ALPHA-NAPHTHOLBENZEIN Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 6948-88-5 |
| Product name | ALPHA-NAPHTHOLBENZEIN |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical 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 ALPHA-NAPHTHOLBENZEIN
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk ALPHA-NAPHTHOLBENZEIN Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of ALPHA-NAPHTHOLBENZEIN
| Industry | Application | Process |
|---|---|---|
| Chemical | Indicator | Used to detect and indicate changes during specific chemical reactions |
| Analytical Chemistry | pH Measurement | Applied as a pH indicator to signal the endpoint in acid-base titrations |
| Laboratory | Research and Analysis | Employed in various chemical analyses and research under laboratory conditions |
| Pharmaceutical | Pharmaceutical Raw Material | May serve as an intermediate or auxiliary reagent in certain drug syntheses |
Manufacturing Quality Control of ALPHA-NAPHTHOLBENZEIN
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (p-Naphtholbenzein Content) | HPLC-UV | Quantifies main component using reversed-phase HPLC with UV detection at 520 nm based on peak area comparison against reference standard. |
| Loss on Drying | Gravimetric (105 C, 2 h) | Measures mass loss after drying under controlled temperature and time to determine volatile content including moisture and solvents. |
| Residue on Ignition | Gravimetric (Ashing at 600 C) | Determines inorganic impurities by incinerating sample at high temperature and weighing residual ash. |
| Heavy Metals (as Pb) | AAS (Flame or Graphite Furnace) | Quantifies total heavy metals by atomic absorption spectroscopy after acid digestion and matrix matching. |
| Chloride Impurity | Potentiometric Titration with AgNO3 | Measures chloride ions via argentometric titration using silver nitrate and a silver indicator electrode. |
| Sulfate Impurity | Turbidimetric Method (BaCl2 precipitation) | Quantifies sulfate as barium sulfate precipitate measured by light scattering at 420 nm. |
| Iron Impurity | Colorimetric (1,10-Phenanthroline method) | Forms orange-red complex with Fe2+; absorbance measured at 510 nm for quantification. |
| pH of 1% Aqueous Suspension | pH Meter Measurement | Determines acidity/basicity of aqueous suspension using calibrated pH electrode under standardized conditions. |
| Particle Size Distribution | Laser Diffraction | Measures size distribution of dry powder using Mie scattering theory and laser diffraction analysis. |
| Organic Volatile Impurities (e.g., methanol, acetone) | GC-FID | Identifies and quantifies residual solvents by gas chromatography with flame ionization detection. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid using calibrated capillary tube method. |
| Color (APHA) | Visual Comparison or Spectrophotometric | Evaluates color intensity against APHA platinum-cobalt scale using visual match or spectrophotometric absorbance at 430 nm. |
Technical Specifications of ALPHA-NAPHTHOLBENZEIN
| Test Item | Specification |
|---|---|
| Appearance | Yellow to pink to orange to red-brown solid |
| Purity | >=98.0% (LC-MS) |
| Melting Point | 127–131°C |
| Total Impurities | <=2.0% |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=20 ppm (as Pb) |
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 ALPHA-NAPHTHOLBENZEIN
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of ALPHA-NAPHTHOLBENZEIN
Packaging of ALPHA-NAPHTHOLBENZEIN
Industrial ALPHA-NAPHTHOLBENZEIN 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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