China Factory Direct
|
|
| CAS number | 89031-84-5 |
| Product name | 89031-84-5 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical R&D | Used as a hydroxyl protecting reagent for selective protection of alcoholic hydroxyl groups in nucleosides, carbohydrates, and peptides | Silylation reaction with substrate alcohols in anhydrous tetrahydrofuran or dichloromethane, catalyzed by imidazole or DBU, to generate TBDMS-protected intermediates |
| Organic Synthesis | Used as a versatile synthon for constructing bromopropoxy-containing molecular building blocks | Functionalized side chains are introduced via nucleophilic substitution (e.g., with Grignard or organolithium reagents) or coupling reactions (e.g., Heck, Suzuki) |
| Materials Science | Used as a surface modifier to functionalize surface hydroxyl groups on silica nanoparticles or glass substrates | Reflux reaction with hydroxyl-rich inorganic materials in toluene or chloroform, forming a stable Si–O–CH₂CH₂CH₂Br bonded layer |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | GC-FID | Quantification by comparison of peak area against a certified reference standard using flame ionization detection. |
| Related Substances | GC-MS | Identification and quantification of impurities based on retention time and mass spectral matching. |
| Residual Solvents | GC-FID with Headspace Sampling | Detection of volatile organic solvents by equilibrium headspace gas chromatography. |
| Water Content | Karl Fischer Titration | Electrochemical titration measuring water via iodine-sulfur dioxide reaction in pyridine-methanol medium. |
| Acid Value | Acid-Base Titration | Neutralization of acidic impurities with standardized sodium hydroxide solution using phenolphthalein indicator. |
| Chloride Content | Ion Chromatography (IC) | Separation and quantification of chloride ions using anion-exchange column and conductivity detection. |
| Heavy Metals | ICP-OES | Multi-element detection of metals (e.g., Pb, Cd, Hg, As) after acid digestion by optical emission spectroscopy. |
| Residue on Ignition | Gravimetric Analysis | Measurement of non-volatile inorganic residue after high-temperature ashing at 600-700 C. |
| Specific Optical Rotation | Polarimetry | Determination of chiral purity by measuring rotation of plane-polarized light at specified wavelength and temperature. |
| Boiling Point | Capillary Boiling Point Apparatus | Determination of temperature at which vapor pressure equals atmospheric pressure using calibrated capillary method. |
| Density | Digital Density Meter | Measurement of mass per unit volume at 20 C using oscillating U-tube principle. |
| Refractive Index | Refractometry | Measurement of light bending angle at air-sample interface using Abbe refractometer at 20 C. |
| Test Item | Specification |
|---|---|
| Appearance | Colorless to light yellow clear liquid |
| Purity | >=98.5% (GC) |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Refractive Index (n20/D) | 1.475–1.485 |
| Relative Density (20°C/25°C) | 0.98–1.02 g/cm³ |
|
|
|
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.