5781-53-3 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 5781-53-3 |
| Product name | 5781-53-3 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural 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 5781-53-3
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 5781-53-3 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 5781-53-3
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Used as an organic synthesis intermediate for preparing antitumor agents (e.g., etoposide derivatives) and for side-chain modification of β-lactam antibiotics | Under anhydrous conditions, undergoes esterification/acylation with alcohols or phenols, or forms amides with amines; typically conducted in dichloromethane solvent with dropwise addition at low temperature (0–5 °C) to suppress side reactions |
| Agrochemicals | A key acyl chloride reagent for synthesizing novel insecticides and fungicides, e.g., for constructing oxalamide-containing bioactive molecules | Condensed with heterocyclic amines to prepare oxalamide-based agrochemical active ingredients; requires strictly anhydrous conditions and inert gas protection |
| Materials Science | Used to synthesize functional polymer monomers, such as precursors for polyoxalamides and modifiers for liquid crystalline polymers | Subjected to interfacial or solution polycondensation with diols or diamines to yield high-molecular-weight oxalyl-based polymers |
Manufacturing Quality Control of 5781-53-3
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detector | Quantitative determination based on peak area comparison against a certified reference standard under validated chromatographic conditions. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content via iodine-sulfur dioxide reaction in anhydrous methanol-based solvent. |
| Acid Value | Acid-Base Titration with NaOH | Neutralization of acidic impurities using standardized sodium hydroxide solution and phenolphthalein indicator. |
| Residue on Ignition | Gravimetric Analysis (Weight Loss on Ignition) | Measurement of non-volatile inorganic residue after controlled high-temperature ashing at 550-600 C. |
| Chloride Impurities | Ion Chromatography (IC) | Separation and quantification of chloride ions using anion-exchange column and conductivity detection. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-OES | Multi-element detection based on characteristic atomic emission spectra following acid digestion and nebulization. |
| Volatility Residue | Gas Chromatography-Mass Spectrometry (GC-MS) | Identification and semi-quantitation of volatile organic impurities by retention time and mass spectral matching. |
| Appearance | Visual Inspection | Assessment of physical state, color, and clarity against specified criteria in a clean glass container under controlled lighting. |
| Density | Digital Density Meter | Measurement of mass per unit volume at specified temperature using oscillating U-tube principle. |
| Refractive Index | Refractometry | Determination of light bending angle at air-sample interface to assess purity and consistency. |
| Boiling Point Range | Distillation (Micro-Scale) | Observation of temperature range over which the compound distills under reduced pressure per ASTM D1078. |
| Organic Volatile Impurities (Residual Solvents) | Headspace Gas Chromatography (HS-GC) | Quantification of low-boiling solvents by equilibrium partitioning into headspace and GC-FID analysis. |
Technical Specifications of 5781-53-3
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=98.0% (GC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Refractive Index (n20/D) | 1.435–1.445 |
| Relative Density (20°C/25°C) | 1.220–1.240 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 5781-53-3
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 5781-53-3
Packaging of 5781-53-3
Industrial 5781-53-3 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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