5,6-DIPHENYLPYRAZIN-2-OL Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 18591-57-6 |
| Product name | 5,6-DIPHENYLPYRAZIN-2-OL |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty 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 5,6-DIPHENYLPYRAZIN-2-OL
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 5,6-DIPHENYLPYRAZIN-2-OL Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 5,6-DIPHENYLPYRAZIN-2-OL
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical R&D | Intermediate for synthesizing pyrazine derivatives with antitumor and antibacterial activity | O-Alkylation with alkyl halides or sulfonates in organic solvents; or O-acylation with acyl chlorides to construct the target molecular scaffold |
| Agrochemical R&D | Structural building block for exploring novel insecticidal or fungicidal candidate compounds | Serves as a core heterocyclic scaffold in coupling reactions (e.g., Suzuki, Heck) to introduce functional substituents for optimizing biological activity |
| Materials Science | Precursor for organic optoelectronic materials, used in the preparation of fluorescent dyes or ligands | Coordination with metal salts (e.g., Zn²⁺, Al³⁺) to form luminescent complexes; or bromination/iodination followed by cross-coupling to construct conjugated polymers |
Manufacturing Quality Control of 5,6-DIPHENYLPYRAZIN-2-OL
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 254 nm, comparing peak area against a certified reference standard. |
| Related Substances | HPLC-UV | Separation and quantification of impurities using gradient HPLC-UV; identification based on retention time matching and threshold limits per ICH Q3B. |
| Residual Solvents | GC-FID | Headspace GC with flame ionization detection to quantify volatile organic solvents (e.g., methanol, ethyl acetate) against calibrated standards. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration using iodine-based reagent to determine trace water content via stoichiometric reaction. |
| Heavy Metals | ICP-OES | Multi-element quantification of Pb, Cd, Hg, As, and Ni after acid digestion, using plasma emission spectroscopy with matrix-matched calibration. |
| Chloride Impurity | Ion Chromatography | Separation and conductivity detection of chloride ions in aqueous extract; quantified against sodium chloride standard. |
| Sulfated Ash | Gravimetric Analysis | Ignition of sample at 700-750 C followed by sulfuric acid treatment and final weighing of non-volatile residue. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, using calibrated digital apparatus per USP <741>. |
| Appearance | Visual Inspection | Assessment of physical state, color, and absence of visible particulates or discoloration under controlled white light against established reference. |
| Particle Size Distribution | Laser Diffraction | Measurement of particle size distribution in dry dispersion mode using Mie theory scattering analysis. |
| pH of Aqueous Suspension | pH Meter | Measurement of pH in a defined suspension (e.g., 1% w/v in water) using calibrated pH electrode per USP <791>. |
| Microbial Limits | Membrane Filtration | Quantitative enumeration of aerobic bacteria, yeasts, and molds using membrane filtration followed by culture on appropriate agar media. |
Technical Specifications of 5,6-DIPHENYLPYRAZIN-2-OL
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Melting Point | 148–152°C |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Conforms to reference standard |
| 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 5,6-DIPHENYLPYRAZIN-2-OL
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 5,6-DIPHENYLPYRAZIN-2-OL
Packaging of 5,6-DIPHENYLPYRAZIN-2-OL
Industrial 5,6-DIPHENYLPYRAZIN-2-OL 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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