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HS Code |
860282 |
| Iupac Name | 3,5-Pyridinedicarboxylic acid, 2-((2-aminoethoxy)methyl)-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-, 3-ethyl 5-methyl ester, (+-)-, (Z)-2-butenedioate (1:1) |
| Molecular Formula | C24H28ClN3O8 |
| Molecular Weight | 521.95 g/mol |
| Appearance | White to off-white solid |
| Solubility | Slightly soluble in water, more soluble in DMSO or methanol |
| Synonyms | Felodipine Impurity D, Felodipine fumarate derivative |
| Storage Conditions | Store at 2-8°C, protected from light |
| Stability | Stable under recommended storage conditions |
| Purity | Typically ≥98% (can vary by supplier) |
| Boiling Point | Decomposes before boiling |
| Chemical Class | Dihydropyridine calcium channel blocker derivative |
| Optical Activity | Racemic mixture (+/-) |
As an accredited 3,5-Pyridinedicarboxylic acid, 2-((2-aminoethoxy)methyl)-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-, 3-ethyl 5-methyl ester, (+-)-, (Z)-2-butenedioate (1:1) factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Amber glass bottle with tamper-evident cap; clearly labeled with chemical name, hazard symbols, and 25g net weight. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL): Securely packed 3,5-Pyridinedicarboxylic acid derivative, 8–10MT net, 200kg/drum, moisture-controlled, compliant with chemical safety standards. |
| Shipping | This chemical is shipped in tightly sealed containers suitable for dry, cool, and well-ventilated storage. It is packed and labeled according to hazardous material regulations, with handling instructions to prevent exposure to moisture, heat, and light. Transportation follows applicable international chemical safety and documentation requirements to ensure safe delivery. |
| Storage | Store 3,5-Pyridinedicarboxylic acid, 2-((2-aminoethoxy)methyl)-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-, 3-ethyl 5-methyl ester, (+-)-, (Z)-2-butenedioate (1:1) in a tightly sealed container, protected from light and moisture, at 2–8°C (refrigerator). Keep away from incompatible substances such as strong oxidizers and acids. Ensure storage in a well-ventilated, dry area with appropriate chemical labeling and safety precautions. |
| Shelf Life | Shelf life: Store in a tightly closed container at 2-8°C; stable for at least 2 years under recommended conditions. |
Competitive 3,5-Pyridinedicarboxylic acid, 2-((2-aminoethoxy)methyl)-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-, 3-ethyl 5-methyl ester, (+-)-, (Z)-2-butenedioate (1:1) prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615371019725 or mail to sales7@boxa-chem.com.
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Tel: +8615371019725
Email: sales7@boxa-chem.com
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As the manufacturer of 3,5-Pyridinedicarboxylic acid, 2-((2-aminoethoxy)methyl)-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-, 3-ethyl 5-methyl ester, (+-)-, (Z)-2-butenedioate (1:1), we draw on years blending precision, chemistry, and a relentless drive for consistency. Every finished batch represents the culmination of rigorous process controls and real-world learning on the production floor. Our production reactors have run this complex compound through hundreds of hours of optimized synthesis, checked on equipment calibrated by hands that know the difference between an academic recipe and a workable manufacturing plan.
This molecule, with its long name and detailed structure, reflects the growing demand for specialty building blocks in next-generation pharmaceuticals and advanced materials. Unlike basic precursors, this compound's fused heterocycle, custom side chain, and specific esters create unique behavior in synthesis and applications. When large customers come to us, they expect not only a certificate of analysis matching their written specification, but performance that translates to success in their plant or laboratory.
Purity affects everything, especially in reactions where minor impurities can stall a run or create lengthy purification steps. In our experience, achieving a reproducible assay above 98% without sacrificing yield or stability begins long before actual purification — right at sourcing raw materials and controlling humidity, temperature, and solvent ratios during synthesis. Care in these early steps eliminates costly troubleshooting later, when rejected lots turn into wasted time and resources for our partners.
Every batch starts with a painstaking review of precursor quality. Each incoming lot receives screening beyond generic supplier paperwork, relying on in-house analytics. We’ve paid dearly in the past for batches where loose raw material specification led to hard-to-remove byproducts stubbornly following through multi-stage reactions. Every missed detection translates into longer chromatography runs, lower yield, or even out-of-spec product.
