Rhodanine Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 141-84-4 |
| Product name | Rhodanine |
| 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 Rhodanine
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Rhodanine Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Rhodanine
| Industry | Application | Process |
|---|---|---|
| Chemical Reagents | Used as analytical reagents for detection and separation of metal ions | Formulated as colorimetric or precipitating agents to enable qualitative or quantitative analysis based on color change or precipitate formation |
| Organic Synthesis | Used as an intermediate in the synthesis of dyes, pharmaceuticals, and functional materials | Incorporated into molecular structures via condensation, oxidation, or coupling reactions as part of multi-step synthetic pathways |
| Dye Industry | Used in the production of certain acid dyes and mordant dyes | Applied as a dye intermediate or auxiliary in diazotization-coupling or complexation reactions |
| Pharmaceutical Industry | Used as a drug synthesis intermediate in the development of anti-inflammatory and antimicrobial compounds | Employed in acylation, alkylation, and other reactions to construct target drug scaffolds |
| Materials Science | Used to prepare functional materials with specific optical or electrical properties | Acted as a ligand in the synthesis of metal complexes for optoelectronic materials or catalyst supports |
Manufacturing Quality Control of Rhodanine
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Acid-Base Titration with NaOH | Rothenone reacts quantitatively with standardized sodium hydroxide; endpoint detected potentiometrically or with phenolphthalein. |
| Moisture Content | Karl Fischer Titration | Quantitative reaction of water with iodine and sulfur dioxide in pyridine/methanol medium; coulometric or volumetric determination. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Sample digested and atomized; absorbance measured at characteristic wavelength for lead. |
| Sulfate Impurity | Gravimetric Analysis | Precipitation as barium sulfate after acidification and addition of barium chloride; dried and weighed. |
| Chloride Impurity | Potentiometric Titration with AgNO3 | Titration with silver nitrate using silver indicator electrode; endpoint corresponds to AgCl precipitation completion. |
| Residue on Ignition | Gravimetric Analysis | Sample ignited at 700-800 C; residue weighed after cooling in desiccator. |
| Melting Point | Capillary Melting Point Determination | Solid sample heated gradually in capillary tube; temperature range observed at phase transition. |
| Organic Volatile Impurities | Gas Chromatography (GC-FID) | Volatile impurities separated on capillary column and detected by flame ionization detector. |
| Iron Content | UV-Vis Spectrophotometry (1,10-Phenanthroline method) | Fe2+ forms orange-red complex with 1,10-phenanthroline; absorbance measured at ~510 nm. |
| pH of Aqueous Solution | pH Meter Measurement | Aqueous suspension (1% w/v) equilibrated and measured with calibrated pH electrode. |
| Particle Size Distribution | Laser Diffraction | Dry or wet dispersion analyzed via light scattering pattern to determine size distribution. |
| Specific Optical Rotation | Polarimetry | Rotation of plane-polarized light measured in solution at specified concentration, path length, and temperature. |
Technical Specifications of Rhodanine
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 128–132°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=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 Rhodanine
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Rhodanine
Packaging of Rhodanine
Industrial Rhodanine 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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