China Factory Direct
|
|
| CAS number | 23356-96-9 |
| Product name | L-(+)-Prolinol |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Reagent 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 |
|---|---|---|
| Pharmaceuticals | Chiral drug synthesis intermediate | Amide reduction |
| Cosmetics | Ingredient in skin care products | Synthesis using solvent-based methods |
| Research | Biochemical research reagent | Enzyme-catalyzed asymmetric synthesis |
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the sample's color, physical state (e.g., white solid, liquid), clarity, and presence of impurities or foreign matter. |
| Assay | High-Performance Liquid Chromatography (HPLC) | Uses a reverse-phase column (e.g., C18) and UV detector (typically around 210 nm); quantifies active ingredient by comparison with a reference standard. |
| Purity Analysis | Gas Chromatography (GC) or HPLC | GC is suitable for volatile samples and can detect organic impurities; HPLC is used for non-volatile or thermally unstable substances to separate and quantify impurity peaks. |
| Specific Optical Rotation | Polarimetry | Measures optical rotation of the solution at a specified wavelength (e.g., sodium D-line at 589 nm) and temperature, then calculates specific rotation to verify optical purity. |
| Water Content | Karl Fischer Titration (KF Method) | Uses Karl Fischer reagent to quantitatively determine water content in the sample; suitable for trace moisture analysis. |
| Residual Solvents | Gas Chromatography (GC) | Detects organic solvents possibly remaining from manufacturing (e.g., methanol, ethanol, acetone) according to ICH guidelines. |
| Related Substances (Impurities) | HPLC or UPLC | Uses gradient elution to separate main peak from impurity peaks, evaluates individual impurity levels, and ensures total impurities remain within acceptable limits. |
| Melting Point | Melting Point Apparatus | Determines the temperature range at which the compound transitions from solid to liquid, used for identification and preliminary purity assessment. |
| pH Value (in solution) | pH Meter | Dissolve L-prolinol in water at a defined concentration and measure acidity/alkalinity using a calibrated pH meter. |
| Sulfated Ash / Residue on Ignition | Ignition Residue Method | Weighs the residue after high-temperature incineration of the sample to estimate inorganic impurity content. |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) or ICP-MS | Determines levels of heavy metal elements such as lead, mercury, cadmium, and arsenic to ensure compliance with pharmacopoeial or customer-specified limits. |
| Structural Confirmation | Nuclear Magnetic Resonance (NMR), Mass Spectrometry (MS) | ¹H-NMR and ¹³C-NMR are used to confirm molecular structure; MS (e.g., ESI-MS) determines the molecular ion peak. |
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Optical Rotation | +28.0 to +33.0 deg (c=1, in H2O) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
|
|
|
| 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.