1520-70-3 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 1520-70-3 |
| Product name | 1520-70-3 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural 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 1520-70-3
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 1520-70-3 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 1520-70-3
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Organic synthesis intermediate for antitumor and antiviral drugs (e.g., certain sulfonamide derivatives) | Acts as a nucleophile in condensation and substitution reactions to construct C–N bonds under mild conditions with aldehydes, ketones, or alkyl halides |
| Agrochemicals | Structural building block for insecticides and fungicides, enhancing molecular lipophilicity and target binding affinity | Linked to heterocyclic cores (e.g., pyrimidine, triazole) via sulfonamide bond formation, followed by multi-step coupling and cyclization to synthesize active ingredients |
| Dyes | Modifying agent for auxochromes in azo and reactive dyes, improving lightfastness and fixation rate | Couples with diazonium salts under alkaline conditions, or undergoes nucleophilic substitution with cellulose hydroxyl groups to achieve covalent bonding |
Manufacturing Quality Control of 1520-70-3
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 210 nm, based on peak area comparison against a certified reference standard. |
| Water Content | Karl Fischer Titration | Volumetric titration using iodine, sulfur dioxide, and pyridine in methanol to determine water content via stoichiometric reaction. |
| Residue on Ignition | Gravimetric Analysis | Heating sample to 750 C in a platinum crucible, then weighing the non-volatile inorganic residue after cooling. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification of heavy metals by measuring atomic emission intensities of plasma-excited elements. |
| Chloride Impurity | Potentiometric Titration | Titration with silver nitrate using a silver indicator electrode; endpoint detected by potential change due to AgCl precipitation. |
| Sulfate Impurity | Turbidimetric Method | Reaction with barium chloride under acidic conditions to form BaSO4 precipitate; quantified by measuring light scattering. |
| Related Substances | HPLC-DAD | Separation and identification of structurally similar impurities using HPLC coupled with diode-array detection for spectral confirmation. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, measured by controlled heating of capillary-packed sample. |
| pH of Aqueous Solution | pH Meter | Measurement of hydrogen ion activity in a 1% w/v aqueous solution using calibrated glass electrode system. |
| Appearance | Visual Inspection | Assessment of physical state, color, and clarity against standard references under controlled white-light illumination. |
| Solubility in Water | Qualitative Solubility Test | Observation of complete dissolution of 1 g sample in 10 mL distilled water at 25 C with gentle agitation for 5 minutes. |
| Loss on Drying | Thermogravimetric Analysis (TGA) | Weight loss measured after heating sample at 105 C for 2 hours under dry air flow, indicating volatile content including residual solvents. |
Technical Specifications of 1520-70-3
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline solid |
| Purity | >=98.0% (GC) |
| Melting Point | 128–132°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
| Odor | Characteristic sulfonamide odor |
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 1520-70-3
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 1520-70-3
Packaging of 1520-70-3
Industrial 1520-70-3 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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