15-Crown-5 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 33100-27-5 |
| Product name | 15-Crown-5 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial 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) |
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Documents We Provide for 15-Crown-5
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 15-Crown-5 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 15-Crown-5
| Industry | Application | Process |
|---|---|---|
| Analytical Chemistry | Active component in ion-selective electrodes for detection of alkali metal ions (e.g., K⁺, Na⁺) | Combined with ion carriers in electrode membranes to enhance selective response toward specific cations |
| Organic Synthesis | Phase-transfer catalyst for nucleophilic substitution reactions | Forms soluble complexes with metal salts (e.g., KCN, KF) in aprotic solvents (e.g., CH₂Cl₂, THF), improving reaction rate and yield |
| Medicinal Chemistry | Template molecule for molecular recognition and drug delivery systems | Used to construct crown ether–drug conjugates, modulating drug release behavior via host–guest interactions |
| Materials Science | Functional monomer for preparing ion-imprinted polymers | Complexed with target ions (e.g., Rb⁺) prior to polymerization; subsequent ion leaching yields highly selective recognition sites |
| Nuclear Fuel Processing | Extractant component for uranyl ions (UO₂²⁺) | Used synergistically with phosphate esters in liquid–liquid extraction systems to increase the distribution ratio and selectivity for uranyl ions |
Manufacturing Quality Control of 15-Crown-5
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the sample's color, state, and transparency. Qualified products are typically colorless to pale yellow transparent liquid or crystals. |
| Purity | Gas Chromatography (GC) | Separate components in the sample using gas chromatography and calculate the relative content of 15-crown-5 based on peak areas; suitable for samples with good volatility. |
| Purity | High-Performance Liquid Chromatography (HPLC) | Suitable for thermally unstable or non-volatile samples; separate using a reversed-phase column and quantify purity via UV or refractive index detection. |
| Structure Confirmation | Nuclear Magnetic Resonance Spectroscopy (NMR) | Use ¹H NMR and ¹³C NMR to confirm molecular structure by comparing characteristic peak chemical shifts with standard spectra. |
| Functional Group Identification | Fourier Transform Infrared Spectroscopy (FT-IR) | Analyze the infrared absorption spectrum to confirm the presence of characteristic functional groups such as ether bonds (C-O-C). |
| Moisture Content | Karl Fischer Titration | Accurately determine trace moisture in the sample to prevent adverse effects on the complexation performance and storage stability of the crown ether. |
| Residual Solvents | Gas Chromatography (GC) | Detect organic solvents possibly remaining from synthesis (e.g., methanol, ethanol, dichloromethane) to ensure compliance with pharmacopeial requirements. |
| Melting/Boiling Point | Melting Point Apparatus or Differential Scanning Calorimetry (DSC) | Measure melting point or phase transition temperature to assist in assessing purity and crystalline form consistency. |
| Heavy Metal Content | Atomic Absorption Spectroscopy (AAS) or Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | Detect toxic heavy metal impurities such as lead, mercury, cadmium, and arsenic to ensure compliance with safety standards. |
| Environmental Stability | Accelerated Aging Test + GC/HPLC | Expose the sample to elevated temperature, humidity, or light over time, then analyze purity changes to evaluate stability. |
| Complexation Capacity (Functional Test) | UV-Vis Spectroscopy or Conductivity Measurement | After interaction with target metal ions (e.g., Na⁺, K⁺), observe shifts in absorption peaks or changes in solution conductivity to verify ion recognition capability of the crown ether. |
Technical Specifications of 15-Crown-5
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Melting Point | 38–42°C |
| Identification (NMR) | Consistent with structure |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| Odor | Characteristic, mild |
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 15-Crown-5
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 15-Crown-5
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Industrial 15-Crown-5 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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