Methyl 2-Thiofuroate Coa Industrial Purity Specifications
- Assay Verification: Ensure minimum 98.0% purity via GC analysis for consistent flavor profiles.
- Physical Constants: Validate boiling point (63 °C at 2 mm Hg) and refractive index (1.569) upon receipt.
- Supply Chain: Partner with a certified global manufacturer for reliable bulk pricing and logistics.
In the competitive landscape of flavor and fragrance intermediates, the reliability of chemical specifications is paramount. Methyl 2-thiofuroate (CAS: 13679-61-3) is a critical thioester utilized primarily for its distinctive alliaceous odor profile, reminiscent of creamy fried onions. For procurement officers and quality control chemists, understanding the detailed Certificate of Analysis (COA) is essential to maintain product consistency in final formulations. As a premier global manufacturer, NINGBO INNO PHARMCHEM CO.,LTD. adheres to rigorous standards to ensure every batch meets international industrial purity specifications.
This technical guide outlines the critical quality parameters, physical properties, and manufacturing standards required when sourcing this high-value intermediate. By focusing on data-driven specifications rather than generic claims, buyers can mitigate supply chain risks and ensure regulatory compliance.
Critical Quality Parameters and Physical Properties
The efficacy of Methyl 2-thiofuroate in application depends heavily on its physical constants. Deviations in boiling point or density often indicate the presence of unreacted starting materials or side products from the synthesis route. A robust COA must explicitly detail these parameters alongside the assay percentage. The following table summarizes the standard reference specifications expected for industrial-grade material:
| Parameter | Standard Specification | Test Method |
|---|---|---|
| Appearance | Clear liquid, Light orange to Yellow | Visual |
| Assay (Purity) | ≥ 98.0% | GC (Gas Chromatography) |
| Boiling Point | 63 °C at 2 mm Hg | Distillation |
| Density | 1.236 g/mL at 25 °C | ASTM D4052 |
| Refractive Index | n20/D 1.569 | Refractometry |
| Odor Profile | Milky creamy fried cooked onion | Sensory Evaluation |
Maintaining industrial purity above 98% is crucial because sulfur-containing compounds are potent; even minor impurities can drastically alter the organoleptic properties of the final fragrance or flavor compound. The specific gravity of 1.236 serves as a quick identity check during incoming quality control inspections.
Interpreting the Certificate of Analysis (COA)
A comprehensive COA is more than a document; it is a guarantee of chemical integrity. When reviewing documentation from a supplier, buyers should look for traceability to specific batch numbers and clear indication of the testing methodologies used. For instance, the identification of the substance should align with IUPAC nomenclature such as 2-Furancarbothioic Acid S-Methyl Ester to avoid confusion with structural isomers.
Key sections of a valid COA include:
- Identification Tests: IR Spectrum or NMR data matching the reference standard.
- Impurity Profile: Quantification of related substances, ensuring no hazardous byproducts exceed safety thresholds.
- Residual Solvents: Compliance with ICH Q3C guidelines regarding solvent remnants from the manufacturing process.
For researchers evaluating the organoleptic profile of S-methyl furan-2-carbothioate, consistency is key. Variations in the sulfur content or esterification efficiency can lead to batch-to-batch odor deviations, which are unacceptable in high-end consumer goods.
Manufacturing Process and Synthesis Route
The production of S-Methyl 2-Thiofuroate typically involves the esterification of 2-thiofuroic acid or its derivatives with a methylating agent. The efficiency of this synthesis route directly impacts the bulk price and availability of the material. Advanced manufacturing facilities utilize vacuum distillation techniques to isolate the product at low temperatures, preventing thermal degradation of the sensitive thioester linkage.
Optimized reaction yields are essential for sustainable production. By controlling reaction kinetics and purification steps, manufacturers can minimize waste and ensure high assay results. NINGBO INNO PHARMCHEM CO.,LTD. employs state-of-the-art reactor systems to maintain these high standards, ensuring that the manufacturing process aligns with both quality and environmental safety protocols.
Procurement Standards and Bulk Supply
Securing a reliable supply chain for flavor and fragrance intermediates requires a partner capable of scaling production without compromising quality. Standard packaging often involves 25kg drums, though customization is available to suit specific logistical needs. When negotiating contracts, buyers should consider the total cost of ownership, which includes purity levels, shipping terms, and lead times.
Key considerations for bulk procurement include:
- Minimum Order Quantity: Flexibility to accommodate both pilot-scale trials and full commercial production runs.
- Logistics: Availability of sea, air, or express courier options to ensure timely delivery.
- Payment Terms: Secure structures such as L/C or T/T that protect both buyer and supplier interests.
Market dynamics suggest that bulk price stability is linked to raw material availability and energy costs associated with vacuum distillation. Partnering with an established entity ensures that price fluctuations are managed effectively, providing budget certainty for long-term projects.
Regulatory Compliance and Safety
Compliance with global regulatory standards is non-negotiable. Methyl 2-thiofuroate is often associated with FEMA number 3311, indicating its status as a flavoring substance. However, it is critical to note that industrial-grade material is intended for further synthesis or specific industrial applications and must be handled by technically qualified personnel.
Safety Data Sheets (SDS) should accompany every shipment, detailing handling precautions, storage conditions, and emergency measures. Proper storage in cool, dry areas away from oxidizing agents preserves the integrity of the chemical structure. Third-party inspections, such as SGS or BV, are recommended before loading to verify quantity and quality independently.
Conclusion
Understanding the Methyl 2-Thiofuroate Coa Industrial Purity Specifications is fundamental for any business integrating this compound into their supply chain. From verifying the refractive index to ensuring the assay meets the 98.0% threshold, attention to detail prevents costly downstream failures. By prioritizing technical data and partnering with a reputable source like NINGBO INNO PHARMCHEM CO.,LTD., manufacturers can secure high-quality intermediates that drive product success.
For detailed technical inquiries or to request a sample for evaluation, direct communication with the manufacturing team is recommended to ensure all specific application requirements are met.