China Factory Direct
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| CAS number | 716-79-0 |
| Product name | 2-Phenylbenzimidazole |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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 |
|---|---|---|
| Cosmetics Industry | Ultraviolet (UV) Absorber (UV Filter) | Added to sunscreen formulations to absorb UV-B radiation and protect skin from damage; commonly used in combination with other UV filters. |
| Polymer Materials Industry | Photostabilizer | Incorporated during the processing of plastic products such as polypropylene and polyethylene to prevent photo-oxidative degradation under light exposure, thereby extending product service life. |
| Coatings Industry | Ultraviolet (UV) Absorber | Added to varnishes and coating systems to prevent discoloration, chalking, or cracking of the film and enhance coating weatherability. |
| Fine Chemicals Industry | Pharmaceutical and Chemical Intermediate | Used as a building block in chemical synthesis—e.g., substitution and condensation reactions—to produce other organic compounds or active pharmaceutical ingredients, leveraging its imidazole and phenyl ring structures. |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification by peak area comparison against a certified reference standard using reversed-phase chromatography and UV detection at ~254 nm. |
| Identity | FTIR Spectroscopy | Confirmation via comparison of sample infrared absorption spectrum with reference spectrum, focusing on characteristic N-H, C=N, and aromatic C=C bands. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, indicating purity and identity based on sharpness and agreement with literature value (~185-187 C). |
| Loss on Drying | Gravimetric (Oven Drying) | Measurement of mass loss after drying at 105 C for 2 hours, reflecting volatile impurities and residual solvents. |
| Residue on Ignition | Sulfated Ash (Gravimetric) | Quantification of inorganic residue after high-temperature combustion (~750 C) followed by sulfuric acid treatment and weighing. |
| Heavy Metals (as Pb) | AAS (Flame or Graphite Furnace) | Atomic absorption measurement of total heavy metals after wet digestion, reported as lead equivalent using standard addition or calibration curve. |
| Chloride Impurity | Potentiometric Titration (AgNO3) | Titration with silver nitrate using a silver indicator electrode; endpoint detected by potential change due to AgCl precipitation. |
| Sulfate Impurity | Barium Sulfate Gravimetry | Precipitation of sulfate as BaSO4 in acidic medium, followed by filtration, drying, and weighing of the insoluble residue. |
| Related Substances | HPLC-DAD | Separation and detection of structurally similar impurities (e.g., benzidine derivatives, unreacted o-phenylenediamine) using gradient HPLC with diode-array detection. |
| Water Content | Karl Fischer Titration | Coulometric or volumetric titration with iodine-based reagent; water reacts stoichiometrically to determine trace moisture content. |
| Organic Volatile Impurities | GC-FID | Detection and quantification of residual solvents (e.g., toluene, xylene, DMF) using gas chromatography with flame ionization detection. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity to determine volume-based particle size distribution in dispersed dry or wet samples. |
| Test Item | Specification |
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| Appearance | Gray solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 295-299°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=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.