3-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]pentanedioic Acid Diethyl Ester Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 91424-39-4 |
| Product name | 3-[[(1,1-Dimethylethyl)dimethylsilyl]oxy]pentanedioic Acid Diethyl Ester |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Reagent GradeIndustrial GradeSpecialty Grade |
| Packaging | 25L/drum |
| 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 91424-39-4
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 91424-39-4 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 91424-39-4
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Organic synthesis intermediate for prostaglandin derivatives and other biologically active molecules | Used as a protecting group carrier in multistep synthesis; hydroxyl groups are protected as silyl ethers, followed by deprotection and functional group transformations to construct target molecules |
| Fine Chemicals | Synthetic building block for chiral ligands or complex natural products | Participates in asymmetric synthesis, cyclization, or carbon chain elongation reactions; the activated methylene group undergoes alkylation or condensation |
| Research | Model compound for methodology development (e.g., C–H activation, silyl-directed functionalization) | Employed at laboratory scale to evaluate feasibility of novel catalytic systems or protection–deprotection strategies |
Manufacturing Quality Control of 91424-39-4
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 210 nm, calibrated against certified reference standard. |
| Related Substances | HPLC-UV | Separation and quantification of impurities using gradient HPLC-UV; identification based on retention time matching and peak area thresholds. |
| Residual Solvents | GC-FID | Headspace GC with flame ionization detection to quantify common solvents (e.g., ethanol, toluene, THF) per ICH Q3C guidelines. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration using iodine-based reagent to determine trace water content in the sample. |
| Acid Value | Acid-Base Titration | Titration with standardized potassium hydroxide solution to measure free carboxylic acid groups resulting from hydrolysis. |
| Chloride Content | Ion Chromatography | Separation and quantification of chloride ions using anion-exchange column and conductivity detection. |
| Heavy Metals | ICP-OES | Multi-element detection after microwave-assisted acid digestion; quantifies Pb, Cd, Hg, As, and Cr per ICH Q3D. |
| Residue on Ignition | Gravimetric Analysis | Ignition at 700-800 C followed by weighing of inorganic residue to assess inorganic impurities. |
| Appearance | Visual Inspection | Assessment of color and clarity in solution (e.g., 10% w/v in ethyl acetate) against water-white standard. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation of plane-polarized light using sodium D-line to confirm chiral integrity and enantiomeric purity. |
| Melting Point | Capillary Melting Point Apparatus | Determination of temperature range at which solid transitions to liquid, indicating crystallinity and identity. |
| Bulk Density | Tap Density Measurement | Mass per unit volume after controlled tapping; used for handling and dosing consistency in manufacturing. |
Technical Specifications of 91424-39-4
| 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% |
| Acid Value (mg KOH/g) | <=1.0 mg KOH/g |
| Refractive Index (n20/D) | 1.435–1.445 |
| Relative Density (20°C/25°C) | 0.97–0.99 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 91424-39-4
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 91424-39-4
Packaging of 91424-39-4
Industrial 91424-39-4 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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