Our reactors handle the delicate amine and ether functionalities in the molecule. Nitrogen atmosphere, tight control of exotherms, and careful solvent selection maintain both structure and purity. One learns quickly how even slight deviations in temperature or mixing speed during the alkylation step influence not just finish, but the downstream crystallization. The chlorophenyl substitution, with its electron-withdrawing effect, brings both challenge and predictability when handled by an operator who recognizes the tell-tale color changes and reaction cues.
Once the core structure forms, attention turns to protecting and deprotecting critical groups. We employ proprietary work-up steps that go beyond the literature: extended washes, specific pH adjustments, and anti-solvent additions stage by stage. Each cycle, we adapt—sometimes reducing batch size for problematic cycles, at times scaling up after seeing solid reproducibility. The hands-on approach reduces both rework and gives our chemists the satisfaction that only direct feedback from the product itself can provide.
After synthesis, a major challenge involves stabilizing the product for shipment and storage. Complex esters, especially those with multiple sensitive points, can degrade through hydrolysis or oxidation. Our engineers invest in moisture barrier packaging and nitrogen blanketing. These steps lower the odds of shelf-life variability, particularly as the product ships globally and sometimes sits in customs or storage for unpredictable periods. We've learned that clear labeling, detailed storage instructions, and on-demand customer support prevent downstream problems and warranty headaches. No shipment leaves our dock without a full tracking and temperature log—simple, manual processes, but vital for feedback loops and real accountability.
Pharmaceutical clients have relied on this ester for custom active pharmaceutical ingredient (API) intermediates, labeling work, and exploratory syntheses where standard building blocks do not perform. The fact that this compound arrives ready for use, without need of repurification or extensive drying, gives research teams better process efficiency. We've seen pilot groups, under time pressure for regulatory filings, reach out post-purchase when timelines grow tighter and only high-performing raw materials keep projects moving. This is where having real chemists on the phone, not just sales reps, helps everyone — they know the difference between a theoretical complaint and a genuine technical hurdle.
On the material sciences side, customers processing this compound for specialty polymers or advanced coatings remark on its responsiveness. Subtle features, like the balance of methyl and ethyl esters or the positioning of the chlorophenyl group, set it apart from more generic analogs. These differences affect polymerization rates, charge distribution, and downstream chemical tunability. They create opportunities for innovation, but only if the starting material’s reliability can be counted on across shipments.
On paper, several chemicals may seem only rotationally or functionally modified from our compound, but experience shows these differences change everything. Even one extra methyl group or a different placement for an ether oxygen can drastically impact how the molecule participates in a reaction. Researchers and process engineers who tried to substitute similar derivatives for our tightly controlled compound often run into yield losses, inconsistent kinetics, or new byproducts not visible during early screening. Rather than run the risk of expensive troubleshooting, the value lies in using a well-characterized version with documented handling, manufacturing and analytical records.
Regulatory reviews bear this out. Specialized side groups on our compound often mean higher regulatory scrutiny, as they may require extra toxicology, solvency, or migration data. We've walked this process with clients, whether for investigational drug filings or technical materials auditing. Having full traceability — right back to original lots and batch-level documentation — prevents lost time during regulatory queries. It also allows us to provide rapid support, such as user-specific Certificates of Analysis or detailed impurity profiles, without scrambling to reconstruct production records.
We see product support not as a paperwork task, but as an extension of production culture. When unforeseen problems arise — crystallization issues, solubility challenges, unexpected chromophores — no generic spec sheet holds the answer. Real troubleshooting means talking through production logs, lab notes, and sometimes even pulling archived batches for analysis. This type of institutional memory makes our team uniquely qualified to handle outliers or special requests in a way that trading houses simply cannot match.
Often, challenges on the customer end come back to nuances in their own processing — slight moisture from a filtration step, non-ideal pH from recycled solvents, drift in reaction temperatures after scale-up. Because we run these reactions daily at scale, sharing lessons learned saves pain on both sides. Sometimes the feedback comes from a misstep we made ourselves years ago, other times from what our partners relay from the frontlines as they stretch the molecule's performance.
Chemical manufacturing never stands still. Feedstock quality shifts, regulatory demands tighten, and end uses grow more sophisticated. We’ve learned to treat constant improvement not as a burden, but as a source of edge. We've overhauled entire production steps after identifying a persistent yield limiter in a minor work-up stage. This willingness to tinker, test, document, and communicate changes earns respect from global quality teams. It builds the kind of trust that lets our buyers settle in for long-term partnerships because they know we match their commitment to performance.
On our floor, chemists and production staff share their process tweaks weekly, and we document every minor deviation to improve batch reproducibility. We’ve invested in daily cross-checks between plant and lab data, not just to catch errors but to create a living record of what actually works. That experience bleeds into every order, large or small, and the result is an offering sharpened by failure as much as by achievement.
