ERYTHROSIN B Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 15905-32-5 |
| Product name | ERYTHROSIN B |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical 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 ERYTHROSIN B
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk ERYTHROSIN B Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of ERYTHROSIN B
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Used as a contrast agent for imaging of vascular and lymphatic systems | Administered via intravenous injection or topical application; distribution monitored using X-ray or fluorescence imaging |
| Biological Research | Fluorescent label for cell and tissue staining | Conjugated to target molecules, followed by visualization analysis under fluorescence microscopy |
| Analytical Chemistry | Indicator for colorimetric or fluorescent detection | Excited at specific wavelengths to generate fluorescent signals for quantitative or qualitative analysis |
| Materials Science | Development of fluorescent sensing materials | Incorporated into polymer matrices via doping or covalent bonding to construct optically responsive devices |
Manufacturing Quality Control of ERYTHROSIN B
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Quantifies tetraiodofluorescein concentration based on absorbance at characteristic wavelength (e.g., ~540 nm) using molar absorptivity and Beer-Lambert law. |
| Loss on Drying | Gravimetric Analysis (Thermogravimetry) | Measures mass loss after drying at specified temperature (e.g., 105 C) to determine volatile content including residual solvents and moisture. |
| Residue on Ignition | Gravimetric Analysis (Sulfated Ash) | Determines inorganic impurities by igniting sample at high temperature (e.g., 700–800 C) and weighing residual sulfate ash. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantifies total heavy metals via flame or graphite furnace AAS after acid digestion and chelation, reported as lead equivalent. |
| Chloride Impurity | Potentiometric Titration with AgNO3 | Measures chloride ions by titration with silver nitrate using silver indicator electrode; endpoint detected by potential change. |
| Sulfate Impurity | Gravimetric Analysis (Barium Sulfate Precipitation) | Precipitates sulfate as BaSO4 under controlled pH and temperature, followed by filtration, drying, and weighing. |
| Related Substances | High Performance Liquid Chromatography (HPLC) | Separates and quantifies structurally related impurities (e.g., diiodo-, triiodo-fluorescein) using reverse-phase C18 column and UV detection. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Determines acidity/basicity of a defined aqueous suspension or solution using calibrated pH electrode. |
| Solvent Residues (e.g., Ethanol, Acetone) | Gas Chromatography (GC-FID) | Detects and quantifies residual organic solvents by separation on capillary column and flame ionization detection. |
| Particle Size Distribution | Laser Diffraction | Measures size distribution of solid particles in suspension using angular scattering pattern of laser light. |
| Water Content | Karl Fischer Titration | Determines trace water content via coulometric or volumetric titration with iodine-based reagent reacting stoichiometrically with water. |
| Microbial Limits | Membrane Filtration and Colony Counting | Assesses bioburden by filtering sample through membrane, culturing on appropriate media, and enumerating viable colonies. |
Technical Specifications of ERYTHROSIN B
| Test Item | Specification |
|---|---|
| Appearance | Red orange powder |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Melting Point | 315-320 °C (decomposes) |
| Identification (NMR) | Consistent with structure |
| Heavy Metals | <=20 ppm |
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 ERYTHROSIN B
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of ERYTHROSIN B
Packaging of ERYTHROSIN B
Industrial ERYTHROSIN B 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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