4-BROMOMETHYLTETRAHYDROPYRAN Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 125552-89-8 |
| Product name | 4-BROMOMETHYLTETRAHYDROPYRAN |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural 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) |
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Documents We Provide for 4-BROMOMETHYLTETRAHYDROPYRAN
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-BROMOMETHYLTETRAHYDROPYRAN Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-BROMOMETHYLTETRAHYDROPYRAN
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthetic intermediate for antiviral drug production | Bromomethyl group introduced via Grignard reaction or substitution reaction |
| Agrochemicals | Synthetic intermediate for active pharmaceutical ingredient (API) synthesis | Alkylation reaction to attach target functional groups |
| Materials | Precursor for functional monomer synthesis | Substitution or coupling reactions to construct complex molecular architectures |
| Chemicals | Brominated alkylating reagent in organic synthesis | Bromomethyl group participates in nucleophilic substitution reactions |
Manufacturing Quality Control of 4-BROMOMETHYLTETRAHYDROPYRAN
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantifies main component by retention time and peak area comparison against certified reference standard. |
| Related Substances | Gas Chromatography (GC) with FID detection | Identifies and quantifies structurally similar impurities based on relative retention times and response factors. |
| Residual Solvents | Gas Chromatography (GC) with Headspace sampling | Detects and quantifies volatile organic solvents (e.g., dichloromethane, toluene) using headspace equilibrium and FID detection. |
| Water Content | Karl Fischer Titration (Coulometric) | Determines trace water via electrochemical iodine generation and stoichiometric reaction with water. |
| Acid Value | Acid-Base Titration with NaOH standard solution | Measures free acid content by titration with standardized sodium hydroxide using phenolphthalein indicator. |
| Chloride Impurity | Ion Chromatography (IC) with conductivity detection | Separates and quantifies chloride ions using anion-exchange column and suppressed conductivity detection. |
| Heavy Metals (Pb, Cd, Hg, As) | Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | Detects trace metal elements by atomization, ionization, and mass-to-charge ratio measurement. |
| Appearance | Visual Inspection | Assesses physical state, color, and clarity of sample against specified standards under controlled lighting. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid using calibrated capillary tube method. |
| Specific Optical Rotation | Polarimetry | Measures degree of rotation of plane-polarized light caused by chiral molecules in solution. |
| Residue on Ignition | Gravimetric Analysis after High-Temperature Ashing | Quantifies non-volatile inorganic residue remaining after combustion at 700-800 C. |
| Bulk Density | USP <616> Tap Density Method | Determines mass per unit volume of powder after controlled tapping in a graduated cylinder. |
Technical Specifications of 4-BROMOMETHYLTETRAHYDROPYRAN
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Refractive Index (n20/D) | 1.495–1.505 |
| Odor | Characteristic, mild |
| Color (APHA/Pt-Co) | <=20 |
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 4-BROMOMETHYLTETRAHYDROPYRAN
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-BROMOMETHYLTETRAHYDROPYRAN
Packaging of 4-BROMOMETHYLTETRAHYDROPYRAN
Industrial 4-BROMOMETHYLTETRAHYDROPYRAN 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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