4-Chromanone Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 491-37-2 |
| Product name | 4-Chromanone |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty Grade |
| Packaging | 25KG/bag500KG/bag1000KG/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 4-Chromanone
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-Chromanone Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-Chromanone
| Industry | Application | Process |
|---|---|---|
| Fragrances & Flavors | Used as a fragrance ingredient, imparting sweet licorice- and coumarin-like notes along with woody accords | Incorporated directly into household and food flavor formulations as a component of fragrance compositions, typically at 0.1–5% (w/w) |
| Pharmaceutical Intermediates | Key precursor in the synthesis of the anticoagulant warfarin and its derivatives | Condensed with benzylideneacetone under basic conditions, followed by cyclization and reduction to produce warfarin |
| Organic Synthesis | Employed to construct benzodihydropyran heterocyclic scaffolds; participates in Diels–Alder reactions and metal-catalyzed coupling reactions | Undergoes Heck coupling with aryl halides under palladium catalysis; alternatively serves as a diene in [4+2] cycloaddition reactions |
Manufacturing Quality Control of 4-Chromanone
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at ~220–280 nm, comparing peak area against a certified reference standard. |
| Related Substances | HPLC-UV or UPLC-UV | Separation and quantification of structurally related impurities (e.g., starting materials, intermediates, degradation products) using gradient elution and UV detection. |
| Residual Solvents | GC-FID | Headspace gas chromatography with flame ionization detection to quantify volatile organic solvents (e.g., methanol, acetone, toluene) per ICH Q3C guidelines. |
| Water Content | Karl Fischer Titration (Coulometric) | Electrochemical titration measuring water via iodine generation and stoichiometric reaction with water in anhydrous medium. |
| Heavy Metals | ICP-MS or ICP-OES | Multi-element trace metal quantification (e.g., Pb, Cd, As, Hg, Ni) after acid digestion, based on atomic emission or mass spectrometric detection. |
| Chloride Content | Ion Chromatography (IC) or Potentiometric Titration | Separation and quantification of chloride ions (as residual HCl or salts) using suppressed conductivity detection or silver nitrate titration. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition measurement by observing solid-to-liquid phase change under controlled heating rate (ASTM D1565). |
| Appearance & Color | Visual Inspection / Hazen (APHA) Color Scale | Subjective assessment of physical state and color intensity compared to platinum-cobalt standards. |
| Residue on Ignition | Gravimetric Analysis | Determination of non-volatile inorganic residue after high-temperature ashing (700–800 °C) and weighing. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation of plane-polarized light at 20 °C using sodium D-line (589 nm) to assess chiral purity (if applicable to enantiomeric form). |
Technical Specifications of 4-Chromanone
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 58–62°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Identification (IR) | Consistent with structure |
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-Chromanone
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-Chromanone
Packaging of 4-Chromanone
Industrial 4-Chromanone 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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