China Factory Direct
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| CAS number | 28267-29-0 |
| Product name | 28267-29-0 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Reagent GradeIndustrial GradeSpecialty GradeCosmetic GradeFood 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
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| Fragrance & Flavor | Used as an intermediate or fixative in fragrance synthesis, imparting fruity, waxy, and similar notes | Synthesized via esterification; applied in compounding household and food-grade fragrances |
| Cosmetics | Functions as an emollient, skin-conditioning agent, or fragrance carrier | Incorporated into emulsions, creams, and perfumes to enhance skin feel and stabilize fragrance profiles |
| Organic Synthesis | Serves as a model compound or intermediate for long-chain fatty acid esters | Participates in hydrolysis, reduction, and transesterification reactions for producing tridecanol, tridecanoic acid, or related derivatives |
| Analytical Chemistry | Used as a reference standard or internal standard in gas chromatography (GC) or mass spectrometry (MS) | Employed as a reference material for qualitative and quantitative analysis of fatty acid esters |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantifies thirteen acid ethyl ester peak area against a calibration curve using an internal or external standard. |
| Acid Value | Acid-Base Titration (KOH in ethanol) | Measures free carboxylic acid impurities by titration with standardized potassium hydroxide solution. |
| Water Content | Karl Fischer Coulometric Titration | Electrochemically determines trace water based on stoichiometric iodine generation and reaction with water. |
| Color (APHA) | Visual Comparison or Spectrophotometric Measurement (APHA scale) | Compares sample color to platinum-cobalt standard solutions at 455 nm or via calibrated colorimeter. |
| Density at 20 °C | Oscillating U-tube Densitometry | Determines density from the resonant frequency shift of a vibrating U-shaped tube filled with sample. |
| Refractive Index at 20 °C | Abbe Refractometry | Measures refractive index via critical angle of total internal reflection at the prism-sample interface. |
| Residue on Evaporation | Gravimetric Analysis (Weight Loss on Drying) | Quantifies non-volatile residue after controlled evaporation and drying under specified temperature/vacuum conditions. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) or ICP-OES | Quantifies trace metal contaminants after acid digestion, based on atomic absorption or emission intensity at element-specific wavelengths. |
| Ester Content (by saponification value) | Back Titration after Saponification | Determines total ester content via alkaline hydrolysis followed by titration of unreacted alkali with standardized acid. |
| Gas Impurities (e.g., residual solvents) | Headspace Gas Chromatography (HS-GC) with FID or MS detection | Separates and quantifies volatile impurities using equilibrium vapor phase above the liquid sample. |
| Peroxide Value | Iodometric Titration | Measures hydroperoxides by oxidation of iodide to iodine, followed by titration with standardized sodium thiosulfate. |
| Odor and Appearance | Sensory Evaluation & Visual Inspection | Assesses conformity to specification for clarity, absence of particulates, and characteristic odor by trained personnel under controlled conditions. |
| Test Item | Specification |
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| Appearance | Colorless to almost colorless clear liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.420–1.425 |
| Relative Density (20°C/25°C) | 0.855–0.865 g/cm³ |
| Odor | Characteristic ester odor |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.