4-Amino-5-methoxy-2-methylbenzensulfonic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 6471-78-9 |
| Product name | 4-Amino-5-methoxy-2-methylbenzensulfonic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeIndustrial GradeSpecialty 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-Amino-5-methoxy-2-methylbenzensulfonic acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Amino-5-methoxy-2-methylbenzensulfonic acid Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Amino-5-methoxy-2-methylbenzensulfonic acid
| Industry | Application | Process Description |
|---|---|---|
| Dye Industry | Synthesis of dye intermediates | Used in the synthesis of acid dyes, direct dyes, and reactive dyes |
| Pharmaceutical Industry | Synthesis of pharmaceutical intermediates | Serves as a synthetic precursor for certain anti-inflammatory and analgesic drugs |
| Pesticide Industry | Synthesis of pesticide formulations | Used as an intermediate in the synthesis of certain herbicides and fungicides |
| Chemical Synthesis | Organic synthesis reagent | Applied as a reagent for introducing sulfonic acid derivatives in organic synthesis |
Manufacturing Quality Control of 4-Amino-5-methoxy-2-methylbenzensulfonic acid
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the color and state of the sample under natural light or standard light source to determine if it is a white to off-white crystalline powder, and check for impurities or clumping. |
| Infrared Spectroscopy (IR) | Press the sample with potassium bromide and measure the infrared absorption spectrum. Compare it with the standard spectrum to confirm the presence of characteristic functional groups (such as —NH₂, —OCH₃, —SO₃H). | |
| Nuclear Magnetic Resonance Hydrogen Spectroscopy (¹H-NMR) | Dissolve the sample in deuterated solvent (e.g., DMSO-d₆), and use chemical shift and peak splitting information to confirm the molecular structure. | |
| Content Determination | High-Performance Liquid Chromatography (HPLC) | Use a reverse-phase C18 column, ultraviolet detector (e.g., 254 nm), with water-organic phase (e.g., methanol/acetone) containing ion-pair reagent or buffer gradient elution. Calculate the main component content using external standard or internal standard methods. |
| Moisture | Karl Fischer Titration | Determine the moisture content by titrating with Karl Fischer reagent. It is suitable for trace moisture analysis and provides accurate and reliable results. |
| Sulfonic Acid Group Content | Acid-Base Titration | Dissolve the sample in water or an appropriate solvent, and titrate the free sulfonic acid groups with standard NaOH solution. Calculate the sulfonic acid group content based on the volume consumed. |
| Related Substances (Impurities) | High-Performance Liquid Chromatography (HPLC) | Use the same conditions as content determination to detect and quantify related substances (such as raw material residues, oxidation products, isomers, etc.). Typically, individual impurities should be ≤0.5%, and total impurities ≤1.0%. |
| Melting Point | Capillary Melting Point Determination | Determine the melting temperature range of the sample using a melting point apparatus or capillary method, which is used for preliminary assessment of purity and consistency. |
| Residue on Ignition (Sulfate Ash) | Gravimetric Analysis | After high-temperature incineration, the residual matter is converted into sulfate. Weigh the residue to calculate its percentage, reflecting the content of inorganic impurities. |
| Heavy Metals | Thioacetamide Method (Chinese Pharmacopoeia Method) | Under weakly acidic conditions, heavy metals react with thioacetamide to form colored sulfides, and the concentration is determined by colorimetry. The limit is typically ≤20 ppm. |
| Chlorides | Silver Nitrate Turbidimetry | Add silver nitrate to the sample solution to form a cloudy suspension of silver chloride. Compare it with a standard chloride solution for turbidity to control inorganic chloride impurities. |
| Dry Loss | Thermogravimetric Analysis (TGA) or Oven Drying | Dry the sample at a specified temperature (e.g., 105°C) for a certain period of time. Calculate the volatile matter content based on the difference in weight before and after drying. |
Technical Specifications of 4-Amino-5-methoxy-2-methylbenzensulfonic acid
| Test Item | Specification |
|---|---|
| Appearance | White or Grey Powder |
| Purity | ≥85.0% |
| Water insolubles | ≤0.2% |
| heavy metals | ≤20 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-Amino-5-methoxy-2-methylbenzensulfonic acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Amino-5-methoxy-2-methylbenzensulfonic acid
Safety Information of 4-Amino-5-methoxy-2-methylbenzensulfonic acid
| Pictograms |  |
| Signal Word | Danger |
| Safety Data Sheet | |
Packaging of 4-Amino-5-methoxy-2-methylbenzensulfonic acid
Industrial 4-Amino-5-methoxy-2-methylbenzensulfonic 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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