2,6-Diaminotoluene-4-sulfonic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 98-25-9 |
| Product name | 2,6-Diaminotoluene-4-sulfonic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical 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 2,6-Diaminotoluene-4-sulfonic acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2,6-Diaminotoluene-4-sulfonic acid Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2,6-Diaminotoluene-4-sulfonic acid
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Intermediate in the synthesis of azo dyes | Prepared via sulfonation, nitration, and reduction |
| Pharmaceutical Industry | Intermediate in drug synthesis | Used as a raw material for synthesizing certain antibiotics or pharmaceuticals |
| Organic Synthesis | Intermediate for synthesizing other organic compounds | Subjected to further reactions via functional group transformations of the amino and methyl groups |
Manufacturing Quality Control of 2,6-Diaminotoluene-4-sulfonic acid
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification using reversed-phase HPLC with UV detection at 254 nm, comparing peak area against a certified reference standard. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content based on the stoichiometric reaction of iodine with water in pyridine/methanol medium. |
| Residue on Ignition | Gravimetric Analysis | Heating sample to 750-800 C to combust organic matter, then weighing inorganic residue as sulfate ash. |
| Heavy Metals (as Pb) | AAS (Flame or Graphite Furnace) | Atomic absorption spectroscopy measuring absorbance of ground-state atoms in flame or graphite furnace after acid digestion. |
| Chloride Impurity | Ion Chromatography | Separation and quantification of chloride ions using anion-exchange column with conductivity detection. |
| Sulfate Impurity | ICP-OES | Inductively coupled plasma optical emission spectrometry measuring sulfur emission lines after microwave-assisted acid digestion. |
| pH of Aqueous Solution | Potentiometric Titration | Measurement of hydrogen ion activity using calibrated glass electrode in saturated aqueous suspension. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, observed visually in capillary tube under controlled heating. |
| Organic Volatile Impurities | GC-FID | Gas chromatography with flame ionization detection for separation and quantification of residual solvents and volatile organics. |
| Iron Content | Colorimetric Spectrophotometry (1,10-Phenanthroline) | Formation of orange-red Fe(II)-phenanthroline complex measured at 510 nm after reduction and chelation. |
| Appearance (Color and Physical State) | Visual Inspection | Comparison of crystalline solid against standard reference for color (e.g., white to pale yellow) and absence of foreign particles. |
| Bulk Density | Graduated Cylinder Method | Mass of material freely poured into calibrated cylinder divided by its settled volume. |
Technical Specifications of 2,6-Diaminotoluene-4-sulfonic acid
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Melting Point | 210–215°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 2,6-Diaminotoluene-4-sulfonic acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of 2,6-Diaminotoluene-4-sulfonic acid
Industrial 2,6-Diaminotoluene-4-sulfonic 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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