4-Nitro-o-phenylenediamine Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 99-56-9 |
| Product name | 4-Nitro-o-phenylenediamine |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial GradeSpecialty GradeReagent 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 4-Nitro-o-phenylenediamine
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Nitro-o-phenylenediamine Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Nitro-o-phenylenediamine
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Intermediate for synthesizing azo dyes and sulfur dyes | Used as a diazo component in coupling reactions to produce red, orange, and other colored dyes |
| Pharmaceutical Industry | Intermediate for drug synthesis | Applied in the synthesis of antibacterial agents, anti-inflammatory drugs, and other active pharmaceutical ingredients containing the benzimidazole structure |
| Pesticide Industry | Intermediate for agrochemicals | Employed as a precursor compound in the synthesis of fungicides or plant growth regulators |
| Analytical Chemistry | Colorimetric reagent | Used to detect aldehydes, ketones, and other organic compounds via condensation reactions that yield colored products for colorimetric analysis |
| Materials Science | Precursor for functional materials | Applied in the preparation of heterocyclic polymers with optoelectronic properties or fluorescent probe molecules |
Manufacturing Quality Control of 4-Nitro-o-phenylenediamine
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Purity Test | High-Performance Liquid Chromatography (HPLC) | Uses a reversed-phase column with methanol/water or acetonitrile/buffer salt as the mobile phase. A UV detector (e.g., 254 nm) is employed to quantitatively analyze the main component's purity and assess impurity levels. |
| Structural Confirmation | Infrared Spectroscopy (IR) | Confirms molecular structure through characteristic absorption peaks (e.g., —NH₂, —NO₂, aromatic rings), comparing with reference spectra to verify chemical structure consistency. |
| Assay | Ultraviolet-Visible Spectrophotometry (UV-Vis) | Measures absorbance at the maximum wavelength (e.g., around 360–380 nm) and calculates the content of 4-nitro-o-phenylenediamine in the sample based on a standard calibration curve. |
| Impurity Analysis | Thin-Layer Chromatography (TLC) | Uses silica gel plates and developing solvents such as ethyl acetate-petroleum ether systems. After visualization, spot numbers and Rf values are observed for qualitative screening of organic impurities. |
| Melting Point Determination | Capillary Melting Point Apparatus | Determines the temperature range from initial melting to complete melting (literature value approximately 137–140°C) to evaluate substance purity and crystal form consistency. |
| Moisture Content | Karl Fischer Titration | Employs volumetric or coulometric methods to determine trace moisture content in the sample, ensuring compliance with standards for loss on drying or moisture content (typically <0.5%). |
| Heavy Metal Residue | Atomic Absorption Spectroscopy (AAS) | After acid digestion of the sample, flame or graphite furnace atomic absorption spectrometry is used to measure residual levels of heavy metals such as lead, cadmium, mercury, and arsenic. |
| Loss on Drying | Oven Drying to Constant Weight | The sample is dried under vacuum or atmospheric pressure at a specified temperature (e.g., 105°C) until constant weight is achieved. The percentage weight loss is calculated to assess volatile matter or adsorbed water content. |
Technical Specifications of 4-Nitro-o-phenylenediamine
| Test Item | Specification |
|---|---|
| Appearance | Yellow to amber to dark red crystalline powder |
| Purity | >=98.0% (HPLC) |
| Melting Point | 165.0 - 169.0 °C |
| Total Impurities | <=2.0% |
| 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-Nitro-o-phenylenediamine
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Nitro-o-phenylenediamine
Packaging of 4-Nitro-o-phenylenediamine
Industrial 4-Nitro-o-phenylenediamine 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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