3-Amino-5-Fluoropyridine Bulk: Sigma 732176 Drop-In Replacement
Trace Halide Impurity Profiles: Sub-50 ppm Chloride and Bromide Limits in Bulk 3-Amino-5-fluoropyridine
When evaluating 3-Amino-5-fluoropyridine (CAS: 210169-05-4) for advanced API synthesis, the halide impurity profile is often the differentiator between a reagent that performs reliably in scale-up and one that introduces variability. Our manufacturing process for this heterocyclic building block is engineered to address the specific challenges inherent in the synthesis route derived from 3-amino-2,4,6-tribromo-5-fluoropyridine. Incomplete hydrogenation or insufficient washing steps can leave residual bromide and chloride species that are not always flagged in standard purity assays but critically impact downstream reactivity.
NINGBO INNO PHARMCHEM CO.,LTD. enforces strict control over these trace halides, maintaining chloride and bromide levels below 50 ppm. This specification is critical because residual bromide can compete with the intended coupling partners in palladium-catalyzed reactions, leading to homocoupling byproducts or reduced conversion rates. Field data indicates that batches with uncontrolled halide loads often exhibit a shift toward the green end of the color spectrum (Light orange to Yellow to Green), correlating with higher trace metal and halide content. By controlling these parameters, we ensure that 5-Fluoropyridin-3-amine integrates seamlessly into your process without introducing halide-driven variability.
Technical Specs and Purity Grades: COA Parameters for Downstream Suzuki-Miyaura Couplings
For procurement and R&D managers transitioning from laboratory-scale reagents to industrial purity supplies, technical alignment is paramount. Our 3-Amino-5-fluoropyridine is formulated to match the performance metrics of reference standards while providing the volume and consistency required for manufacturing. The following table outlines the key technical parameters, ensuring full compatibility with downstream Suzuki-Miyaura couplings and other cross-coupling protocols.
| Parameter | NINGBO INNO PHARMCHEM Specification | Sigma-Aldrich 732176 / Reference Standard |
|---|---|---|
| CAS Number | 210169-05-4 | 210169-05-4 |
| Molecular Weight | 112.11 g/mol | 112.11 g/mol |
| Melting Point | 86°C | 86°C |
| Purity (GC) | ≥98.0% (Batch-specific COA) | >97.0% (GC)(T) |
| Appearance | Light yellow to white crystal/powder | Powder to crystal |
| Halide Impurities (Cl/Br) | Sub-50 ppm (Controlled) | Not specified in standard COA |
| Residual Solvents | Compliant with ICH Q3C limits | Please refer to batch-specific COA |
Our purity grades are validated to support high-yield coupling reactions. The melting point of 86°C serves as a primary physical identifier, and our batches consistently meet this thermal benchmark. Please refer to the batch-specific COA for detailed chromatograms and residual solvent analysis for each shipment.
Preventing Palladium Catalyst Poisoning and Ensuring Consistent Coupling Yields
In Suzuki-Miyaura couplings involving 3-Amino-5-fluoropyridine, the palladium catalyst is highly sensitive to impurities that can coordinate to the metal center or alter the reaction kinetics. Trace sulfur, heavy metals, or uncontrolled halide species can act as catalyst poisons, necessitating higher catalyst loading or extended reaction times. Our production protocol includes rigorous purification steps designed to minimize these poisons, ensuring that the active palladium species remains available for the intended cross-coupling cycle.
Practical field experience shows that inconsistent impurity profiles can lead to batch-to-batch yield fluctuations, particularly when scaling from gram to kilogram quantities. By maintaining a stable impurity profile, NINGBO INNO PHARMCHEM CO.,LTD. helps prevent catalyst deactivation. This stability allows process chemists to rely on predictable reaction kinetics, reducing the need for empirical adjustments during scale-up. The result is consistent coupling yields and a more robust process window for the synthesis of complex intermediates, such as those used in the preparation of Ivosidenib or nonpeptide inhibitors of measles virus entry.
Eliminating Catalyst Reloading and Extensive Purification Steps in Process Scale-Up
Scale-up often exposes hidden inefficiencies in reagent quality. When switching from small-volume reagents to bulk supply, impurities that were negligible at the milligram scale can accumulate, leading to downstream purification challenges. A drop-in replacement strategy eliminates the need for process re-qualification by providing material with identical technical performance. Our 3-Amino-5-fluoropyridine is designed to function as a direct substitute for Sigma-Aldrich 732176, allowing you to maintain your established synthesis parameters without modification.
By sourcing from a global manufacturer with a focus on process reliability, you can eliminate the costs associated with catalyst reloading and extensive purification steps. The cost-efficiency of bulk price structures, combined with the technical assurance of consistent quality, reduces the overall cost of goods sold (COGS) for your API production. This approach streamlines the supply chain, ensuring that your manufacturing schedule is not disrupted by reagent variability. For detailed technical data sheets and batch availability, visit our 3-Amino-5-fluoropyridine bulk sourcing page.
Bulk Packaging and Technical Drop-in Replacement Metrics for Sigma-Aldrich 732176
NINGBO INNO PHARMCHEM CO.,LTD. provides 3-Amino-5-fluoropyridine as a technical drop-in replacement for Sigma-Aldrich 732176, offering identical chemical properties with the scalability required for industrial applications. While reference standards are typically supplied in small quantities (e.g., 500mg), our factory supply capabilities support pilot-scale and commercial production needs. We focus on supply chain reliability, ensuring that your procurement team has access to consistent material without the lead time and cost constraints associated with laboratory-grade reagents.
Bulk packaging is configured to protect material integrity during transit and storage. Standard options include 25kg drums and IBC containers, lined to prevent moisture ingress and contamination. These physical packaging solutions are designed to maintain the crystalline structure and purity of the product throughout the logistics chain. We do not provide regulatory certifications; our focus remains on delivering high-quality chemical intermediates with precise technical specifications. For inquiries regarding packaging configurations and lead times, please contact our technical support team.
Frequently Asked Questions
What are the trace metal limits provided in the COA for 3-Amino-5-fluoropyridine?
Our batch-specific COA includes detailed analysis of trace metals, including palladium, iron, and other heavy metals that may impact downstream catalysis. While specific limits can vary based on the synthesis batch, we maintain strict controls to ensure trace metal levels are minimized to prevent catalyst poisoning. Please request the current COA for exact numerical limits applicable to your order.
How do you ensure batch-to-batch consistency in halide impurities?
We employ a controlled synthesis route and rigorous washing protocols to remove residual halides from the precursor 3-amino-2,4,6-tribromo-5-fluoropyridine. Each batch is tested for chloride and bromide content, with a target limit of sub-50 ppm. This consistency is critical for maintaining reproducible results in Suzuki-Miyaura couplings and other halide-sensitive reactions.
What are the minimum order quantities for pilot-scale coupling reactions?
We support pilot-scale requirements with flexible minimum order quantities (MOQs) tailored to your development needs. Whether you require material for initial process validation or larger-scale trials, our supply chain can accommodate varying volumes. Contact our procurement specialists to discuss MOQs and availability for your specific project timeline.
Sourcing and Technical Support
NINGBO INNO PHARMCHEM CO.,LTD. is committed to providing reliable, high-quality 3-Amino-5-fluoropyridine for pharmaceutical and chemical manufacturing. Our technical team is available to assist with COA reviews, impurity profiling, and supply chain planning to ensure a seamless transition to bulk sourcing. Partner with a verified manufacturer. Connect with our procurement specialists to lock in your supply agreements.