Hematoxylin Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 517-28-2 |
| Product name | Hematoxylin |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty GradeReagent Grade |
| Packaging | 25KG/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 Hematoxylin
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Hematoxylin Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Hematoxylin
| Industry | Application | Process |
|---|---|---|
| Medical/Pathological | Nuclear staining in tissue sectioning | Used in hematoxylin and eosin (H&E) staining, typically combined with mordants (e.g., aluminum or iron salts) to form complexes that selectively stain DNA in cell nuclei |
| Biological Research | Nuclear counterstain in microscopy sample preparation | Applied as a counterstain to fixed samples in histology and cytology to enhance contrast of cellular structures |
| Textile Industry | Natural dye (historical use) | Combined with mordants (e.g., alum, iron salts) for dyeing natural fibers such as cotton and silk, yielding blue-black to purplish-black shades |
| Analytical Chemistry | Metal ion indicator (e.g., for aluminum, lead, beryllium) | Leveraged for colorimetric analysis or endpoint indication in titrations, based on formation of colored complexes with specific metal ions |
Manufacturing Quality Control of Hematoxylin
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Measures absorbance at characteristic wavelength (e.g., ~550 nm) and calculates concentration using Beer-Lambert law and reference standard calibration. |
| Moisture Content | Karl Fischer Titration | Quantifies water via stoichiometric reaction between water, iodine, sulfur dioxide, and base in methanol medium. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Determines total heavy metal content after acid digestion by measuring atomic absorption of specific elemental wavelengths. |
| Residue on Ignition | Gravimetric Analysis | Measures non-volatile inorganic impurities by weighing residue remaining after high-temperature ashing. |
| Chloride Impurity | Potentiometric Titration with AgNO3 | Detects chloride ions by titration with silver nitrate using silver indicator electrode; endpoint corresponds to AgCl precipitation completion. |
| Sulfate Impurity | Barium Sulfate Gravimetry | Precipitates sulfate as BaSO4 under controlled acidic conditions and determines mass by gravimetric measurement. |
| Related Substances | HPLC-UV | Separates and quantifies structurally related impurities using reversed-phase chromatography and UV detection at appropriate wavelength. |
| Melting Point | Capillary Melting Point Determination | Measures temperature range at which solid transitions to liquid using calibrated capillary apparatus and controlled heating rate. |
| Solubility in Ethanol | Visual Dissolution Test | Evaluates complete dissolution in specified volume of ethanol at defined temperature and time by visual inspection. |
| pH of Aqueous Solution | pH Potentiometry | Measures hydrogen ion activity in saturated aqueous solution using calibrated pH electrode and reference buffer. |
| Iron Impurity | Colorimetric Method with 1,10-Phenanthroline | Forms orange-red Fe(II)-phenanthroline complex; quantified by absorbance measurement at ~510 nm. |
| Loss on Drying | Thermogravimetric Analysis (TGA) | Determines volatile content by measuring mass loss upon controlled heating to specified temperature under inert or air atmosphere. |
Technical Specifications of Hematoxylin
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 137–141 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
| Solubility | Soluble in ethanol, methanol, and glacial acetic acid; slightly soluble in water |
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 Hematoxylin
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Hematoxylin
Packaging of Hematoxylin
Industrial Hematoxylin 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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