QUINOLINE-8-SULFONIC ACID Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 85-48-3 |
| Product name | QUINOLINE-8-SULFONIC ACID |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeIndustrial 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 QUINOLINE-8-SULFONIC ACID
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk QUINOLINE-8-SULFONIC ACID Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of QUINOLINE-8-SULFONIC ACID
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Intermediate in the synthesis of antimicrobial agents and antimalarial drugs | Organic synthesis, sulfonation |
| Dyes | Dye intermediate for producing quinoline-based dyes | Coupling reaction, sulfonation modification |
| Electroplating | Electroplating additive to enhance metallic coating luster and uniformity | Electrolyte formulation |
| Chemical Analysis | Colorimetric reagent for detecting metal ions (e.g., iron, copper) | Complexation reaction, colorimetry |
| Agriculture | Raw material for synthesizing pesticides (e.g., insecticides) | Sulfonation, condensation reaction |
Manufacturing Quality Control of QUINOLINE-8-SULFONIC ACID
| Test Item | Common Test Methods | Method Overview |
|---|---|---|
| Content Determination | High-Performance Liquid Chromatography (HPLC) | Uses a reversed-phase C18 column, with methanol-buffer solution (e.g., phosphate or ammonium acetate) as the mobile phase. Detection is performed at around 254 nm using a UV detector. Quantification of the main component is carried out by external or internal standard method. |
| Purity Analysis | High-Performance Liquid Chromatography (HPLC) | Same as above. Purity of the main peak is evaluated by peak area normalization method. Impurity peaks are identified and their relative contents are checked to ensure compliance with specified total impurity limits. |
| Related Substances (Impurities) | High-Performance Liquid Chromatography (HPLC) | Impurities such as synthetic intermediates and degradation products are separated using a gradient elution program. Semi-quantitative or quantitative analysis is conducted based on response factors. |
| Structure Confirmation | Nuclear Magnetic Resonance Spectroscopy (NMR) | ¹H-NMR and ¹³C-NMR are used to confirm the compound structure by comparing characteristic peak chemical shifts with reference spectra. |
| Structure Confirmation | Mass Spectrometry (MS) | Molecular ion peaks ([M-H]⁻ or [M+H]+) are measured using ESI or EI ionization methods to confirm molecular weight. Structural information is analyzed based on fragment ion peaks. |
| Water Content | Karl Fischer Titration | Quantitative determination of water content by electrochemical reaction, applicable for accurate moisture control in solid or liquid samples. |
| Sulfonic Acid Group Content | Ionic Chromatography (IC) or Elemental Analysis | Ion chromatography measures free sulfonate ions; elemental analysis indirectly verifies the sulfonic acid group content by determining sulfur content. |
| Solution Clarity and Color | Visual Color Comparison or UV-Visible Spectrophotometry | The sample is prepared as a solution of defined concentration and compared with standard color solutions or scanned in the visible region to assess color conformity. |
| pH Value | pH Meter Method | The sample is dissolved in water or a specified solvent, and the pH of the solution is measured using a calibrated pH meter to control acidity. |
| Residual Solvents | Gas Chromatography (GC) | Headspace injection coupled with GC/FID is used to detect residual organic solvents (e.g., methanol, ethanol, dichloromethane) from the manufacturing process, in compliance with ICH limits. |
| Residue on Ignition / Sulfated Ash | Residue on Ignition Test | The sample is ignited at high temperature and the residual mass is weighed to evaluate the total inorganic impurities, commonly used in API quality control. |
Technical Specifications of QUINOLINE-8-SULFONIC ACID
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline solid |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 145–149°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=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 QUINOLINE-8-SULFONIC ACID
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of QUINOLINE-8-SULFONIC ACID
Packaging of QUINOLINE-8-SULFONIC ACID
Industrial QUINOLINE-8-SULFONIC ACID 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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