4-Nitrosalicylic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 619-19-2 |
| Product name | 4-Nitrosalicylic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeIndustrial 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-Nitrosalicylic acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Nitrosalicylic acid Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Nitrosalicylic acid
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthesis of pharmaceutical intermediates | Reacted with various amines to produce corresponding amides or esters |
| Dyes | Raw material for dye production | Used in coupling reactions and other methods to synthesize dyes of specific colors |
| Pesticides | Pesticide intermediate | Converted through a series of chemical reactions into biologically active pesticide ingredients |
| Analytical Chemistry | Standard reagent for colorimetric determination of reducing sugars | Reacts with reducing sugars to form a red product under alkaline conditions; sugar concentration is determined by color intensity |
| Organic Synthesis | Key organic synthesis intermediate | Participates in diverse organic reactions—including esterification and amidation—to construct complex molecular frameworks |
Manufacturing Quality Control of 4-Nitrosalicylic acid
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reversed-phase HPLC with UV detection at 254 nm, comparing peak area against a certified reference standard. |
| Related Substances | HPLC-UV | Separation and quantification of impurities (e.g., nitrophenol, salicylic acid, dinitro derivatives) using gradient HPLC-UV with system suitability criteria. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration using iodine generated in situ to react stoichiometrically with water in the sample dissolved in methanol/pyridine solvent. |
| Residue on Ignition | Gravimetric Analysis | Heating the sample at 700-800 C to constant weight and measuring inorganic residue as sulfate ash. |
| Heavy Metals | AAS (Flame or Graphite Furnace) | Atomic absorption spectroscopy after wet digestion with nitric acid/hydrogen peroxide to quantify Pb, Cd, Hg, As, and Cr. |
| Chloride Impurity | Ion Chromatography | Separation and conductivity detection of chloride ions after aqueous extraction and filtration. |
| Sulfated Ash | Gravimetric Analysis | Ignition of sample with sulfuric acid followed by heating to 700 C and weighing residual inorganic sulfate salts. |
| Melting Point | Capillary Melting Point Apparatus | Thermal determination of solid-to-liquid phase transition using calibrated capillary apparatus per USP <741>. |
| pH of Aqueous Suspension | Potentiometric pH Measurement | Measurement of pH in a saturated aqueous suspension (1:10 w/v) using a calibrated glass electrode pH meter. |
| Organic Volatile Impurities | GC-FID | Gas chromatographic separation with flame ionization detection for residual solvents (e.g., methanol, acetone, ethyl acetate). |
| Particle Size Distribution | Laser Diffraction | Analysis of dry powder dispersion using laser scattering to determine D10, D50, D90 values per ISO 13320. |
| Bulk Density | Tap Density Tester | Measurement of mass per unit volume after standardized tapping (e.g., 100 taps per ASTM D1895). |
Technical Specifications of 4-Nitrosalicylic acid
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 195-199 °C |
| Total Impurities | <=2.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
| Identification (IR) | Conforms to 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 4-Nitrosalicylic acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Nitrosalicylic acid
Packaging of 4-Nitrosalicylic acid
Industrial 4-Nitrosalicylic acid 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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