4,4'-Vinylenedipyridine Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 13362-78-2 |
| Product name | 4,4'-Vinylenedipyridine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty 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 4,4'-Vinylenedipyridine
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4,4'-Vinylenedipyridine Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4,4'-Vinylenedipyridine
| Industry | Application | Process |
|---|---|---|
| Materials Science | Fluorescent emissive material in organic light-emitting diodes (OLEDs) | Used in the synthesis of optoelectronic materials |
| Chemical Research | Ligand for constructing metal–organic frameworks (MOFs) | Applied in coordination chemistry synthesis |
| Pharmaceuticals | Pharmaceutical intermediate for synthesizing antitumor or anti-inflammatory drugs | Employed in organic synthesis reactions |
| Analytical Chemistry | Fluorescent probe for detecting metal ions or specific molecules | Utilized in analytical detection techniques |
| Dye Industry | Raw material for synthesizing photosensitive dyes or photochromic materials | Applied in dye synthesis processes |
Manufacturing Quality Control of 4,4'-Vinylenedipyridine
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the sample's color, physical state (e.g., white or off-white crystalline powder), and presence of impurities or caking. |
| Purity Analysis | High-Performance Liquid Chromatography (HPLC) | Use a reversed-phase column (e.g., C18) and a UV detector (typically around 254 nm) to quantify the main component based on retention time and peak area. |
| Structural Confirmation | Nuclear Magnetic Resonance Spectroscopy (NMR) | Use ¹H-NMR and ¹³C-NMR to confirm the compound's structure by comparing characteristic peak chemical shifts with literature values. |
| Structural Confirmation | Mass Spectrometry (MS) | Employ electrospray ionization (ESI) or electron ionization (EI) MS to determine the molecular ion peak ([M+H]+ ≈ m/z 183) and verify molecular weight. |
| Structural Confirmation | Fourier Transform Infrared Spectroscopy (FT-IR) | Analyze characteristic absorption peaks of functional groups, such as C=C double bonds (around 1600 cm⁻¹), and aromatic and pyridine ring vibrations (1500–1600 cm⁻¹). |
| Assay | UV-Visible Spectrophotometry (UV-Vis) | Determine concentration using characteristic absorbance at specific wavelengths (e.g., 260–280 nm) via a standard calibration curve. |
| Moisture Content | Karl Fischer Titration | Precisely measure water content in the sample; suitable for quality control of active pharmaceutical ingredients or intermediates. |
| Residual Solvents | Gas Chromatography (GC) | Detect organic solvents potentially remaining from synthesis (e.g., methanol, ethanol, dichloromethane), in compliance with ICH guidelines. |
| Melting Point | Melting Point Determination | Measure the melting temperature using a melting point apparatus and compare with literature values (approx. 198–200 °C) to assess purity and consistency. |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) or ICP-MS | Determine residual levels of heavy metals such as lead, cadmium, and mercury to ensure compliance with pharmaceutical or high-purity chemical standards. |
| Residue on Ignition / Sulfated Ash | Ignition Residue Test | Weigh the sample after high-temperature incineration to determine total inorganic impurities; commonly used for raw material purity assessment. |
Technical Specifications of 4,4'-Vinylenedipyridine
| Test Item | Specification |
|---|---|
| Appearance | White to yellow to orange crystalline powder |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 148–152°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Identification (IR) | Consistent with structure |
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 4,4'-Vinylenedipyridine
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4,4'-Vinylenedipyridine
Packaging of 4,4'-Vinylenedipyridine
Industrial 4,4'-Vinylenedipyridine 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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