China Factory Direct
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| CAS number | 65802-56-4 |
| Product name | 4-Amino-6-hydroxy-2-mercaptopyrimidine monohydrate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeReagent GradeIndustrial 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) |
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 |
|---|---|---|
| Pharmaceuticals | Used in the synthesis of antibiotics, antiviral agents, and other active pharmaceutical ingredients as intermediates or ligands | Prepared via condensation, substitution, and other reactions to yield pharmaceutical intermediates or ligands |
| Biochemistry | Employed as an antioxidant or metal ion chelator in cell culture | Added to cell culture media to protect cells or sequester specific metal ions |
| Materials Science | Applied in the synthesis of novel materials or catalysts as ligands or structural building blocks | Incorporated into material or catalyst frameworks via coordination chemistry or self-assembly processes |
| Analytical Chemistry | Used as a colorimetric reagent or detection agent for specific metal ions or organic compounds | Leveraged for quantitative analysis based on its metal-chelating properties or reducing capability |
| Organic Synthesis | Serves as a precursor in synthesizing complex organic molecules, including agrochemicals, dyes, and other fine chemicals | Converted into target products through multistep synthetic routes, such as cyclization and substitution reactions |
| Environmental Protection | Applied in wastewater treatment as a reducing agent or chelator for heavy metal ions | Utilized in wastewater treatment to remove or immobilize hazardous metal ions via its reducing and chelating functions |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reversed-phase HPLC with UV detection at ~280 nm, comparing peak area against a certified reference standard. |
| Water Content | Karl Fischer Titration | Electrochemical titration based on the stoichiometric reaction of iodine with water in a methanol-based reagent. |
| Residue on Ignition | Gravimetric Analysis (Weight Loss on Ignition) | Measurement of non-volatile inorganic residue after incineration at 700–800 °C. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification of trace metals after acid digestion, using plasma-induced atomic emission spectroscopy. |
| Chloride Impurity | Ion Chromatography (IC) | Separation and quantification of chloride anions using suppressed conductivity detection. |
| Related Substances | HPLC-UV (with Gradient Elution) | Identification and quantification of structurally related impurities using gradient RP-HPLC and UV detection. |
| pH (1% aqueous solution) | Potentiometric pH Measurement | Determination of hydrogen ion activity using a calibrated glass electrode in a standardized aqueous suspension/solution. |
| Sulfur Content (as thiol) | Iodometric Titration | Oxidation of free thiol group by standardized iodine solution; endpoint detected by starch indicator. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition measurement using controlled heating and visual observation of solid-to-liquid phase change. |
| Appearance | Visual Inspection | Assessment of physical state, color, and presence of foreign particles under standardized lighting and against white/black backgrounds. |
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.5% (HPLC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 245-249°C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
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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.