4-Hydroxyquinazoline Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 491-36-1 |
| Product name | 4-Hydroxyquinazoline |
| 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-Hydroxyquinazoline
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Hydroxyquinazoline Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Hydroxyquinazoline
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthesis of pharmaceutical intermediates | Used in organic synthesis |
| Agrochemicals | Synthesis of insecticide or herbicide intermediates | Applied in chemical synthesis |
| Research & Development | Chemical reagents or research reference standards | Applied in purification or custom synthesis |
| Materials Science | Precursors for functional materials | Applied in polymerization or polymer modification |
Manufacturing Quality Control of 4-Hydroxyquinazoline
| Detection Item | Common Testing Method | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the sample's color, physical state, and presence of visible foreign particles under natural light or standard illumination. |
| Melting Point | Capillary Melting Point Determination | Determine the temperature range from initial melting to complete melting using a melting point apparatus, used to assess purity and material characteristics. |
| Content Determination | High-Performance Liquid Chromatography (HPLC) | Utilize a reversed-phase C18 column with UV detection (e.g., 254 nm), quantifying 4-hydroxyquinazoline content via external standard or internal standard method. |
| Related Substances (Impurities) | High-Performance Liquid Chromatography (HPLC) | Separate main component from impurities using gradient or isocratic elution, detect and quantify impurity peaks to evaluate sample purity. |
| Solubility | Solubility Test | Add the sample to solvents such as water, ethanol, methanol, acetone, etc., shake and observe dissolution behavior to determine solubility performance. |
| Drying Loss | Thermogravimetric Analysis (TGA) or Oven Method | Dry the sample at a specified temperature (e.g., 105°C) until constant weight, calculate the percentage of mass loss to assess moisture and volatile components. |
| Residue on Ignition | Sulfate Ash Method | Measure the inorganic residue after high-temperature incineration, reflecting the level of inorganic impurities. |
| Moisture Content | Karl Fischer Titration | Use a specific reaction to accurately determine trace moisture levels in samples, suitable for precise measurement of low-moisture materials. |
| Structural Confirmation | Infrared Spectroscopy (IR), Nuclear Magnetic Resonance (NMR), Mass Spectrometry (MS) | Use IR to confirm functional groups, ¹H-NMR/¹³C-NMR for molecular structure analysis, MS for molecular weight and fragmentation information; integrate results to verify chemical structure. |
| Polymorphic Analysis | X-Ray Powder Diffraction (XRPD) | Analyze characteristic diffraction peaks of crystalline structure to identify different polymorphs or determine amorphous nature. |
Technical Specifications of 4-Hydroxyquinazoline
| Test Item | Specification |
|---|---|
| Appearance | Off-white solid |
| Purity | >=98.0% (LC-MS) |
| Melting Point | 215–219 °C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=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-Hydroxyquinazoline
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Hydroxyquinazoline
Packaging of 4-Hydroxyquinazoline
Industrial 4-Hydroxyquinazoline 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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