2-HYDROXYTETRAHYDROPYRAN Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 694-54-2 |
| Product name | 2-HYDROXYTETRAHYDROPYRAN |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeIndustrial GradeSpecialty GradeCosmetic GradeFood Grade |
| Packaging | 25L/drum |
| 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 2-HYDROXYTETRAHYDROPYRAN
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2-HYDROXYTETRAHYDROPYRAN Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2-HYDROXYTETRAHYDROPYRAN
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Used as a chiral protecting group (THP protecting group) for temporary protection of functional groups such as alcohols, phenols, and carboxylic acids | Reacted with substrates under acidic conditions (e.g., p-TsOH, PPTS) to form THP ethers/esters, followed by mild acidic hydrolysis for deprotection |
| Organic Synthesis | Used as a hydroxyl-selective protecting reagent and chiral auxiliary | Reacted with alcohols under anhydrous conditions in the presence of a catalytic amount of acid; also employed for chiral induction in asymmetric synthesis |
| Pesticides | Used as an intermediate in constructing insecticidal and fungicidal molecules | Incorporated into active molecular frameworks via ring-opening, substitution, or coupling reactions |
| Fine Fragrances | Used to synthesize cyclic acetal fragrances exhibiting floral or fruity notes | Condensed with aldehydes/ketones under acid catalysis to form stable acetals, enhancing fragrance stability and volatility |
Manufacturing Quality Control of 2-HYDROXYTETRAHYDROPYRAN
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantifies main component by separation on a capillary column and flame ionization detection relative to an internal or external standard. |
| Water Content | Karl Fischer Titration (Coulometric or Volumetric) | Determines water via stoichiometric reaction between water, iodine, sulfur dioxide, and base in anhydrous methanol medium. |
| Acidity (as Acetic Acid) | Acid-Base Titration with NaOH standard solution | Measures acidic impurities by neutralization with standardized sodium hydroxide using phenolphthalein or potentiometric endpoint detection. |
| Residue on Ignition | Gravimetric Analysis (Weight Loss on Ignition) | Determines non-volatile inorganic residue after controlled high-temperature ashing and weighing. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) or ICP-OES | Quantifies trace metal contaminants by atomic absorption or emission following acid digestion and matrix-matched calibration. |
| Color (APHA) | Visual Comparison or Spectrophotometric Measurement at 430 nm | Evaluates yellowness intensity by comparing sample absorbance at 430 nm to APHA color scale standards. |
| Refractive Index | Refractometry at 20 °C | Measures bending of light through liquid sample at specified temperature to assess purity and concentration. |
| Specific Gravity | Digital Density Meter or Pycnometer | Determines mass-to-volume ratio at 20 °C relative to water, used for identity and purity verification. |
| Residual Solvents (e.g., THF, MeOH) | Headspace Gas Chromatography (HS-GC) with FID or MS detection | Separates and quantifies volatile organic impurities after thermal equilibration in sealed headspace vials. |
| Optical Rotation | [α]D at 20 °C | Measures degree of plane-polarized light rotation using a digital polarimeter to confirm chiral integrity and enantiomeric purity. |
Technical Specifications of 2-HYDROXYTETRAHYDROPYRAN
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=98.5% (GC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.3% |
| Refractive Index (n20/D) | 1.446–1.450 |
| Relative Density (20°C/25°C) | 0.945–0.955 g/cm³ |
| Odor | Characteristic odor |
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 2-HYDROXYTETRAHYDROPYRAN
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 2-HYDROXYTETRAHYDROPYRAN
Packaging of 2-HYDROXYTETRAHYDROPYRAN
Industrial 2-HYDROXYTETRAHYDROPYRAN 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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