trans-1,2-Cyclopentanediol Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 5057-99-8 |
| Product name | trans-1,2-Cyclopentanediol |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial Grade |
| Packaging | 25KG/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 trans-1,2-Cyclopentanediol
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk trans-1,2-Cyclopentanediol Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of trans-1,2-Cyclopentanediol
| Industry | Application | Process |
|---|---|---|
| Chemical Synthesis | Chiral ligands and catalyst intermediates | Serves as a chiral source or ligand scaffold for synthesizing metal-complex catalysts, applied in asymmetric synthesis reactions (e.g., asymmetric hydrogenation, epoxidation). |
| Pharmaceutical Industry | Drug synthesis intermediates | Used to synthesize physiologically active cyclic compounds, functioning as rigid structural modules or chiral building blocks in drug molecule design. |
| Fine Chemicals | Raw material for surfactant synthesis | Introduces hydrophobic groups via esterification or etherification to synthesize nonionic surfactants with specialized structures. |
| Chemical Manufacturing | Chemical reagents and reference standards | Used for calibrating analytical instruments or as reference materials in reactions. |
| Materials Science | Functional polymer monomers | Acts as a comonomer to incorporate cyclic structures, thereby modulating the glass transition temperature and mechanical strength of polymers. |
Manufacturing Quality Control of trans-1,2-Cyclopentanediol
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantifies trans-1,2-cyclopentanediol by separation and flame ionization detection relative to a certified reference standard. |
| Water Content | Karl Fischer Titration | Measures water via coulometric or volumetric titration using iodine generated in situ in a methanol-based reagent. |
| Acidity (as Acetic Acid) | Acid-Base Titration | Determines total acidic impurities by titration with standardized sodium hydroxide solution using phenolphthalein indicator. |
| Color | Visual Comparison or Spectrophotometry (APHA/Pt-Co scale) | Evaluates color intensity by comparing sample against platinum-cobalt standard solutions or measuring absorbance at 430 nm. |
| Residue on Ignition | Gravimetric Analysis | Measures non-volatile inorganic residue after controlled high-temperature ashing and weighing. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantifies total heavy metals by atomization in a graphite furnace and absorption measurement at characteristic wavelengths. |
| Chloride Content | Ion Chromatography (IC) or Potentiometric Titration | Separates and detects chloride ions using anion-exchange column and conductivity detection, or titrates with silver nitrate. |
| Specific Optical Rotation | Polarimetry | Measures the angle of rotation of plane-polarized light caused by chiral molecules in solution at specified concentration and path length. |
| Refractive Index | Refractometry | Determines ratio of light velocity in air vs. sample using critical angle measurement at 20 C. |
| Density | Digital Density Meter or Pycnometry | Measures mass per unit volume at 20 C using oscillating U-tube principle or calibrated glass pycnometer. |
| Volatile Impurities | Headspace Gas Chromatography (HS-GC) | Detects low-boiling organic impurities by thermal equilibration in headspace vial followed by GC-FID analysis. |
| Residual Solvents | Gas Chromatography-Mass Spectrometry (GC-MS) | Identifies and quantifies trace solvents (e.g., acetone, methanol) using retention time and mass spectral library matching. |
Technical Specifications of trans-1,2-Cyclopentanediol
| Test Item | Specification |
|---|---|
| Appearance | Colorless solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 75–79°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Optical Rotation | [α]D²⁰ = -15° to -25° (c=1, in water) |
| Identification (NMR) | Conforms to reference spectrum |
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 trans-1,2-Cyclopentanediol
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of trans-1,2-Cyclopentanediol
Packaging of trans-1,2-Cyclopentanediol
Industrial trans-1,2-Cyclopentanediol 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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