10-(2,5-Dihydroxyphenyl)-10H-9-oxa-10-phospha-phenantbrene-10-oxide Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 99208-50-1 |
| Product name | 10-(2,5-Dihydroxyphenyl)-10H-9-oxa-10-phospha-phenantbrene-10-oxide |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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 99208-50-1
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 99208-50-1 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 99208-50-1
| Industry | Application | Process |
|---|---|---|
| Electronics | Flame retardant for PCB substrates | Added during epoxy resin synthesis or compounding as a reactive flame retardant to produce halogen-free flame-retardant copper-clad laminates. |
| Electronics | Flame retardant for semiconductor encapsulation materials | Incorporated as a reactive flame-retardant monomer into the condensation polymerization of epoxy or phenolic resins for encapsulation material production. |
| Polymer Materials | Flame retardant for engineering plastics | Added via melt blending into engineering plastics such as PBT, PET, and PPO to achieve flame-retardant modification. |
| Coatings | Additive for insulating coatings | Incorporated by mechanical mixing during the formulation of insulating varnishes and coatings to enhance thermal resistance and flame retardancy. |
| Fibers | Flame-retardant fiber modification | Added to the spinning melt or solution, or applied via post-treatment to anchor onto fiber surfaces, thereby imparting flame-retardant properties. |
Manufacturing Quality Control of 99208-50-1
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification by peak area comparison against a certified reference standard using reversed-phase chromatography and UV detection at 254 nm. |
| Related Substances | HPLC-UV | Separation and quantification of impurities relative to main peak using gradient elution and UV detection. |
| Residual Solvents | GC-FID | Detection and quantification of volatile organic solvents based on retention time and flame ionization response. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content via iodine-sulfur dioxide reaction in pyridine/methanol medium. |
| Heavy Metals | ICP-OES | Multi-element quantification of metal impurities (e.g., Pb, Cd, Hg, As) after acid digestion using plasma optical emission spectroscopy. |
| Chloride Content | Ion Chromatography | Separation and conductivity-based quantification of chloride ions in aqueous extract. |
| Sulfated Ash | Gravimetric Analysis | Determination of inorganic residue mass after high-temperature incineration of sample in sulfuric acid medium. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition measurement using controlled heating and visual observation of solid-to-liquid phase change. |
| Appearance | Visual Inspection | Assessment of physical state, color, and presence of foreign particles under standardized white light and against reference standards. |
| Bulk Density | USP <616> Tap Density Method | Measurement of mass per unit volume after mechanical tapping of a known mass in a calibrated cylinder. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered light intensity patterns to determine size distribution of dry or dispersed particles. |
| pH of Aqueous Suspension | pH Meter | Measurement of hydrogen ion activity in a defined suspension (e.g., 1% w/v in water) using calibrated glass electrode. |
Technical Specifications of 99208-50-1
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.5% (LC-MS) |
| Water Content (KF) | <=0.5% |
| Melting Point | 182–186 °C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.3% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
| Identification (NMR) | Conforms to reference spectrum |
| Identification (IR) | Conforms to reference spectrum |
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 99208-50-1
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 99208-50-1
Packaging of 99208-50-1
Industrial 99208-50-1 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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