18812-51-6 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 18812-51-6 |
| Product name | 18812-51-6 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeIndustrial 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 18812-51-6
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 18812-51-6 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 18812-51-6
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Intermediates | Key phosphonylation reagent for synthesizing antiviral drugs (e.g., HIV protease inhibitors) | Phosphonylation of hydroxyl- or amino-containing substrates under inert atmosphere, followed by hydrolysis or oxidation to yield target molecules |
| Organic Synthesis | Phosphonate ester ligand or catalyst precursor for transition metal-catalyzed cross-coupling reactions | In situ coordination with metal salts (e.g., Pd, Ni) to form active catalytic species for Heck, Suzuki, and related coupling reactions |
| Pesticide R&D | Structural building block for novel organophosphorus insecticides or plant growth regulators | Introduction into specific pesticide molecular scaffolds via transesterification or alkylation to optimize biological activity and selectivity |
Manufacturing Quality Control of 18812-51-6
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detector | Quantitative determination based on peak area comparison against certified reference standard under specified chromatographic conditions. |
| Water Content | Karl Fischer Titration | Electrochemical titration using iodine generated in situ to react stoichiometrically with water in the sample. |
| Acidity (as H3PO4) | Acid-Base Titration with NaOH | Neutralization of acidic impurities using standardized sodium hydroxide solution and potentiometric or visual endpoint detection. |
| Color | Visual Comparison to APHA Color Scale | Comparison of sample color in a 100-mm cell against platinum-cobalt standard solutions under controlled lighting. |
| Density at 20 C | Digital Density Meter | Measurement of mass per unit volume using oscillating U-tube principle calibrated with air and water standards. |
| Refractive Index at 20 C | Abbe Refractometer | Determination of light bending angle at air-sample interface to calculate refractive index at specified temperature. |
| Residue on Evaporation | Gravimetric Analysis | Evaporation of a known sample mass to dryness at 105 C followed by weighing of non-volatile residue. |
| Chloride Content | Ion Chromatography (IC) | Separation and quantitative detection of chloride anions using conductivity detection after ion exchange separation. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of total heavy metals via flame or graphite furnace AAS after acid digestion and matrix matching. |
| Phosphorus Content | UV-Vis Spectrophotometry (after ammonium molybdate reaction) | Formation of phosphomolybdenum blue complex measured at ~820 nm; proportional to total phosphorus concentration. |
| Volatility Residue (Loss on Drying) | Thermogravimetric Analysis (TGA) or Oven Drying | Mass loss measured after heating sample at 105 C for 2 hours under atmospheric pressure. |
| Organic Impurities (Related Substances) | Gas Chromatography-Mass Spectrometry (GC-MS) | Separation by GC followed by identification and quantification of impurities using mass spectral library matching and response factors. |
Technical Specifications of 18812-51-6
| Test Item | Specification |
|---|---|
| Appearance | Colorless to pale yellow liquid |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.425–1.435 |
| Relative Density (20°C/25°C) | 0.985–1.005 g/cm³ |
| Odor | Characteristic ester-like odor |
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 18812-51-6
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of 18812-51-6
Industrial 18812-51-6 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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