4,5-Diamino-1-(2-hydroxyethyl)pyrazole sulfate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 155601-30-2 |
| Product name | 4,5-Diamino-1-(2-hydroxyethyl)pyrazole sulfate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeSpecialty 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 4,5-Diamino-1-(2-hydroxyethyl)pyrazole sulfate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4,5-Diamino-1-(2-hydroxyethyl)pyrazole sulfate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4,5-Diamino-1-(2-hydroxyethyl)pyrazole sulfate
| Industry | Application | Process |
|---|---|---|
| Cosmetics | Oxidative dye intermediate in hair dyes | Oxidative condensation with coupling agents under alkaline conditions to generate dye molecules with specific hues |
| Fine Chemicals | Organic synthesis intermediate | Used in the synthesis of heterocyclic compounds, functionalized pyrazole derivatives, and other high-value chemicals |
Manufacturing Quality Control of 4,5-Diamino-1-(2-hydroxyethyl)pyrazole sulfate
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe sample color, form (e.g., white to off-white crystalline powder), and presence of foreign matter or lumps. |
| Identification | Infrared Spectroscopy (IR) | Confirm molecular structure by comparing the infrared absorption spectrum with a reference standard. |
| High-Performance Liquid Chromatography (HPLC) | Retention time matches that of the reference standard, assisting in confirming compound identity. | |
| Content Determination | High-Performance Liquid Chromatography (HPLC) | Use a reverse-phase chromatographic column with a UV detector (e.g., 254 nm) for quantitative analysis of the main component using external standard method or area normalization. |
| Related Substances (Impurities) | High-Performance Liquid Chromatography (HPLC) | Separate the main component from potential impurities using a gradient elution program. Impurity limits are set (e.g., single impurity ≤0.5%, total impurities ≤1.0%). |
| Loss on Drying | Oven Method (105°C Constant Weight) | Weigh the sample before and after drying at specified temperature until constant weight is achieved to calculate moisture loss as a percentage. |
| Sulfate Content | Gravimetric Method or Ion Chromatography | Determine sulfate content by precipitating as barium sulfate and weighing, or using ion chromatography to measure sulfate ions. |
| pH Value | pH Meter Measurement | Prepare a solution of defined concentration (e.g., 1%) and use a calibrated pH meter to ensure it meets process and stability requirements (e.g., pH 4.0–6.0). |
| Residual Solvents | Gas Chromatography (GC, Headspace Injection) | According to ICH Q3C guidelines, detect organic solvents possibly remaining from synthesis (e.g., methanol, ethanol, DMF, etc.). |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) or ICP-MS | Following pharmacopoeia general chapters (e.g., ChP General Chapter 0821), control the total amount of element impurities such as lead, cadmium, mercury, and arsenic to be ≤20 ppm. |
| Melting Point | Capillary Melting Point Apparatus | Determine the melting temperature range as a physical constant for identification and purity evaluation (e.g., within ±2°C of literature value). |
Technical Specifications of 4,5-Diamino-1-(2-hydroxyethyl)pyrazole sulfate
| Test Item | Specification |
|---|---|
| Appearance | Pale-orange solid |
| Purity | >=98.0% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Melting Point | 185-190 °C |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.3% |
| Identification (NMR) | Consistent with structure |
| Identification (IR) | Consistent with structure |
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 4,5-Diamino-1-(2-hydroxyethyl)pyrazole sulfate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4,5-Diamino-1-(2-hydroxyethyl)pyrazole sulfate
Safety Information of 4,5-Diamino-1-(2-hydroxyethyl)pyrazole sulfate
| Pictograms |   |
| Signal Word | Danger |
| Safety Data Sheet | |
Packaging of 4,5-Diamino-1-(2-hydroxyethyl)pyrazole sulfate
Industrial 4,5-Diamino-1-(2-hydroxyethyl)pyrazole sulfate 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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