Diammonium 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonate) Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 30931-67-0 |
| Product name | Diammonium 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonate) |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial Grade |
| Packaging | 25KG/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 30931-67-0
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 30931-67-0 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 30931-67-0
| Industry | Application | Process |
|---|---|---|
| Textiles | Dyes | Used in reactive dyes for covalent bonding with cellulosic fibers |
| Printing & Dyeing | Lakes | Applied as reactive lakes to improve wash fastness |
| Leather Processing | Dyeing Agents | Applied in leather dyeing to ensure uniform dye distribution and effective fixation |
| Plastics | Colorants | Used for coloring plastic products to enhance color brightness and lightfastness |
Manufacturing Quality Control of 30931-67-0
| Detection Item | Common Testing Methods | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the sample's color and physical state; qualified products are typically light green to dark green crystals or powder with no visible impurities. |
| Purity (Content) | High-Performance Liquid Chromatography (HPLC) | Use of reversed-phase chromatographic column with UV detection (e.g., 265 nm or 734 nm), quantification via external standard method or area normalization. |
| Absorbance (Oxidizing Capacity) | Spectrophotometry (ABTS⁺· Radical Method) | ABTS is oxidized to generate stable blue-green ABTS⁺· radicals, and absorbance is measured at 734 nm to evaluate reaction activity. |
| Moisture Content | Karl Fischer Titration | Determine water content using coulometric or volumetric Karl Fischer titration; ensure compliance with drying loss specifications (typically ≤5%). |
| pH Value | pH Meter Measurement | Prepare an aqueous solution at a specified concentration (e.g., 1% w/v), then measure pH using a calibrated pH meter (typically pH 5–7). |
| Solubility | Dissolution Test | Observe dissolution rate and clarity in specified solvents (e.g., water, buffer); should dissolve readily with a clear, transparent solution. |
| Heavy Metal Residues | Atomic Absorption Spectroscopy (AAS) or ICP-MS | After sample digestion, determine levels of lead, arsenic, mercury, cadmium, and other elements; must comply with pharmacopeial or reagent standard limits. |
| Sulfated Ash | Ignition Residue Method | Sample treated with sulfuric acid, then incinerated at high temperature; weigh residual ash to assess total inorganic impurities (typically ≤0.1%). |
| Stability (Accelerated Stability Test) | Accelerated Stability Testing + HPLC Monitoring | Store samples under high temperature and humidity conditions; periodically sample and analyze by HPLC to monitor changes in main component and assess degradation trends. |
| Impurity Profiling | LC-MS or HPLC-DAD | Use mass spectrometry or diode array detection to identify and quantify relevant impurities (e.g., synthesis by-products or degradation products). |
Technical Specifications of 30931-67-0
| Test Item | Specification |
|---|---|
| Appearance | Light-green solid |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.3% |
| Melting Point | 285–290 °C (decomposes) |
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 30931-67-0
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 30931-67-0
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Industrial 30931-67-0 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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