4-Nitrophthalic anhydride Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 5466-84-2 |
| Product name | 4-Nitrophthalic anhydride |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial 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-Nitrophthalic anhydride
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Nitrophthalic anhydride Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Nitrophthalic anhydride
| Industry | Application | Process |
|---|---|---|
| Chemical Industry | Intermediate for synthesizing organic dyes and pigments | Prepared via nitration of phthalic anhydride |
| Pharmaceutical Industry | Intermediate for drug synthesis | Used in synthesizing certain antibiotics and drug molecules |
| Dye Industry | Production of high-performance dyes | Serves as a precursor for azo dyes and phthalocyanine dyes |
| Polymer Materials | Synthesis of specialty resins and polymers | Used to prepare thermosetting resins and functional polymeric materials |
| Analytical Chemistry | Reference standard or analytical reagent | Employed as a reference material in chromatographic and spectroscopic analysis |
Manufacturing Quality Control of 4-Nitrophthalic anhydride
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification using reverse-phase HPLC with UV detection at 254 nm, comparing peak area to a certified reference standard. |
| Related Substances | HPLC-UV | Separation and quantification of impurities (e.g., 4-nitrophthalic acid, unreacted phthalic anhydride) using gradient HPLC-UV. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration with iodine reagent to determine water content based on stoichiometric reaction. |
| Residue on Ignition | Gravimetric Analysis | Heating sample to 750-800 C and weighing inorganic residue after complete combustion of organic matter. |
| Heavy Metals (as Pb) | AAS (Flame or Graphite Furnace) | Atomic absorption spectroscopy measuring absorbance of characteristic wavelengths after acid digestion. |
| Chloride Impurity | Ion Chromatography | Separation and conductivity detection of chloride ions following aqueous extraction and filtration. |
| Melting Point | Capillary Melting Point Apparatus | Thermal determination of solid-to-liquid transition range using calibrated capillary tube method. |
| Appearance | Visual Inspection | Assessment of physical state, color, and presence of foreign particles under controlled white light. |
| Acid Number | Acid-Base Titration | Neutralization of acidic functional groups with standardized NaOH solution using phenolphthalein indicator. |
| Solubility in Common Solvents | Qualitative Solubility Test | Observation of dissolution behavior in specified solvents (e.g., acetone, ethyl acetate, toluene) at 25 C. |
| Residual Solvents | GC-FID | Gas chromatographic separation with flame ionization detection for volatile organic solvents (e.g., DMF, toluene). |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity to determine volume-based particle size distribution in dry dispersion mode. |
Technical Specifications of 4-Nitrophthalic anhydride
| Test Item | Specification |
|---|---|
| Appearance | Off-white crystalline solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 210–214°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=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-Nitrophthalic anhydride
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Nitrophthalic anhydride
Packaging of 4-Nitrophthalic anhydride
Industrial 4-Nitrophthalic anhydride 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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