1,5-Pentanediol Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 111-29-5 |
| Product name | 1,5-Pentanediol |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeIndustrial GradeMaterial 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) |
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Documents We Provide for 1,5-Pentanediol
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 1,5-Pentanediol Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 1,5-Pentanediol
| Industry | Application | Process |
|---|---|---|
| Polyurethane | Monomer for synthesizing polyester polyols, used in producing elastomers, coatings, and adhesives | Condensation polymerization with dicarboxylic acids (e.g., adipic acid) to yield hydroxyl-terminated polyester prepolymers |
| Cosmetics | Humectant and solvent in emulsions, creams, and sprays | Direct incorporation into formulations, leveraging its low irritation potential and favorable skin permeability |
| Pesticides | Intermediate for synthesizing insecticides and fungicides | Participation in cyclization or amidation reactions to prepare nitrogen-containing heterocyclic active ingredients |
| Pharmaceuticals | Synthetic intermediate for antifungal and antiviral agents | Functioning as a C5 chain-extension unit; target molecular scaffolds are constructed via oxidation, substitution, and related reactions |
| Coatings | Film-forming aid and crosslinker component to enhance film flexibility and substrate adhesion | Used in copolymerization with acrylic resins or as an epoxy curing accelerator |
Manufacturing Quality Control of 1,5-Pentanediol
| Test Item | Common Test Methods | Method Overview |
|---|---|---|
| Purity | Gas Chromatography (GC) | Capillary column separation is used with an FID detector for quantification. Purity is calculated by peak area normalization or external standard method. Suitable for volatile organic compounds, with high sensitivity and good repeatability. |
| Moisture Content | Karl Fischer Titration | Based on electrochemical titration principle, specifically used for determining trace moisture in samples. The results are accurate and reliable, and it is a standard method in pharmacopoeia and chemical industries. |
| Acid Value/Acidity | Acid-Base Titration | Using phenolphthalein as an indicator, free acids are titrated with a standard sodium hydroxide solution. The acid value (mg KOH/g) is calculated to assess the level of acidic impurities. |
| Color | Visual Color Comparison / Spectrophotometry | Comparing with standard platinum-cobalt color solutions or measuring absorbance at a specific wavelength (e.g., 420 nm) to evaluate whether the product's color meets specifications. |
| Boiling Point/Distillation Range | Atmospheric Distillation | Based on ASTM D1078 or similar standards, the initial boiling point, final boiling point, and main distillation range are determined to assess volatility and compositional consistency. |
| Density | Density Meter / Vibrating U-tube Densitometer | Liquid density is measured at a specified temperature (e.g., 20°C), used for identification and quality consistency control. |
| Refractive Index | Abbe Refractometer | The refractive index (nD²⁰) at 20°C is measured as a physical constant to assist in purity and batch consistency verification. |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) or ICP-MS | After digestion treatment, trace elements such as lead, arsenic, mercury, and cadmium are analyzed to ensure compliance with pharmaceutical or industrial safety standards. |
| Residual Solvents | Head-Space Gas Chromatography (HS-GC) | Volatile organic solvent residues (e.g., methanol, ethanol, acetone) are analyzed by headspace sampling, in compliance with ICH Q3C guidelines. |
| Appearance | Visual Inspection | Observe whether the sample is a clear, transparent liquid without suspended particles, precipitates, or foreign matter, to make a preliminary judgment on physical conformity. |
Technical Specifications of 1,5-Pentanediol
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=98.0% (GC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Acid Value (mg KOH/g) | <=0.5 |
| Refractive Index (n20/D) | 1.453–1.457 |
| Relative Density (20°C/4°C) | 1.015–1.025 g/cm³ |
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 1,5-Pentanediol
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 1,5-Pentanediol
Packaging of 1,5-Pentanediol
Industrial 1,5-Pentanediol 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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