4-Hydroxypyridine Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 626-64-2 |
| Product name | 4-Hydroxypyridine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural 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 4-Hydroxypyridine
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Hydroxypyridine Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Hydroxypyridine
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Used as a pharmaceutical intermediate in the synthesis of antiviral, anticancer, and neuroactive agents | Introduced into target molecular structures via nucleophilic substitution, acylation, or coupling reactions |
| Agrochemicals | Used as an agrochemical intermediate in the synthesis of herbicides and fungicides | Active ingredients are constructed through organic synthesis steps such as condensation and alkylation |
| Materials Science | Used to prepare ligands or functional materials, including metal–organic frameworks (MOFs) and fluorescent probes | Acts as a nitrogen-containing heterocyclic ligand coordinating with metal ions to form complexes |
| Analytical Chemistry | Used as an analytical reagent or reference standard | Serves as a reference substance or derivatization reagent in chromatographic or spectroscopic analysis |
Manufacturing Quality Control of 4-Hydroxypyridine
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 260 nm, comparing peak area to a certified reference standard. |
| Water Content | Karl Fischer Titration | Electrochemical titration based on the reaction of iodine with water in a methanol-based reagent, measuring endpoint coulometrically or volumetrically. |
| Residue on Ignition | Gravimetric Analysis | Heating sample to 700-800 C in a platinum crucible and weighing the non-volatile inorganic residue after cooling. |
| Heavy Metals | ICP-OES | Multi-element quantification of Pb, Cd, Hg, As, and others by plasma excitation and atomic emission spectroscopy. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride anions using anion-exchange column with conductivity detection. |
| Sulfate Impurity | Turbidimetry | Formation of barium sulfate precipitate in acidic medium; quantification via measurement of turbidity at 420 nm. |
| Related Substances | HPLC-DAD | Separation and identification of structurally similar impurities using HPLC with diode-array detection and spectral comparison. |
| Melting Point | Capillary Melting Point Apparatus | Determination of solid-to-liquid phase transition temperature using calibrated capillary apparatus under controlled heating rate. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Measurement of hydrogen ion activity in a 1% w/v aqueous solution using a calibrated glass electrode system. |
| Organic Volatile Impurities | GC-FID | Identification and quantification of residual solvents (e.g., methanol, acetone) using gas chromatography with flame ionization detection. |
| Appearance | Visual Inspection | Assessment of physical state, color, and clarity against established reference standards under controlled lighting conditions. |
| Solubility in Water | Qualitative Solubility Test | Evaluation of complete dissolution of 1 g sample in 10 mL distilled water at 25 C with gentle agitation for 5 minutes. |
Technical Specifications of 4-Hydroxypyridine
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 112–116 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
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 4-Hydroxypyridine
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Hydroxypyridine
Packaging of 4-Hydroxypyridine
Industrial 4-Hydroxypyridine 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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