4',5'-DIBROMOFLUORESCEIN Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 596-03-2 |
| Product name | 4',5'-DIBROMOFLUORESCEIN |
| 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 4',5'-DIBROMOFLUORESCEIN
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4',5'-DIBROMOFLUORESCEIN Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4',5'-DIBROMOFLUORESCEIN
| Industry | Application | Process |
|---|---|---|
| Analytical Chemistry | Acid-base indicator (pH 2.1–3.8, red → yellow) | Dissolved directly in ethanol or aqueous ethanol solvent to prepare indicator solutions for titration endpoint detection |
| Biological Staining | Fluorescent stain for histology and cytology (labels acidic components) | Incubated with samples and visualized under blue-light excitation (~540 nm) for green fluorescence emission; commonly used for frozen sections or live-cell staining |
| Pharmaceutical R&D | Fluorescent probe intermediate (for synthesis of targeted diagnostic reagents) | Modified via selective bromine substitution or coupling reactions to construct molecular probes containing fluorescent reporter groups |
| Materials Science | Precursor for organic luminescent materials (for OLEDs or sensors) | Conjugated groups introduced via Suzuki or Heck coupling reactions, followed by thin-film deposition for electroluminescent device fabrication |
Manufacturing Quality Control of 4',5'-DIBROMOFLUORESCEIN
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 550 nm, comparing peak area against a certified reference standard. |
| Related Substances | HPLC-UV | Separation and quantification of impurities (e.g., monobrominated analogs, fluorescein) using gradient HPLC-UV; identification by retention time matching and relative response factors. |
| Loss on Drying | Gravimetric Method | Measurement of mass loss after drying under controlled temperature and vacuum to determine volatile content including residual solvents and moisture. |
| Residue on Ignition | Sulfated Ash Method | Determination of inorganic residue after high-temperature incineration following sulfuric acid treatment; reflects non-volatile inorganic impurities. |
| Heavy Metals | ICP-OES | Multi-element quantification of Pb, Cd, Hg, As, and other regulated metals after acid digestion, based on atomic emission intensity at characteristic wavelengths. |
| Chloride Content | Potentiometric Titration | Titration with silver nitrate using a silver indicator electrode; endpoint detected by potential change due to AgCl precipitation. |
| Bromine Content | Oxidative Combustion followed by Ion Chromatography | Total bromine quantified after high-temperature combustion and absorption, then measured as bromide ion via IC conductivity detection. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric determination of water based on stoichiometric reaction between iodine, sulfur dioxide, and water in pyridine/methanol medium. |
| pH of Aqueous Suspension | pH Meter Measurement | pH measured in a defined suspension (e.g., 1% w/v in water) using calibrated pH electrode; indicates acidic/basic degradation products. |
| Color | Visual Comparison or Colorimeter | Comparison of solution color (e.g., 0.1% in 0.1 M NaOH) against platinum-cobalt standards or measurement of yellowness index using spectrophotometer. |
| Solvent Residues | GC-FID | Identification and quantification of residual solvents (e.g., ethanol, acetone, DMF) using gas chromatography with flame ionization detection. |
| Particle Size Distribution | Laser Diffraction | Analysis of dry or dispersed powder using light scattering to determine D10, D50, and D90 values per ISO 13320. |
Technical Specifications of 4',5'-DIBROMOFLUORESCEIN
| Test Item | Specification |
|---|---|
| Appearance | Red crystalline powder |
| Purity | >=98.5% |
| Melting Point | 210-214°C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Residue on Ignition | <=0.1% |
| 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 4',5'-DIBROMOFLUORESCEIN
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4',5'-DIBROMOFLUORESCEIN
Packaging of 4',5'-DIBROMOFLUORESCEIN
Industrial 4',5'-DIBROMOFLUORESCEIN 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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