9-Hydroxyxanthene Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 90-46-0 |
| Product name | 9-Hydroxyxanthene |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial GradeCosmetic GradeFood 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 9-Hydroxyxanthene
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 9-Hydroxyxanthene Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 9-Hydroxyxanthene
| Industry | Application | Process |
|---|---|---|
| Pesticides | Intermediate for synthesizing organophosphorus insecticides (e.g., parathion, methyl parathion) | Reacted with thionyl chloride or phosphorus pentachloride to form chloroformates, followed by condensation with thiophosphate esters |
| Pharmaceuticals | Intermediate for synthesizing anticholinergic drugs (e.g., neostigmine bromide) and local anesthetics | Active functional groups introduced via esterification, aminolysis, and related reactions |
| Dyes | Solubilizing agent and intermediate for azo dyes and triphenylmethane dyes | Hydroxyl group participates in diazotization-coupling reactions or sulfonation modifications |
| Fragrances | Alcohol component for synthesizing ester-based fragrances (e.g., xanthyl acetate) | Undergoes Fischer esterification with organic acids under acid catalysis |
| High-performance polymers | Copolymer monomer modifier for polycarbonates and polyester resins | Undergoes condensation polymerization with phosgene or dicarboxylic acids to enhance thermal resistance and toughness |
Manufacturing Quality Control of 9-Hydroxyxanthene
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) | Quantifies 2-phenylethanol content by separation and peak area comparison against a certified reference standard. |
| Water Content | Karl Fischer Titration | Measures water via coulometric or volumetric titration with iodine-based reagent reacting stoichiometrically with water. |
| Acidity (as Acetic Acid) | Acid-Base Titration | Determines total acidic impurities by titration with standardized NaOH solution using phenolphthalein indicator. |
| Color (APHA) | Visual Comparison or Spectrophotometry | Evaluates yellowness by matching sample color to APHA platinum-cobalt standard solutions or measuring absorbance at 430 nm. |
| Density at 20 degC | Digital Density Meter | Determines mass per unit volume using oscillating U-tube principle calibrated with air and water standards. |
| Refractive Index at 20 degC | Refractometry | Measures bending of light through the sample at specified temperature using calibrated Abbe refractometer. |
| Residue on Evaporation | Gravimetric Analysis | Quantifies non-volatile residue after controlled evaporation and drying, followed by weighing. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Detects trace metal contaminants by atomizing the sample and measuring absorption of element-specific wavelength light. |
| Iron (Fe) Content | Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) | Quantifies iron by plasma excitation and detection of characteristic atomic emission lines. |
| Aldehyde Impurities | Gas Chromatography with Flame Ionization Detection (GC-FID) | Separates and quantifies low-molecular-weight aldehydes (e.g., benzaldehyde) based on retention time and FID response. |
| Ethanol Content | Gas Chromatography (GC) | Detects residual ethanol as a common synthesis intermediate using capillary column separation and FID detection. |
| Non-Volatile Matter | Gravimetric Analysis | Measures insoluble or high-boiling residues after solvent extraction and oven drying to constant weight. |
Technical Specifications of 9-Hydroxyxanthene
| Test Item | Specification |
|---|---|
| Appearance | White to almost white powder |
| Purity | >=98.0% (LC-MS) |
| Water Content (KF) | <=0.5% |
| Melting Point | 127-131°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
| Odor | Characteristic mild odor |
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 9-Hydroxyxanthene
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 9-Hydroxyxanthene
Packaging of 9-Hydroxyxanthene
Industrial 9-Hydroxyxanthene 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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