4-HYDROXY-3-NITROBIPHENYL Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 885-82-5 |
| Product name | 4-HYDROXY-3-NITROBIPHENYL |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeReagent 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 4-HYDROXY-3-NITROBIPHENYL
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-HYDROXY-3-NITROBIPHENYL Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-HYDROXY-3-NITROBIPHENYL
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Used as a dye intermediate for synthesizing azo dyes and pigments | Applied in dye synthesis via diazotization, coupling, and related reactions |
| Pharmaceutical Industry | Serves as an intermediate in the synthesis of pharmaceuticals (e.g., anti-inflammatory and antimicrobial agents) | Employed as a precursor for functional group transformations in drug synthesis |
| Agricultural Chemicals | Used as an intermediate in the synthesis of pesticides or herbicides | Applied in the preparation of active ingredients via nitro reduction, alkylation, and related reactions |
| Research & Development | Used as a chemical reagent or analytical standard | Applied in laboratory-scale synthesis, catalytic studies, and analytical testing |
Manufacturing Quality Control of 4-HYDROXY-3-NITROBIPHENYL
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 254 nm, comparing peak area against a certified reference standard. |
| Moisture Content | Karl Fischer Titration | Volumetric or coulometric titration based on the reaction of water with iodine and sulfur dioxide in pyridine/methanol medium. |
| Residue on Ignition | Gravimetric Analysis | Heating sample to 700-800 C in a platinum crucible and weighing the non-volatile inorganic residue after cooling. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of total heavy metals after acid digestion, measured by flame or graphite furnace AAS at element-specific wavelengths. |
| Chloride Impurity | Ion Chromatography (IC) | Separation and quantification of chloride ions using anion-exchange column with suppressed conductivity detection. |
| Sulfate Impurity | Turbidimetric Method | Reaction of sulfate with barium chloride under acidic conditions to form BaSO4 precipitate; absorbance measured at 420 nm. |
| Related Substances | HPLC-DAD | Separation and identification of impurities using HPLC with diode array detection, comparing retention times and spectra to reference standards. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, using calibrated capillary apparatus per USP <741>. |
| Organic Volatile Impurities | Gas Chromatography (GC-FID) | Headspace or direct injection GC with flame ionization detection for residual solvents such as toluene, methanol, or ethyl acetate. |
| Acid Value | Acid-Base Titration | Neutralization of acidic groups with standardized NaOH solution using phenolphthalein indicator or potentiometric endpoint detection. |
| Color (APHA) | Visual Comparison or Spectrophotometer | Measurement of yellowness intensity in solution relative to APHA platinum-cobalt standards at 430 nm. |
| Particle Size Distribution | Laser Diffraction | Analysis of dry or wet dispersed sample using Mie theory to determine volume-based particle size distribution. |
Technical Specifications of 4-HYDROXY-3-NITROBIPHENYL
| Test Item | Specification |
|---|---|
| Appearance | Off-white to light yellow crystalline powder |
| Purity | >=98.5% |
| Melting Point | 148–152°C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=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 4-HYDROXY-3-NITROBIPHENYL
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of 4-HYDROXY-3-NITROBIPHENYL
Industrial 4-HYDROXY-3-NITROBIPHENYL 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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