4-Aminophenol sulfate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 63084-98-0 |
| Product name | 4-Aminophenol sulfate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeIndustrial GradeSpecialty GradeMaterial 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-Aminophenol sulfate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Aminophenol sulfate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Aminophenol sulfate
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Manufacturing | Key intermediate in the synthesis of the antipyretic and analgesic drug paracetamol (acetaminophen) | Acetylated with acetic anhydride or acetyl chloride under acidic conditions to produce paracetamol |
| Dye Industry | Important intermediate for synthesizing azo dyes, sulfur dyes, and fur-dyeing agents | Azo dyes prepared via diazotization–coupling reactions; sulfur dyes synthesized by reaction with sulfur or sodium polysulfide |
| Rubber Additives | Alternative intermediate for producing antioxidants such as antioxidant P (N-phenyl-β-naphthylamine), used in rubber stabilization against oxidation | Integrated into antioxidant molecule construction via condensation and reduction steps; however, its use is being progressively replaced by more environmentally compatible intermediates |
| Pesticide Manufacturing | Synthetic intermediate for certain insecticides and fungicides (e.g., benomyl derivatives) | Acts as an aromatic amine building block in cyclization or substitution reactions to construct biologically active heterocyclic systems |
Manufacturing Quality Control of 4-Aminophenol sulfate
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (p-Aminophenol Sulfate) | Acid-Base Titration | Direct titration with standardized NaOH after dissolution and neutralization of free acid. |
| Moisture Content | Karl Fischer Titration | Quantitative determination of water by coulometric or volumetric reaction with iodine in pyridine-methanol medium. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Measurement of absorbance of ground-state atoms vaporized in flame or graphite furnace. |
| Sulfate Content | Gravimetric Analysis | Precipitation as BaSO4 followed by drying and weighing of the precipitate. |
| Chloride Impurity | Potentiometric Titration | Titration with AgNO3 using silver electrode to detect endpoint via potential change. |
| Iron (Fe) Content | ICP-OES | Excitation of atomized sample in plasma followed by measurement of element-specific emission wavelengths. |
| p-Aminophenol Related Substances | HPLC-UV | Separation on reversed-phase column and quantification using UV detection at 254 nm. |
| Loss on Drying | Thermogravimetric Analysis (TGA) | Mass loss measured upon heating under controlled conditions to determine volatile content. |
| pH of Aqueous Solution | pH Meter Measurement | Electrochemical measurement of hydrogen ion activity in a defined aqueous suspension. |
| Residue on Ignition | Ignition and Gravimetry | Heating to 700-800 C to oxidize organic matter, then weighing inorganic residue. |
| Particle Size Distribution | Laser Diffraction | Analysis of light scattering pattern from dispersed particles to calculate size distribution. |
| Bulk Density | Tap Density Measurement | Mass per unit volume after standardized mechanical tapping of a known powder mass. |
Technical Specifications of 4-Aminophenol sulfate
| Test Item | Specification |
|---|---|
| Appearance | Off white to light gray crystals |
| Purity | ≥98.0% |
| Loss on drying | ≤1.0% |
| Ash | ≤1.0% |
| Fe | ≤100 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-Aminophenol sulfate
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| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Aminophenol sulfate
Packaging of 4-Aminophenol sulfate
Industrial 4-Aminophenol sulfate 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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