |
Manufacturing Quality Control of FLAVANTHRONE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification based on peak area comparison against certified reference standard using reversed-phase chromatography and UV detection at ~420 nm. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content via reaction of iodine with sulfur dioxide in pyridine/methanol medium. |
| Ash Content | Gravimetric Analysis | Residue mass after incineration at 550-600 C, expressed as percentage of original sample weight. |
| Heavy Metals (as Pb) | AAS | Atomic absorption spectroscopy measuring absorbance of ground-state atoms in flame or graphite furnace. |
| Chloride Impurity | Potentiometric Titration | Titration with silver nitrate using silver indicator electrode; endpoint detected by potential change. |
| Sulfate Impurity | Gravimetric Analysis | Precipitation as barium sulfate followed by filtration, drying, and weighing of residue. |
| pH of Aqueous Solution | pH Meter Measurement | Electrochemical measurement of hydrogen ion activity in 1% w/v aqueous dispersion. |
| Organic Volatile Impurities | GC-FID | Separation and quantification of volatile residues using capillary gas chromatography with flame ionization detection. |
| Particle Size Distribution | Laser Diffraction | Analysis of light scattering pattern from dispersed particles to determine size distribution by Mie theory. |
| Bulk Density | Graduated Cylinder Method | Mass per unit volume of freely settled powder measured in standardized cylinder under controlled conditions. |
| Color Strength (Tinting Strength) | Visual Comparison or Reflectance Spectrophotometry | Comparison of color intensity against primary standard using gray scale or reflectance ratio at dominant wavelength. |
| Thermal Stability | TGA | Measurement of mass loss versus temperature under nitrogen to assess decomposition onset and residual volatiles. |
Technical Specifications of FLAVANTHRONE
| Test Item | Specification |
|---|---|
| Appearance | Brown solid |
| Purity | >=98.0% |
| Total Impurities | <=2.0% |
| Water Content (KF) | <=0.5% |
| Melting Point | 245-250°C |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.3% |
| Solubility | Soluble in hot dimethylformamide; practically insoluble in water |
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 FLAVANTHRONE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of FLAVANTHRONE
Industrial FLAVANTHRONE 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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