China Factory Direct
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| CAS number | 112029-98-8 |
| Product name | 4-Hydroxymethyl-1-methylpyrazole |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial Grade |
| Packaging | 25L/drum |
| 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Agrochemicals | Key intermediate | Used in the synthesis of the insecticide fipronil and its derivatives, enabling introduction of the pyrazole ring structure via chemical reaction |
| Agrochemicals | Intermediate | Used in the synthesis of Regent®-series agrochemical products |
| Fine chemicals | Synthetic building block | Serves as a precursor for pyrazole derivatives, participating in condensation or substitution reactions |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 210-220 nm, based on peak area comparison against a certified reference standard. |
| Related Substances | HPLC-UV | Separation and quantification of impurities using gradient HPLC-UV; individual impurities reported relative to main peak using external standard or area normalization. |
| Water Content | Karl Fischer Titration | Electrochemical titration with iodine-based reagent; water reacts stoichiometrically with iodine and sulfur dioxide in methanol/pyridine medium. |
| Residue on Ignition | Gravimetric Analysis | Sample ignited at 700-800 C; residual inorganic ash is weighed after cooling in desiccator. |
| Heavy Metals | ICP-OES | Multi-element detection after acid digestion; metals quantified by emission intensity at element-specific wavelengths. |
| Chloride Impurity | Ion Chromatography | Separation of anions on ion-exchange column with suppressed conductivity detection; chloride quantified using external calibration. |
| Sulfate Impurity | Ion Chromatography | Same as chloride but optimized for sulfate elution and detection via conductivity. |
| Appearance (Solution Clarity) | Visual Inspection | Comparison of sample solution (in specified solvent, e.g., water or methanol) against clear, colorless standard under controlled lighting. |
| Color | APHA Color Scale | Visual or spectrophotometric comparison to platinum-cobalt standards; measured as APHA units at 455 nm. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition observed as solid-to-liquid phase change; determined by controlled heating rate and optical detection. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light passing through solution; indicates chiral purity and identity. |
| pH (1% aqueous solution) | pH Meter | Potentiometric measurement using calibrated glass electrode in a 1% w/v aqueous solution at 25 C. |
| Test Item | Specification |
|---|---|
| Appearance | Yellow liquid |
| Purity | >=98.5% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Refractive Index (n20/D) | 1.520–1.540 |
| Odor | Characteristic odor |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
| Pictograms | ![]() |
| Signal Word | Warning |
| Safety Data Sheet | |
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.