4'-Aminoazobenzene-4-sulphonic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 104-23-4 |
| Product name | 4'-Aminoazobenzene-4-sulphonic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Reagent GradeIndustrial GradeSpecialty Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| 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'-Aminoazobenzene-4-sulphonic acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4'-Aminoazobenzene-4-sulphonic acid Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4'-Aminoazobenzene-4-sulphonic acid
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Intermediate for synthesizing azo dyes | Used in diazotization reactions, followed by coupling to produce colored dye compounds |
| Organic Synthesis | Raw material for organic pigments and functional dyes | Participates in coupling reactions to prepare pigment molecules with specific structures |
| Analytical Chemistry | Chemical reagent for metal ion detection | Acts as a colorimetric reagent for spectrophotometric determination of certain transition metal ions |
Manufacturing Quality Control of 4'-Aminoazobenzene-4-sulphonic acid
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the color, physical state, and presence of visible impurities. The pure substance is typically a brown-red or dark red crystalline powder, free from caking or foreign matter. |
| Melting Point Determination | Capillary Melting Point Method | Measure the melting temperature range using a melting point apparatus. This compound has a characteristic melting point (literature value approximately 200–210°C with decomposition), which can be used for preliminary assessment of purity and identity. |
| Content Determination | Ultraviolet-Visible Spectrophotometry (UV-Vis) | Utilize the strong absorbance at specific wavelengths (e.g., 350–450 nm) to determine the main component content via a standard calibration curve. Measurements should be performed in an appropriate pH buffer solution to ensure stability. |
| Related Substances / Impurity Analysis | High-Performance Liquid Chromatography (HPLC) | Use a reversed-phase C18 column with aqueous-methanol or buffer-organic solvent mobile phases to detect potential synthetic intermediates (e.g., aniline, sulfonation by-products) or degradation products. Purity is assessed by peak area normalization or external standard method. |
| Water Content | Karl Fischer Titration | Determine the total amount of bound and free water in the sample, suitable for controlling moisture loss indicators to ensure product stability. |
| Sulfonic Acid Group Content | Acid-Base Titration | Dissolve the sample in water and titrate with standardized NaOH solution to quantify the sulfonic acid groups (—SO₃H), verifying the integrity of the molecular structure. |
| Heavy Metal Content | Atomic Absorption Spectroscopy (AAS) or Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | After sample digestion, measure residues of toxic metals such as lead, arsenic, mercury, and cadmium to comply with pharmacopoeial or industrial safety standards (e.g., Chinese Pharmacopoeia, USP). |
| pH Value | pH Meter Method | Prepare a solution of specified concentration (e.g., 1% w/v in water) and measure the acidity or alkalinity using a calibrated pH meter to reflect its ionic characteristics and suitability for use. |
| Loss on Drying | Drying Method (Thermogravimetric Analysis optional) | Dry the sample at a specified temperature (e.g., 105°C) until constant weight is achieved, then calculate the percentage of volatile substances lost (primarily water). |
| Residue on Ignition | Gravimetric Method | Ignite the sample at high temperature and weigh the residual inorganic matter to assess the level of inorganic impurities, commonly used in pharmaceutical-grade quality control. |
Technical Specifications of 4'-Aminoazobenzene-4-sulphonic acid
| Test Item | Specification |
|---|---|
| Appearance | Orange solid |
| Purity | ≥97.0% |
| PAAB | ≤500 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'-Aminoazobenzene-4-sulphonic acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Safety Information of 4'-Aminoazobenzene-4-sulphonic acid
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 4'-Aminoazobenzene-4-sulphonic acid
Industrial 4'-Aminoazobenzene-4-sulphonic acid 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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