(4aR,7aS)-tert-butyl tetrahydro-2H-[1,4]dioxino[2,3-c]pyrrole-6(3H)-carboxylate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 694439-03-7 |
| Product name | (4aR,7aS)-tert-butyl tetrahydro-2H-[1,4]dioxino[2,3-c]pyrrole-6(3H)-carboxylate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeSpecialty 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 694439-03-7
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 694439-03-7 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 694439-03-7
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical R&D | Chiral synthetic intermediate for constructing nitrogen-containing heterocyclic drug molecules | Asymmetric synthesis or chiral auxiliary-mediated cyclization in organic synthesis |
| Fine Chemicals | Preparation of β-lactam antibiotics or other bioactive compounds containing bridged-ring structures | Key intermediate in multistep synthesis, participating in condensation, cyclization, or deprotection steps |
Manufacturing Quality Control of 694439-03-7
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main compound by UV absorbance relative to a certified reference standard using reversed-phase chromatography. |
| Chiral Purity | Chiral HPLC | Resolves enantiomers on a chiral stationary phase and quantifies (1R,2S) isomer content via peak area ratio. |
| Residual Solvents | GC-FID | Separates and detects volatile organic solvents (e.g., ethyl acetate, heptane) by flame ionization detection. |
| Water Content | Karl Fischer Titration | Measures trace water via coulometric or volumetric titration with iodine-based reagent stoichiometry. |
| Heavy Metals | ICP-MS | Quantifies elemental impurities (e.g., Pb, Cd, Ni) by mass spectrometric detection after acid digestion. |
| Residual Catalyst (Pd) | ICP-OES | Determines palladium residue by atomic emission spectroscopy following microwave-assisted acid digestion. |
| Related Substances | HPLC-UV | Identifies and quantifies structurally related impurities using gradient elution and UV detection. |
| Optical Rotation | [alpha]D Measurement | Measures specific rotation at 589 nm to confirm chiral integrity and batch-to-batch consistency. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range of solid-to-liquid transition as a physical identity and purity indicator. |
| Appearance | Visual Inspection | Assesses color, clarity, and physical state (e.g., white to off-white crystalline powder) under controlled lighting. |
| Loss on Drying | Gravimetric Heating | Measures weight loss after drying under specified temperature/vacuum to determine volatile content. |
| pH of Aqueous Suspension | pH Meter | Evaluates acidity/basicity by measuring hydrogen ion activity in a standardized suspension (e.g., 1% w/v in water). |
Technical Specifications of 694439-03-7
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% (GC-MS) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 112–116°C |
| Optical Rotation | +15.0 to +19.0° (c=1, in CHCl3) |
| 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 694439-03-7
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 694439-03-7
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Industrial 694439-03-7 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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