1631-70-5 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 1631-70-5 |
| Product name | 1631-70-5 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical 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 1631-70-5
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 1631-70-5 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 1631-70-5
| Industry | Application | Process |
|---|---|---|
| Organic Synthesis | Silyl protecting reagent for selective protection of hydroxyl groups in alcohols and phenols | Reacted with alcohols or phenols under basic conditions (e.g., NaH, n-BuLi) to form benzyldimethylsilyl ethers; deprotection achieved under acidic conditions (e.g., HCl/MeOH) or with fluoride sources (e.g., TBAF) |
| Pharmaceutical R&D | Building block for silicon-containing intermediates to enhance metabolic stability and lipophilicity of molecules | Used as a silylation reagent in structural modification of active pharmaceutical ingredients (APIs), commonly incorporated into synthetic routes for kinase inhibitors and G protein-coupled receptor (GPCR)-targeting compounds |
| Materials Science | Organosilicon functionalization precursor for heat-resistant and hydrophobic coatings | Incorporated into polymer backbones or side chains via hydrolysis-condensation reactions, or co-hydrolyzed with chlorosilanes to prepare hybrid silicone resins |
Manufacturing Quality Control of 1631-70-5
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantifies benzyl dimethylsilane peak area relative to calibration standards using flame ionization detection. |
| Water Content | Karl Fischer Titration | Measures water by coulometric or volumetric titration with iodine generated in situ via electrochemical reaction. |
| Residual Solvents | Gas Chromatography (GC) with Headspace sampling | Separates and quantifies volatile organic impurities using headspace equilibrium and GC-FID or GC-MS. |
| Acid Number | Acid-Base Titration with NaOH | Determines acidic impurities by titration with standardized sodium hydroxide solution using phenolphthalein indicator. |
| Chloride Content | Ion Chromatography (IC) | Separates and quantifies chloride ions using anion-exchange column and conductivity detection. |
| Heavy Metals (Pb, Cd, Hg, Cr) | ICP-OES | Measures trace metal concentrations after acid digestion by optical emission spectroscopy of plasma-excited atoms. |
| Non-Volatile Residue | Gravimetric Analysis (Weight Loss on Evaporation) | Determines residue mass after controlled evaporation and drying of a weighed sample at specified temperature. |
| Color (APHA) | Visual Comparison or Spectrophotometry (APHA scale) | Compares sample color to platinum-cobalt standard solutions or measures absorbance at 455 nm. |
| Density | Digital Density Meter (Oscillating U-tube) | Determines density from resonant frequency shift of a vibrating U-shaped tube filled with sample. |
| Refractive Index | Refractometry | Measures refractive index using critical angle of total internal reflection at prism-sample interface. |
| Odor | Sensory Evaluation (Qualified Personnel) | Assesses presence of abnormal or off-odor by trained personnel under controlled conditions. |
| Appearance | Visual Inspection | Evaluates clarity and presence of suspended particles or phase separation in a transparent container under standard lighting. |
Technical Specifications of 1631-70-5
| 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) | 1.470–1.475 |
| Relative Density (20°C/25°C) | 0.875–0.885 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 1631-70-5
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 1631-70-5
Packaging of 1631-70-5
Industrial 1631-70-5 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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