1499-21-4 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 1499-21-4 |
| Product name | 1499-21-4 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial GradeSpecialty Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| 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 1499-21-4
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 1499-21-4 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 1499-21-4
| Industry | Application | Process |
|---|---|---|
| Organic Synthesis | Used as a precursor to phosphine ligands in transition metal-catalyzed coupling reactions | Reacted with Grignard or organolithium reagents to generate diphenylphosphine oxide or phosphine ligands |
| Pesticide Manufacturing | Used in the synthesis of phosphorus-containing pesticide intermediates | Serves as a key intermediate in multistep syntheses to produce biologically active organophosphorus compounds |
| Pharmaceutical R&D | Serves as an intermediate in the synthesis of anticancer and antiviral drugs | Used to introduce phosphonyl groups via reduction or coupling reactions to construct drug molecular frameworks |
| Materials Science | Used to prepare flame retardants or polymer additives | Reacted with other organic compounds to produce flame-retardant derivatives, which are incorporated into polymeric materials |
Manufacturing Quality Control of 1499-21-4
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Purity/Content Determination | Gas Chromatography (GC) | Using a capillary column with FID detector, the retention time and peak area are compared with standard substances for quantitative analysis of the main component content. |
| High-Performance Liquid Chromatography (HPLC) | Using a reversed-phase C18 column and UV detector (e.g., 210–254 nm), suitable for the purity analysis of thermally unstable or non-volatile samples. | |
| Moisture Content | Karl Fischer Titration | Utilizes iodine-sulfur dioxide in a pyridine/methanol system to react with water. The moisture content is precisely determined by potentiometric or amperometric endpoint methods. |
| Chloride Content | Potentiometric Titration / Oxygen Bottle Combustion-Ion Chromatography | Potentiometric Titration: Titrate chloride ions with silver nitrate solution; after oxygen bottle combustion, absorb and then determine total chloride content using ion chromatography. |
| Free Acid (HCl) | Acid-Base Titration | Titrate hydrochloric acid released after sample hydrolysis with standard sodium hydroxide solution, using phenolphthalein or potentiometric method to indicate the endpoint. |
| Appearance and Color | Visual Color Comparison | Observe the color and clarity of the sample under specified conditions and compare it with standard color solutions to determine whether it meets requirements (usually clear liquid from colorless to pale yellow). |
| Boiling Point/Distillation Range | Distillation Method | Determine the boiling range using a standard distillation apparatus to verify product volatility and impurity levels. |
| Density | Density Meter Method / Vibrating Tube Densimeter | Measure the density of the sample at a specified temperature (e.g., 20°C) as an auxiliary identification and quality control parameter. |
| Refractive Index | Abe Refractometer Method | Determine the refractive index at a specific temperature for rapid identification and preliminary purity assessment. |
| Residual Solvents | Headspace Gas Chromatography (HS-GC) | Use headspace sampling combined with GC-FID to detect residual organic solvents (such as dichloromethane, toluene, etc.). |
Technical Specifications of 1499-21-4
| Test Item | Specification |
|---|---|
| Appearance | Colorless to light orange clear liquid |
| Purity | >=98.5% (GC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.3% |
| Identification (NMR) | Consistent with structure |
| Refractive Index (n20/D) | 1.595–1.605 |
| Relative Density (20°C/4°C) | 1.240–1.260 g/cm³ |
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 1499-21-4
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 1499-21-4
Packaging of 1499-21-4
Industrial 1499-21-4 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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