8-Aminonaphthalene-1,6-disulfonic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 129-91-9 |
| Product name | 8-Aminonaphthalene-1,6-disulfonic acid |
| 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 8-Aminonaphthalene-1,6-disulfonic acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 8-Aminonaphthalene-1,6-disulfonic acid Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 8-Aminonaphthalene-1,6-disulfonic acid
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Used as an intermediate in the synthesis of azo and reactive dyes | Coupled with coupling components via diazotization to produce dye molecules with specific structures |
| Pharmaceutical Industry | Used as an intermediate in drug synthesis | Employed in constructing active pharmaceutical ingredients (APIs) containing naphthalene rings |
| Analytical Chemistry | Used as a fluorescent probe or analytical reagent | Leverages the water solubility of its sulfonic acid group and the reactivity of its amino group for metal ion detection or derivatization analysis |
Manufacturing Quality Control of 8-Aminonaphthalene-1,6-disulfonic acid
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Acid-Base Titration | Quantifies the primary amine group by titration with standardized HCl solution using methyl orange indicator. |
| Moisture Content | Karl Fischer Titration | Measures water content via coulometric or volumetric reaction between water and iodine in a pyridine-methanol solvent system. |
| Residue on Ignition | Gravimetric Analysis | Determines inorganic ash content by high-temperature incineration followed by weighing of residual solids. |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) | Quantifies metals such as Pb, Cd, and Hg by measuring absorption of specific wavelengths of light by atomized sample vapor. |
| Chloride Impurity | Potentiometric Titration | Detects chloride ions using silver nitrate titrant and silver/silver chloride electrode for endpoint detection. |
| Sulfate Impurity | Gravimetric Analysis | Precipitates sulfate as barium sulfate under controlled acidic conditions and determines mass after filtration and drying. |
| Iron Content | ICP-OES | Measures Fe concentration by detecting characteristic atomic emission lines from plasma-excited sample aerosol. |
| pH of Aqueous Solution | pH Meter Measurement | Determines acidity/basicity of a defined aqueous suspension using calibrated glass electrode system. |
| Organic Impurities | HPLC-UV | Separates and quantifies related substances using reversed-phase chromatography with UV detection at 254 nm. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid using calibrated capillary tube method. |
| Bulk Density | Graduated Cylinder Method | Measures mass per unit volume of freely settled powder in a standard cylinder. |
| Particle Size Distribution | Laser Diffraction | Analyzes particle size distribution by measuring angular variation in intensity of laser light scattered by dispersed particles. |
Technical Specifications of 8-Aminonaphthalene-1,6-disulfonic acid
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 270-275°C (decomposes) |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.3% |
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 8-Aminonaphthalene-1,6-disulfonic acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Safety Information of 8-Aminonaphthalene-1,6-disulfonic acid
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 8-Aminonaphthalene-1,6-disulfonic acid
Industrial 8-Aminonaphthalene-1,6-disulfonic acid 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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