1-(2-Pyridylazo)-2-naphthol Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 85-85-8 |
| Product name | 1-(2-Pyridylazo)-2-naphthol |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeReagent 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 1-(2-Pyridylazo)-2-naphthol
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 1-(2-Pyridylazo)-2-naphthol Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 1-(2-Pyridylazo)-2-naphthol
| Industry | Application | Process |
|---|---|---|
| Chemical Analysis | Colorimetric reagent for metal ions (e.g., cobalt, nickel, copper) in spectrophotometric detection | Complexation reaction followed by colorimetric determination |
| Electroplating Industry | Additive in electroplating baths to control metal ion deposition | Incorporation into electroplating bath formulations |
| Environmental Monitoring | Reagent for detecting heavy metal contaminants in water or soil samples | Sample pretreatment followed by colorimetric analysis |
| Research & Education | Reagent for qualitative and quantitative metal ion analysis in teaching laboratories | Preparation of standard solutions in laboratory settings |
| Pharmaceutical Industry | Chelating agent for metal ions in catalytic or intermediate synthesis (process-specific) | Use as an auxiliary reagent in synthetic reactions |
Manufacturing Quality Control of 1-(2-Pyridylazo)-2-naphthol
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Quantifies main component concentration via absorbance at characteristic λ_max (e.g., ~500 nm in alkaline medium) using Beer-Lambert law. |
| Loss on Drying (LOD) | Gravimetric Analysis (Thermogravimetry) | Measures mass loss after controlled heating (105 °C, 2 h) to determine volatile content including residual solvents and moisture. |
| Residue on Ignition | Gravimetric Analysis (Sulfated Ash) | Determines inorganic impurities by incinerating sample at 600–700 °C and weighing residual sulfate ash. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantifies total heavy metals via flame or graphite furnace AAS after acid digestion and chelation. |
| Chloride Impurity | Potentiometric Titration with AgNO₃ | Measures chloride ions by titration with silver nitrate using silver indicator electrode; endpoint detected by potential inflection. |
| Related Substances | HPLC with UV Detection | Separates and quantifies structurally related impurities (e.g., unreacted 2-naphthol, azo-coupling by-products) using reversed-phase C18 column and UV detection. |
| Melting Point | Capillary Melting Point Determination | Determines purity-dependent solid–liquid transition temperature range using calibrated digital melting point apparatus. |
| Organic Volatile Impurities (e.g., ethanol, acetone) | Gas Chromatography (GC-FID) | Identifies and quantifies residual solvents by separation on polar capillary column and flame ionization detection. |
| pH of Aqueous Suspension | pH Potentiometry | Measures acidity/basicity of a defined suspension (e.g., 1% w/v in water) using calibrated pH electrode. |
| Solubility in Common Solvents | Visual Qualitative Test | Assesses compliance with specified solubility behavior (e.g., soluble in ethanol, insoluble in water) under standardized conditions. |
| Color (APHA) | Visual Comparison or Spectrophotometric APHA | Evaluates color intensity against platinum-cobalt standard scale using matched glass tubes or spectrophotometric correlation. |
| Water Content | Karl Fischer Titration | Determines trace water content via coulometric or volumetric titration based on iodine consumption in pyridine/methanol buffer. |
| Iron (Fe) Impurity | ICP-OES | Quantifies iron after microwave-assisted acid digestion by measuring atomic emission intensity at characteristic wavelength (e.g., 238.204 nm). |
Technical Specifications of 1-(2-Pyridylazo)-2-naphthol
| Test Item | Specification |
|---|---|
| Appearance | Red solid |
| Purity | >=98.0% |
| Melting Point | 129-133°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=20 ppm |
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 1-(2-Pyridylazo)-2-naphthol
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 1-(2-Pyridylazo)-2-naphthol
Packaging of 1-(2-Pyridylazo)-2-naphthol
Industrial 1-(2-Pyridylazo)-2-naphthol 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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