Tr-PEG3 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 105589-77-3 |
| Product name | Tr-PEG3 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty Grade |
| Packaging | 25KG/bag |
| 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 Tr-PEG3
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Tr-PEG3 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Tr-PEG3
| Industry | Application | Process |
|---|---|---|
| Chemical Synthesis | Protecting group for temporary hydroxyl protection | Used in organic synthesis to selectively protect one hydroxyl group of diethylene glycol via reaction with trityl chloride under basic conditions, enabling controlled reactivity during multistep synthesis |
| Pharmaceutical R&D | Intermediate for complex molecule synthesis | Applied as a hydroxyl-protecting intermediate in synthetic routes for antibiotics, antiviral agents, or natural products to stabilize reactive hydroxyl groups and facilitate subsequent functional group transformations |
| Materials Science | Monomer for polymer modification | Employed as a functional monomer; after deprotection, the liberated hydroxyl group enables preparation of polymers with tailored hydrophilicity or reactivity |
Manufacturing Quality Control of Tr-PEG3
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification using reverse-phase HPLC with UV detection at 254 nm, calibrated against certified reference standard. |
| Related Substances | HPLC-UV | Separation and detection of impurities (e.g., triphenylmethanol, diethylene glycol, mono-substituted analogs) using gradient HPLC-UV. |
| Water Content | Karl Fischer Titration | Electrochemical titration with iodine-based reagent to determine trace water based on stoichiometric reaction. |
| Acid Value | Acid-Base Titration | Titration with standardized potassium hydroxide solution to quantify acidic impurities via neutralization. |
| Residue on Ignition | Gravimetric Analysis | Weighing residue remaining after controlled high-temperature ashing to assess inorganic ash content. |
| Heavy Metals | ICP-OES | Multi-element quantification of Pb, Cd, Hg, As, and others by plasma excitation and optical emission spectroscopy. |
| 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 transparent glass container under controlled lighting. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light to confirm chiral integrity and absence of racemization. |
| Refractive Index | Refractometry | Determination of light bending at air-sample interface using calibrated digital refractometer at 20 C. |
| Bulk Density | Volumetric Weighing | Mass per unit volume measured using standardized cylinder and tapping procedure per USP <616>. |
| Particle Size Distribution | Laser Diffraction | Analysis of dry powder dispersion using laser scattering to determine D10, D50, D90 values. |
Technical Specifications of Tr-PEG3
| 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% |
| Refractive Index (n20/D) | 1.545 - 1.555 |
| Relative Density (20°C/25°C) | 1.080 - 1.095 g/cm³ |
| Odor | Characteristic mild ether-like odor |
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 Tr-PEG3
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Tr-PEG3
Packaging of Tr-PEG3
Industrial Tr-PEG3 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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