Quinoxaline Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 91-19-0 |
| Product name | Quinoxaline |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial 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 Quinoxaline
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Quinoxaline Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Quinoxaline
| Industry | Application | Process |
|---|---|---|
| Pesticides | Fungicides (e.g., quinoxaline-2-carboxylic acid derivatives for controlling rice sheath blight and wheat scab) | Used to prepare active ingredients via substitution or condensation reactions with haloalkanes, amines, etc. |
| Pharmaceuticals | Pharmaceutical intermediates (for synthesizing antitumor, antiviral, and antibacterial agents, such as quinoxalinone derivatives) | Applied in multi-step organic synthesis—including nitration, reduction, cyclization, and acylation—to construct the quinoxaline core structure |
| Dyes | Intermediates for fluorescent brighteners and organic pigments | Employed as a heterocyclic scaffold in molecular design and coupling reactions for azo dyes or fluorescent dyes |
| Materials Science | Monomers for organic light-emitting diode (OLED) electron-transport materials and optoelectronic functional materials | Utilized in constructing conjugated polymers or small-molecule electron-transport layers via Suzuki coupling, Ullmann reaction, etc. |
Manufacturing Quality Control of Quinoxaline
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the sample's color, physical state, and presence of visible impurities under natural or standard lighting conditions. |
| Melting Point | Capillary Melting Point Method | The sample is packed into a capillary tube and heated in a melting point apparatus; the initial and final melting temperatures are recorded to assess purity and substance consistency. |
| Assay | High-Performance Liquid Chromatography (HPLC) | Uses a reversed-phase column (e.g., C18) and a UV detector (typically around 254 nm) to quantify quinoxaline content via external or internal standard methods. |
| Purity Analysis | Gas Chromatography-Mass Spectrometry (GC-MS) | The sample is vaporized, separated by gas chromatography, and analyzed by mass spectrometry to identify impurities and evaluate the purity of the main component. |
| Impurity Testing | High-Performance Liquid Chromatography (HPLC) | HPLC is used to separate potential organic impurities (e.g., intermediates, isomers), followed by qualitative and quantitative analysis by comparison with reference standards. |
| Moisture Content | Karl Fischer Titration | An electrochemical titration method for determining moisture content in samples; suitable for trace water detection with high accuracy. |
| Residual Solvents | Gas Chromatography (GC) | According to pharmacopoeial methods (e.g., Chinese Pharmacopoeia, USP), residual organic solvents (such as methanol, ethanol) from manufacturing are detected using headspace sampling coupled with GC. |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) or ICP-MS | After sample digestion, levels of heavy metal elements such as lead, cadmium, mercury, and arsenic are measured to ensure compliance with safety limits. |
| Structural Confirmation | Nuclear Magnetic Resonance Spectroscopy (NMR) | ¹H-NMR and ¹³C-NMR are used to confirm the molecular structure of quinoxaline, ensuring consistency with the target compound. |
| Polymorphic Form Analysis (if applicable) | X-Ray Diffraction (XRD) | If quinoxaline exhibits polymorphism, XRD can be used to analyze its crystal structure and ensure batch-to-batch consistency. |
Technical Specifications of Quinoxaline
| Test Item | Specification |
|---|---|
| Appearance | Brown solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 52–56°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| 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 Quinoxaline
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Quinoxaline
Packaging of Quinoxaline
Industrial Quinoxaline 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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