2',7'-Dichlorofluorescein Bulk Supply for Industrial Use
China Factory Direct
 |
|
| CAS number | 76-54-0 |
| Product name | 2',7'-Dichlorofluorescein |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty GradeReagent GradeCosmetic GradeFood 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) |
QUOTE TYPE
PACKAGING TYPE
TOTAL QUANTITY(KG)
PREFERRED SHIPPING METHOD
YOUR COMPANY
YOUR E-MAIL
Calculate Summary
Based on current marketvolatility and material availability.
Documents We Provide for 2',7'-Dichlorofluorescein
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2',7'-Dichlorofluorescein Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2',7'-Dichlorofluorescein
| Industry | Application | Process |
|---|---|---|
| Analytical Chemistry | pH indicator | Used to indicate changes in solution pH through a color shift, transitioning from yellow to red at approximately pH 3.0. |
| Pharmaceuticals | Intermediate in drug synthesis | Applied in the construction of specific drug molecules as a step within the synthetic pathway. |
| Dyeing & Printing | Dye | Applied for coloring textiles and other materials, particularly where specialized visual effects or hues are required. |
| Cosmetics | Pigment additive | Added as a colorant to cosmetic formulations to achieve the desired shade. |
| Scientific Research & Education | Laboratory reagent | Used in laboratory settings for teaching demonstrations or scientific research, such as acid-base titration experiments. |
Manufacturing Quality Control of 2',7'-Dichlorofluorescein
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Quantifies main component concentration using molar absorptivity at characteristic absorption maximum (~490 nm in alkaline medium) |
| Loss on Drying | Gravimetric Analysis | Measures mass loss after drying at 105 C for 2 h to determine volatile content |
| Residue on Ignition | Gravimetric Analysis | Determines inorganic ash content by high-temperature incineration (600-800 C) followed by weighing |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) | Quantifies Pb, Cd, Hg, As, and other toxic metals via atomization and absorbance measurement at element-specific wavelengths |
| Chloride Impurity | Potentiometric Titration | Measures chloride ion concentration using silver nitrate titrant and silver indicator electrode |
| Sulfate Impurity | Gravimetric Analysis | Precipitates sulfate as barium sulfate and determines mass after filtration and drying |
| Water Content | Karl Fischer Titration | Determines trace water via stoichiometric reaction between water, iodine, sulfur dioxide, and base in methanol medium |
| pH of Aqueous Solution | Potentiometric pH Measurement | Measures hydrogen ion activity in 1% w/v aqueous solution using calibrated glass electrode |
| Organic Volatile Impurities | Gas Chromatography (GC-FID) | Separates and quantifies residual solvents (e.g., ethanol, acetone) using flame ionization detection |
| Related Substances | High-Performance Liquid Chromatography (HPLC-UV) | Detects and quantifies structurally related impurities using reversed-phase C18 column and UV detection at 254/490 nm |
| Melting Point | Capillary Melting Point Determination | Identifies purity and identity by measuring temperature range at which solid transitions to liquid |
| Solubility in Water | Visual Observation Test | Evaluates complete dissolution behavior in specified volume of distilled water at 25 C within defined time |
Technical Specifications of 2',7'-Dichlorofluorescein
| Test Item | Specification |
|---|---|
| Appearance | Brown solid |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 290-295°C (decomposes) |
| 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
|
|
Download COA of 2',7'-Dichlorofluorescein
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2',7'-Dichlorofluorescein
Packaging of 2',7'-Dichlorofluorescein
Industrial 2',7'-Dichlorofluorescein 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.
Use Bulk
Supply Factory
Direct ISO 9001
Certified Samples
Available Stable
Supply