3-Nitrophthalic anhydride Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 641-70-3 |
| Product name | 3-Nitrophthalic anhydride |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial 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 3-Nitrophthalic anhydride
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 3-Nitrophthalic anhydride Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 3-Nitrophthalic anhydride
| Industry | Application | Process |
|---|---|---|
| Chemical Industry | Intermediate for synthesizing organic compounds | Prepared via nitration of phthalic anhydride |
| Pharmaceutical Industry | Intermediate for drug synthesis | Used in synthesizing certain antibiotics and antitumor agents |
| Dye Industry | Intermediate for dye synthesis | Employed as a raw material for azo dyes and other organic dyes |
| Polymer Materials | Production of high-performance polymers | Applied in synthesizing specialty resins and thermosetting plastics |
| Fine Chemicals | Production of functional chemicals | Used in manufacturing electronic chemicals and specialty additives |
Manufacturing Quality Control of 3-Nitrophthalic anhydride
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification using reversed-phase HPLC with UV detection at 254 nm, comparing peak area to a certified reference standard. |
| Appearance | Visual Inspection | Assessment of physical state and color against established reference samples under controlled lighting conditions. |
| Melting Point | Capillary Melting Point Determination | Measurement of temperature range over which solid transitions to liquid using calibrated capillary apparatus. |
| Loss on Drying | Gravimetric Analysis | Determination of volatile content by measuring mass loss after drying at specified temperature and time under vacuum. |
| Residue on Ignition | Sulfated Ash Test | Calcination of sample followed by weighing of non-volatile inorganic residue after sulfuric acid treatment. |
| Chloride Impurity | Ion Chromatography (IC) | Separation and quantification of chloride ions using anion-exchange column with conductivity detection. |
| Sulfate Impurity | Barium Sulfate Gravimetry | Precipitation of sulfate as BaSO4 followed by filtration, drying, and weighing of the precipitate. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of total heavy metals after wet digestion, using flame or graphite furnace AAS with lead-specific hollow cathode lamp. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration based on iodine consumption in reaction with water in anhydrous methanol/pyridine medium. |
| Related Substances | HPLC-DAD | Separation and identification of impurities using HPLC with diode array detection; relative retention times and spectral matching against reference compounds. |
| Acid Value | Acid-Base Titration | Neutralization of acidic functional groups with standardized NaOH solution using phenolphthalein indicator. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity to determine size distribution of dry powder particles in air dispersion. |
Technical Specifications of 3-Nitrophthalic anhydride
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 154–158°C |
| Total Impurities | <=2.0% (HPLC) |
| Single Impurity | <=0.5% (HPLC) |
| Water Content (KF) | <=0.5% |
| Residue on Ignition | <=0.1% |
| Identification (IR) | Consistent with reference spectrum |
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 3-Nitrophthalic anhydride
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 3-Nitrophthalic anhydride
Packaging of 3-Nitrophthalic anhydride
Industrial 3-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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