1,8-DICHLOROANTHRAQUINONE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 82-43-9 |
| Product name | 1,8-DICHLOROANTHRAQUINONE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeElectronic GradeMaterial 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 1,8-DICHLOROANTHRAQUINONE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 1,8-DICHLOROANTHRAQUINONE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 1,8-DICHLOROANTHRAQUINONE
| Industry | Application | Process |
|---|---|---|
| Textile Industry | Dye Intermediate | Used in the synthesis of anthraquinone dyes |
| Pharmaceutical Industry | Pharmaceutical Synthesis Intermediate | Involved in the preparation of chlorinated anthraquinone derivatives |
| Agrochemical Industry | Agrochemical Synthesis Intermediate | Used to prepare agrochemical compounds containing the anthraquinone structure |
| Lighting Industry | Fluorescent Brightener Intermediate | Applied in the synthesis of fluorescent compounds |
Manufacturing Quality Control of 1,8-DICHLOROANTHRAQUINONE
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Purity/Content Determination | High-Performance Liquid Chromatography (HPLC) | Using a reverse-phase C18 chromatographic column, with methanol-water or acetonitrile-water as the mobile phase, and a UV detector (typically at 254 nm or the maximum absorption wavelength) for detection. The content of 1,8-dichloroanthraquinone is calculated using external standard method or area normalization method. This method offers good separation, high sensitivity, and excellent repeatability, making it the most commonly used method in quality control. |
| Impurity Analysis | High-Performance Liquid Chromatography (HPLC) | Impurity detection is performed simultaneously under the same conditions as purity determination. Process impurities (e.g., unreacted raw materials, by-products) and degradation products are identified and quantified. Structural identification can be assisted by HPLC-MS. This ensures that the total impurity content and individual impurities meet the specified limits. |
| Melting Point Determination | Capillary Melting Point Method | The sample is placed into a melting point capillary and heated at a defined rate in a melting point apparatus. The initial and final melting temperatures are observed. The theoretical melting point of 1,8-dichloroanthraquinone is approximately 270–275 °C. A narrow melting range indicates high purity. |
| Dry Loss | Drying Loss Method | A certain amount of sample is placed in a pre-weighed and constant-weighted weighing bottle and dried at 105 °C until constant weight. The percentage loss in weight is calculated. This test assesses the moisture and volatile matter content in the sample, which is generally required to be ≤0.5%. |
| Residue on Ignition (Ash Content) | High-Temperature Combustion Method | The sample is carbonized and then ignited in a muffle furnace at 700–800 °C until constant weight. The residual inorganic material is weighed. This test is used to control inorganic impurities (such as residual metal catalysts), with a typical limit of ≤0.1%. |
| Heavy Metal Content | Atomic Absorption Spectrometry (AAS) or Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | After acid digestion of the sample, lead, cadmium, mercury, arsenic, and other heavy metal elements are determined using AAS or the more sensitive ICP-MS. The results must comply with the limits specified in pharmacopoeias or industry standards (e.g., ICH Q3D). |
| Appearance and Color | Visual Colorimetric Method | The color of the sample (usually orange-red to brown-red crystalline powder) and presence of foreign matter are observed under natural light or standard light source. When necessary, comparison with standard color solutions is made to ensure appearance meets specifications. |
Technical Specifications of 1,8-DICHLOROANTHRAQUINONE
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% (LC-MS) |
| Melting Point | 245–249 °C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=20 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 1,8-DICHLOROANTHRAQUINONE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 1,8-DICHLOROANTHRAQUINONE
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Industrial 1,8-DICHLOROANTHRAQUINONE 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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