2-Methyl-1H-pyrazol-3(2H)-one Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 3310-35-8 |
| Product name | 2-Methyl-1H-pyrazol-3(2H)-one |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial Grade |
| Packaging | 25KG/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 2-Methyl-1H-pyrazol-3(2H)-one
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2-Methyl-1H-pyrazol-3(2H)-one Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2-Methyl-1H-pyrazol-3(2H)-one
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Industry | Pharmaceutical Intermediate | Used in the synthesis of neuroprotective agents (e.g., Edaravone) and antipyretic-analgesic drugs; participates in heterocyclic ring construction and functionalization of drug molecules |
| Agrochemical Industry | Agrochemical Intermediate | Used in the synthesis of pyrazole-derived insecticides and fungicides; serves as a heterocyclic scaffold incorporated into bioactive molecular structures |
| Dye Industry | Dye Intermediate | Participates in coupling reactions for the synthesis of acid dyes, disperse dyes, and mordant dyes (e.g., acid mordant dyes) |
| Imaging and Photosensitive Materials | Color Developer Intermediate | Used in the synthesis of pyrazolone-based color developers for color photographic development and thermosensitive/pressure-sensitive recording materials |
| Chemical Reagents | Analytical Reagent | Serves as a chromogenic agent or complexing agent in analytical chemistry for colorimetric determination and detection of metal ions |
Manufacturing Quality Control of 2-Methyl-1H-pyrazol-3(2H)-one
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 210-230 nm, comparing peak area against a certified reference standard. |
| Water Content | Karl Fischer Titration | Electrochemical titration based on the reaction of iodine with water in a methanol-based reagent, measuring endpoint potentiometrically. |
| Residue on Ignition | Gravimetric Analysis | Heating sample to 700-800 C in a platinum crucible, then weighing inorganic residue after cooling in a desiccator. |
| Heavy Metals (as Pb) | Colorimetric Limit Test (Thiourea/Sulfide) | Reaction with sulfide or thiourea under controlled pH to form colored metal complexes, compared visually to lead standard solutions. |
| Chloride Impurity | Ion Chromatography (IC) | Separation of anions on a high-capacity anion-exchange column with suppressed conductivity detection. |
| Sulfate Impurity | Barium Sulfate Turbidimetry | Precipitation of sulfate as BaSO4 in acidic medium; turbidity measured spectrophotometrically at 420 nm. |
| Related Substances | HPLC-DAD | Separation and identification of impurities using gradient HPLC with diode-array detection and spectral library matching. |
| Melting Point | Capillary Melting Point Apparatus | Measurement of temperature range at which solid transitions to liquid, using calibrated capillary apparatus per USP <741>. |
| Appearance | Visual Inspection | Assessment of physical state, color, and clarity against water-white standard in a glass vial under controlled lighting. |
| Acid Value | Acid-Base Titration (NaOH) | Neutralization of acidic impurities with standardized sodium hydroxide solution using phenolphthalein indicator. |
| Loss on Drying | Thermogravimetric Analysis (TGA) | Weight loss measured upon heating sample at 105 C for 2 hours under forced-air oven conditions. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light passing through a solution, corrected for concentration and path length. |
Technical Specifications of 2-Methyl-1H-pyrazol-3(2H)-one
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Melting Point | 102.0 - 106.0 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| 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 2-Methyl-1H-pyrazol-3(2H)-one
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2-Methyl-1H-pyrazol-3(2H)-one
Packaging of 2-Methyl-1H-pyrazol-3(2H)-one
Industrial 2-Methyl-1H-pyrazol-3(2H)-one 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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