4-Hydroxybenzhydrazide Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 5351-23-5 |
| Product name | 4-Hydroxybenzhydrazide |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural 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-Hydroxybenzhydrazide
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Hydroxybenzhydrazide Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Hydroxybenzhydrazide
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Intermediates | Synthesis of isoniazid derivatives for antitubercular agents and antimicrobial active compounds | Condensation with aldehydes to prepare Schiff base compounds for structural modification and activity screening |
| Agrochemical Intermediates | Synthesis of novel fungicides and plant growth regulators | Participation in cyclization reactions to construct heterocyclic structures, e.g., reaction with o-phenylenediamine to prepare benzotriazole derivatives |
| Analytical Chemistry | Colorimetric reagent for metal ion detection (e.g., Fe³⁺, Cu²⁺) | Complexation with target metal ions in a weakly acidic buffer system to form colored complexes for spectrophotometric determination |
Manufacturing Quality Control of 4-Hydroxybenzhydrazide
| 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. |
| Related Substances | HPLC-UV | Separation and detection of impurities using gradient HPLC-UV; identification and quantification based on relative retention times and response factors. |
| Residual Solvents | GC-FID | Headspace GC with flame ionization detection to quantify common organic solvents (e.g., methanol, acetone, ethyl acetate) against calibration standards. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration using iodine-based reagent to determine water content based on stoichiometric reaction with iodine and sulfur dioxide. |
| Heavy Metals | ICP-OES | Multi-element determination of Pb, Cd, Hg, As, and Cr after acid digestion, using plasma emission spectroscopy for trace-level quantification. |
| Chloride Impurity | Ion Chromatography | Separation and conductivity detection of chloride ions in aqueous extract; quantified against chloride standard solutions. |
| Sulfated Ash | Gravimetric Analysis | Incineration at 700-800 C followed by sulfuric acid treatment and final weighing to determine inorganic residue content. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition observed visually or automatically as the temperature range over which solid transforms to liquid. |
| Appearance | Visual Inspection | Assessment of physical state, color, and clarity of sample against established visual standards under controlled lighting. |
| pH of Aqueous Solution | pH Meter | Measurement of hydrogen ion activity in a 1% w/v aqueous suspension using calibrated pH electrode. |
| Residue on Ignition | Gravimetric Analysis | Weight loss on ignition at 600 C to determine non-volatile inorganic impurities after drying and incineration. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation of plane-polarized light by chiral molecules in solution using sodium D-line light source. |
Technical Specifications of 4-Hydroxybenzhydrazide
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 178–182°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 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-Hydroxybenzhydrazide
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Hydroxybenzhydrazide
Packaging of 4-Hydroxybenzhydrazide
Industrial 4-Hydroxybenzhydrazide 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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