China Factory Direct
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| CAS number | 94-52-0 |
| Product name | 5-Nitrobenzimidazole |
| 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
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| Pharmaceuticals | Antimicrobial intermediate for synthesizing benzimidazole anthelmintics (e.g., oxfendazole, fenbendazole) | Undergoes N-alkylation with alkyl halides or sulfonates, followed by nitro group reduction to amino and subsequent cyclization or substitution modifications |
| Pesticides | Key intermediate for insecticides and anthelmintics | Participates in heterocycle construction reactions as a nitro-substituted precursor to the benzimidazole core, enabling synthesis of broad-spectrum anthelmintic compounds |
| Dyes | Synthesis intermediate for high-performance organic pigments and fluorescent dyes | Introduces chromophores via diazotization-coupling, reductive amination, and related reactions to enhance dye photostability and color fastness |
| Test Item | Common Testing Method | Method Overview |
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| Appearance | Visual Inspection | Observe the color, state, and whether it is clumped under natural light or standard light source to determine if it meets the specifications (usually a light yellow to yellow crystalline powder). |
| Identification | Infrared Spectroscopy (IR) | Measure the infrared absorption spectrum after pressing the sample with KBr, and compare it with the standard spectrum to confirm the presence of characteristic functional groups (such as N-H, C=N, NO₂, etc.). |
| Proton Nuclear Magnetic Resonance (¹H-NMR) | Dissolve the sample in a deuterated solvent (e.g., DMSO-d₆), and verify the molecular structure through chemical shift and peak splitting patterns. | |
| Content Determination | High-Performance Liquid Chromatography (HPLC) | Use a reversed-phase C18 column, with methanol-water or acetonitrile-buffer salt as the mobile phase, and a UV detector (~270–310 nm) for detection. Quantify the main component using external or internal standard methods. |
| Related Substances (Impurities) | High-Performance Liquid Chromatography (HPLC) | The same system is used to separate and detect possible synthetic intermediates, degradation products, and other impurities; total impurities are typically required to be no more than a specified limit (e.g., ≤0.5%). |
| Loss on Drying | Thermogravimetric Analysis (TGA) or Oven Method | Dry at a specified temperature (e.g., 105°C) for a certain period (e.g., 2–4 hours), and measure the percentage of mass loss to assess moisture and volatile impurity content. |
| Residue on Ignition (Sulfate Ash) | Gravimetric Method | Treat the sample with sulfuric acid and then incinerate at high temperature (about 600–800°C). Weigh the residual inorganic matter to evaluate the content of inorganic impurities. |
| Heavy Metals | Sulfide Colorimetric Method (Chinese Pharmacopoeia Method) | Under acidic conditions, heavy metals react with sodium sulfide to form a colored precipitate, which is measured by colorimetry; the limit is usually ≤20 ppm. |
| Chlorides | Silver Nitrate Turbidimetric Method | Add silver nitrate to the sample solution to generate a turbid silver chloride precipitate, and compare it with a standard chloride solution to control chloride ion impurities. |
| Melting Point | Capillary Melting Point Determination | Use a melting point apparatus or capillary method to determine the melting temperature range; the typical melting point of 6-nitrobenzimidazole is approximately 210–215°C (reference value from literature). |
| Test Item | Specification |
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| Appearance | Off-white crystalline solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 275-279 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.