4-Chloro-6,7-dimethoxyquinazoline Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 13790-39-1 |
| Product name | 4-Chloro-6,7-dimethoxyquinazoline |
| 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 4-Chloro-6,7-dimethoxyquinazoline
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Chloro-6,7-dimethoxyquinazoline Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Chloro-6,7-dimethoxyquinazoline
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Used as a pharmaceutical intermediate in the synthesis of kinase inhibitor–based anticancer drugs | Synthesized via multistep organic synthesis, including chlorination, methoxylation, and cyclization |
| Agrochemicals | Used as a precursor or intermediate for agrochemical active ingredients | Synthesized via quinazoline ring construction and substituent introduction |
| High-performance polymers | Employed as a structural unit in functional polymer design | Used as a heterocyclic monomer in polymerization to enhance thermal stability and electrical properties |
Manufacturing Quality Control of 4-Chloro-6,7-dimethoxyquinazoline
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reversed-phase HPLC with UV detection at 254 nm, based on peak area comparison against reference standard. |
| Related Substances | HPLC-UV | Detects and quantifies impurities by comparing retention times and peak areas to qualified reference standards or threshold-based reporting. |
| Residual Solvents | GC-FID | Separates and quantifies organic solvents (e.g., methanol, acetone, DMF) using capillary GC with flame ionization detection. |
| Water Content | Karl Fischer Titration | Determines trace water via coulometric or volumetric titration using iodine generation in pyridine-free reagent system. |
| Heavy Metals | ICP-MS | Measures total elemental impurities (Pb, Cd, Hg, As, etc.) after acid digestion using inductively coupled plasma mass spectrometry. |
| Chloride Ion | Ion Chromatography | Quantifies chloride anion using suppressed conductivity detection after separation on anion-exchange column. |
| Residue on Ignition | Gravimetric Analysis | Measures inorganic ash content by ignition at 700-800 C followed by precise weighing of residual residue. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid using calibrated capillary apparatus per USP <741>. |
| Appearance | Visual Inspection | Assesses physical state, color, and presence of foreign particles under controlled white light and specified viewing conditions. |
| Bulk Density | USP <616> Tap Density Method | Measures mass per unit volume after mechanical tapping of a known powder mass in a calibrated cylinder. |
| Particle Size Distribution | Laser Diffraction | Analyzes size distribution by measuring angular variation in intensity of laser light scattered by dispersed particles. |
| pH of Aqueous Suspension | pH Meter | Determines pH of a standardized suspension (e.g., 1% w/v in water) using calibrated pH electrode and buffer standards. |
Technical Specifications of 4-Chloro-6,7-dimethoxyquinazoline
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (by LC-MS) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 182–186°C |
| 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 4-Chloro-6,7-dimethoxyquinazoline
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Chloro-6,7-dimethoxyquinazoline
Safety Information of 4-Chloro-6,7-dimethoxyquinazoline
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 4-Chloro-6,7-dimethoxyquinazoline
Industrial 4-Chloro-6,7-dimethoxyquinazoline 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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