627-41-8 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 627-41-8 |
| Product name | 627-41-8 |
| 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 627-41-8
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 627-41-8 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 627-41-8
| Industry | Application | Process |
|---|---|---|
| Organic Synthesis | Used as a protecting group reagent for alkynol compounds | Reacts with alkynols under basic conditions to form methyl propargyl ether derivatives, enabling selective protection of terminal alkynes; deprotection is achieved under acidic conditions |
| Pharmaceutical Intermediates | Used in the synthesis of alkyne-containing drug molecules (e.g., anticancer and antiviral candidates) | Serves as an alkyne source for introducing alkyne moieties, participating in cross-coupling reactions such as Sonogashira coupling to construct C–C bonds |
| Materials Science | Used as a functional monomer or modifier for polymers | Integrated into polyether backbones via free-radical polymerization or click chemistry (e.g., CuAAC), conferring specialized optical or electrical properties to the material |
Manufacturing Quality Control of 627-41-8
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantifies methyl propargyl ether concentration by retention time and peak area against a calibrated standard. |
| Water Content | Karl Fischer Titration | Measures water via stoichiometric reaction between water, iodine, sulfur dioxide, and base in methanol medium. |
| Acidity (as Acetic Acid) | Acid-Base Titration with NaOH | Determines acidic impurities by titration using phenolphthalein indicator and standardized sodium hydroxide solution. |
| Color | Visual Comparison Against APHA Scale | Evaluates sample color by comparing against platinum-cobalt standard solutions under controlled lighting. |
| Density at 20 degC | Oscillating U-tube Density Meter | Measures mass per unit volume based on resonant frequency shift of a vibrating U-shaped tube filled with sample. |
| Refractive Index at 20 degC | Digital Refractometer | Determines refractive index by measuring angle of light refraction at air-sample interface using monochromatic sodium D-line. |
| Residue on Evaporation | Gravimetric Analysis | Quantifies non-volatile residue after controlled evaporation of a known sample mass under specified temperature and vacuum. |
| Heavy Metals (as Pb) | ICP-OES | Detects trace heavy metals by atomizing and exciting sample plasma, then measuring element-specific emission wavelengths. |
| Chloride Content | Potentiometric Titration with AgNO3 | Measures chloride ions by titration with silver nitrate using silver indicator electrode and reference electrode. |
| Peroxide Value | Iodometric Titration | Quantifies peroxides by their oxidation of iodide to iodine under acidic conditions, followed by thiosulfate titration. |
| Flash Point | Tag Closed Cup Tester | Determines lowest temperature at which vapors ignite momentarily when exposed to flame under standardized closed-cup conditions. |
| Non-Volatile Matter | Gravimetric Analysis | Measures weight of residue remaining after drying a weighed sample at 105 degC to constant mass. |
Technical Specifications of 627-41-8
| Test Item | Specification |
|---|---|
| Appearance | Colorless to light yellow, clear liquid |
| Purity | >=98.0% (GC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.392–1.396 |
| Relative Density (20°C/25°C) | 0.785–0.795 g/cm³ |
| Odor | Characteristic 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 627-41-8
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 627-41-8
Packaging of 627-41-8
Industrial 627-41-8 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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