2,4-diaminophenol Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 95-86-3 |
| Product name | 2,4-diaminophenol |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeReagent GradeCosmetic GradeFood Grade |
| Packaging | 25L/drum |
| 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 2,4-diaminophenol
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,4-diaminophenol Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2,4-diaminophenol
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Synthesis of azo dyes and sulfur dyes | Used as a diazotization intermediate for preparing various colored dyes |
| Pharmaceutical Industry | Production of pharmaceutical intermediates | Applied in synthesizing biologically active compounds, such as precursors to anti-inflammatory and antimicrobial agents |
| Cosmetics Industry | Component of permanent hair dyes | Combined with oxidants (e.g., hydrogen peroxide) to undergo oxidative coupling under alkaline conditions, forming colorants |
| Polymer Materials | Curing agent for epoxy resins | Acts as an amine-based curing agent reacting with epoxy groups to enhance thermal stability and mechanical properties of the resin |
| Analytical Chemistry | Chemical reagent | Employed in colorimetric analysis for metal ion detection or as a reference standard in organic synthesis |
Manufacturing Quality Control of 2,4-diaminophenol
| Metric | Common Testing Methods | Method Overview |
|---|---|---|
| Content Determination | High-Performance Liquid Chromatography (HPLC) | Uses a C18 reversed-phase column with methanol/water or acetonitrile/water (with buffer) as the mobile phase, detected by UV detector (254–280 nm). Quantification is performed via external standard or internal standard method, offering high selectivity and accuracy. |
| Purity Analysis | High-Performance Liquid Chromatography (HPLC) | Same as content determination; purity of the main component is assessed using area normalization or impurity reference standard methods. Capable of simultaneously detecting potential impurities such as monomethylphenol and oxidation products. |
| Moisture Content | Karl Fischer Titration | Based on the quantitative reaction between iodine and water, measured via electrochemical or volumetric titration. Suitable for precise determination of trace moisture in organic solvents, compliant with pharmacopoeial standards. |
| Melting Point Determination | Capillary Melting Point Method | Sample is packed into a capillary tube and heated slowly while observing the melting process. Compared with literature values (~110–115°C) to assess crystalline purity and detect possible impurities. |
| Heavy Metal Residues | Atomic Absorption Spectroscopy (AAS) or ICP-MS | After acid digestion, samples are analyzed for lead, cadmium, mercury, and other heavy metals using AAS, or multi-element detection via ICP-MS. Complies with ICH Q3D guideline limits. |
| Chloride/Sulfate Impurities | Ion Chromatography (IC) | Separates chloride and sulfate ions using an anion-exchange column, with conductivity detection for quantification. Ideal for precise control of trace inorganic impurities. |
| Oxidative Impurities (e.g., quinones) | UV-Visible Spectrophotometry (UV-Vis) | Measures absorbance at specific wavelengths (e.g., 300–400 nm). Oxidation products (such as 2,4-diaminobenzoquinone) exhibit characteristic absorption, enabling indirect assessment of oxidation level. |
| Solvent Residuals | Gas Chromatography (GC) | Utilizes headspace or direct injection with capillary columns to separate residual organic solvents like methanol, ethanol, and acetone, detected by FID. Complies with ICH Q3C guidelines. |
| pH Measurement | Glass Electrode pH Meter Method | Sample is dissolved in water (e.g., 1% w/v), and pH is measured using a calibrated pH meter. Maintained within an appropriate range (typically 5.0–7.0) to ensure stability. |
| Water Solubility/Insoluble Matter | Gravimetric Method | Sample is dissolved in a specified volume of water, filtered, dried, and weighed. Used to evaluate physical purity and detect residual excipients or particulate matter from manufacturing processes. |
Technical Specifications of 2,4-diaminophenol
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Melting Point | 162-166°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| 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 2,4-diaminophenol
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Packaging of 2,4-diaminophenol
Industrial 2,4-diaminophenol 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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