China Factory Direct
|
|
| CAS number | 77544-60-6 |
| Product name | Tetraethylene glycol p-toluenesulfonate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial 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) |
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 |
|---|---|---|
| Chemical Synthesis | Organic synthesis intermediate for preparing polymers and functional compounds | Used as an alkylating agent in esterification or etherification reactions |
| Pharmaceutical R&D | Synthesis of pharmaceutical intermediates for constructing complex molecular frameworks | Applied in nucleophilic substitution reactions under mild conditions to enhance product selectivity |
| Materials Science | Precursor for synthesizing liquid crystal or photosensitive materials | Involved in photoinitiated polymerization or crosslinking reactions |
| Fine Chemicals | Used as a catalyst support or additive to improve reaction efficiency | Applied as a stabilizer or reaction promoter in specific solvents |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 220 nm, calibrated against certified reference standard. |
| Related Substances | HPLC-UV | Separation and quantification of impurities (e.g., di-tosylate, mono-tosylate, tetraethylene glycol) using gradient HPLC-UV. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration based on the stoichiometric reaction of iodine with water in pyridine/methanol medium. |
| Acid Value | Acid-Base Titration | Neutralization of acidic impurities (e.g., residual p-toluenesulfonic acid) with standardized KOH solution using phenolphthalein indicator. |
| Residue on Ignition | Gravimetric Analysis | Heating sample to 700-800 C in a platinum crucible and weighing inorganic residue after cooling in desiccator. |
| Heavy Metals | ICP-OES | Multi-element quantification of Pb, Cd, Hg, As, Cr, and Ni after microwave-assisted acid digestion and plasma emission measurement. |
| Chloride Content | Ion Chromatography | Separation and conductivity detection of chloride ions after aqueous extraction and filtration. |
| Appearance | Visual Inspection | Assessment of color and clarity against water-white standard in a 100-mm cell under controlled lighting. |
| Melting Point | Capillary Melting Point Apparatus | Determination of solid-to-liquid transition temperature using calibrated digital melting point instrument with slow ramp rate. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation of plane-polarized light at 589 nm using sodium D-line, corrected for concentration and path length. |
| Residual Solvents | GC-FID | Headspace GC analysis with flame ionization detection for methanol, ethanol, THF, and toluene using internal standard calibration. |
| Sulfonate Content | Ion Exchange Titration | Quantitative displacement of tosylate anion by chloride on resin, followed by argentometric titration of released chloride. |
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Acid Value (mg KOH/g) | <=1.0 |
| Refractive Index (n20/D) | 1.485–1.495 |
| Relative Density (20°C/25°C) | 1.12–1.14 g/cm³ |
|
|
|
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
| Pictograms | ![]() ![]() |
| Signal Word | Danger |
| Safety Data Sheet | |
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.