Producing a structurally complex molecule like this one pushes our team to balance ambition with responsibility. The synthesis route involves reagents and solvents with both environmental and safety profiles that demand respect, not shortcuts. Solvent recovery and waste stream management mark critical steps — we’ve retrofitted distillation systems to minimize emissions and run operator-level hazard reviews at every campaign kickoff.
Employee safety sits at the foundation, not just to meet regulation but from lived experience. Process alarms, protective gear, and routine safety drills reduce genuine risk. No one understands the necessity of these protocols better than our operators and engineers who’ve seen firsthand the volatility of exothermic charge or the impact of misreading a pressure gauge. The direct lessons of this molecule’s specific process hazards steer both company and industry best practices year over year.
Customers selecting fine organic molecules have plenty of sources for basic precursors. The real marketplace differentiation stems from our direct role in production, willingness to customize, and ongoing support. Many of our customers began with off-the-shelf samples from generic sources, only to encounter batch variability or unexpected impurity profiles. After switching to our manufacturing process, they’ve found that predictable results lower their total project cost — fewer failed trials, less revalidation, and less time spent second-guessing the raw materials.
We keep our order channels simple — direct communication, flexible batch sizes, and the ability to run both campaign manufacturing and one-off small lots without multiple layers of reselling. That responsiveness, honed by repeated interaction with scientists and process engineers, keeps our technical support both accurate and practical.
Scaling this compound from the multi-gram to multi-kilogram level brings real lessons. Raw material purity that goes unnoticed on the small scale quickly becomes an obstacle at higher volumes. Mixing times, solvent stripping, and phase separation all shift subtly. We've invested in pilot facilities where new methods are proven out before rolling into full-scale campaigns, and the lessons from our earliest runs drive continuous improvement.
Feedback from partners working in drug discovery or advanced chemistry fields also pushes us to keep upgrading. Many want custom modifications — isotope labeling, pure enantiomers, or adapted functional groups. The expertise we've built on this molecule forms a foundation, letting us respond to these requests quickly and with low risk. By maintaining clean records and validated methods, we turn complicated changeovers into shorter development cycles rather than project roadblocks.
No production lot leaves without comprehensive analysis — NMR, HPLC, and specific purity testing down to the ppm. Knowing these analytical profiles hands-on means we recognize drift or anomalies early and can troubleshoot rather than simply relabel. Our in-process testing catches what automated systems miss, and direct feedback from synthesis teams ensures no unexplained peaks or color changes are ignored.
For clients with custom requirements or regulatory filings, our team supplies tailored supporting data. Some downstream processes call for absolute chirality confirmation or documentation on solvent residue. We can provide that level of detail from direct experience, avoiding costly delays or missed filing windows. This record-keeping isn't just for audits; it's a tool for shared learning as we grow with our partners.
As the science behind drug and materials innovation accelerates, custom intermediates shape the possibilities open to R&D groups, universities, and process chemistry teams. By maintaining a flexible manufacturing backbone and direct lines with researchers, our work with this compound regularly opens up new technical territory. Whether it's a new electrophile discovered in-house or a route shared by a partner, every new outcome broadens not only the applications, but the methods available to industry.
Clients come back with stories of unexpected solubility profiles, stabilization of tricky intermediates, and successful pilot runs spurred by the unique features in our molecule’s structure. Our ability to engage as problem-solvers, rather than simply as suppliers, underpins both loyalty and the technical edge enjoyed by our customers.
In the years spent making, troubleshooting, and refining this family of pyridinedicarboxylic acid derivatives, we’ve come to appreciate how nuanced manufacturing really is. Every bottleneck or batch deviation, every regulatory question, and every field complaint offers a lesson — provided the team is listening. Bringing a challenging molecule like 3,5-Pyridinedicarboxylic acid, 2-((2-aminoethoxy)methyl)-4-(2-chlorophenyl)-1,4-dihydro-6-methyl-, 3-ethyl 5-methyl ester, (+-)-, (Z)-2-butenedioate (1:1) to global customers with reliability has tested nearly every part of our operation. The accumulated experience now lets us offer both technical product and informed support — not by relying on templates, but by digging into the work until the product consistently meets need and expectation.
We encourage our partners to lean on our background — ask technical questions, visit our plant, or review our drilling-down on synthetic or analytical challenges. The open, hands-on approach built here keeps us ahead of changing industry horizons and gives our customers a competitive advantage grounded in practical know-how.