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HS Code |
729302 |
| Iupac Name | (2R)-2,5,7,8-tetramethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-3,4-dihydro-2H-chromen-6-yl pyridine-3-carboxylate |
| Molecular Formula | C36H51NO4 |
| Appearance | Yellow to orange crystalline powder |
| Melting Point | Approx. 80-85°C |
| Solubility In Water | Insoluble |
| Solubility In Organic Solvents | Soluble in ethanol, chloroform, and ether |
| Boiling Point | Decomposes before boiling |
| Cas Number | 52449-44-2 |
| Logp | High (estimated >8) |
| Chemical Class | Chromene ester (vitamin E derivative) |
| Stereochemistry | Contains (2R), (4R), (8R) chiral centers |
| Uv Vis Absorption | λmax ~292 nm |
| Storage Conditions | Store in cool, dry place away from light |
| Uses | Antioxidant, nutritional supplement (vitamin E derivatives) |
As an accredited (2R)-2,5,7,8-tetramethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-3,4-dihydro-2H-chromen-6-yl pyridine-3-carboxylate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Amber glass bottle containing 10 grams; labeled with chemical name, 98% purity, hazard pictograms, batch number, and manufacturer details. |
| Container Loading (20′ FCL) | 20′ FCL holds 10–12 MT of (2R)-2,5,7,8-tetramethyl…pyridine-3-carboxylate, packed in sealed HDPE drums or cartons. |
| Shipping | This chemical is shipped in tightly sealed, inert containers under controlled temperature conditions to prevent degradation. Proper labeling, including hazard classifications, accompanies the package. Shipping complies with relevant regulations for organic compounds. Protective packaging prevents leaks or contamination, ensuring the chemical's integrity during transit and upon arrival. |
| Storage | Store (2R)-2,5,7,8-tetramethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-3,4-dihydro-2H-chromen-6-yl pyridine-3-carboxylate in a tightly closed container, protected from light and moisture, at 2–8 °C (refrigerator). Keep away from heat, ignition sources, and incompatible materials such as strong oxidizers or acids. Ensure storage in a well-ventilated, cool, dry place, and follow all local laboratory safety regulations for chemical storage. |
| Shelf Life | Shelf life: Store tightly sealed at 2–8°C, protected from light. Stable for at least 2 years under recommended conditions. |
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Purity: (2R)-2,5,7,8-tetramethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-3,4-dihydro-2H-chromen-6-yl pyridine-3-carboxylate with 98% purity is used in pharmaceutical formulations, where it ensures consistent bioactivity and reduces impurity-related side effects. Melting Point: (2R)-2,5,7,8-tetramethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-3,4-dihydro-2H-chromen-6-yl pyridine-3-carboxylate with a melting point of 132°C is used in solid dosage manufacturing, where it supports robust tablet formation and stability. Particle Size: (2R)-2,5,7,8-tetramethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-3,4-dihydro-2H-chromen-6-yl pyridine-3-carboxylate at 5 µm particle size is used in topical creams, where it promotes uniform dispersion and enhanced dermal absorption. Molecular Weight: (2R)-2,5,7,8-tetramethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-3,4-dihydro-2H-chromen-6-yl pyridine-3-carboxylate with a molecular weight of 567.89 g/mol is used in biochemical assays, where it provides precise stoichiometric calculations for experimental reproducibility. Stability Temperature: (2R)-2,5,7,8-tetramethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-3,4-dihydro-2H-chromen-6-yl pyridine-3-carboxylate stable up to 85°C is used in heat-sterilized formulations, where it maintains efficacy without degradation. |
Competitive (2R)-2,5,7,8-tetramethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-3,4-dihydro-2H-chromen-6-yl pyridine-3-carboxylate prices that fit your budget—flexible terms and customized quotes for every order.
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Day in and day out, production teams at chemical plants encounter molecules that stretch the limits of process optimization and product consistency. Among the compounds we handle, (2R)-2,5,7,8-tetramethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-3,4-dihydro-2H-chromen-6-yl pyridine-3-carboxylate stands out, not for its daunting name, but for its performance in the field. Not every complex molecule earns a reputation; some fall short because routine chemistry simply cannot deliver the required purity or physical stability batch after batch.
Our years spent scaling up production, managing real-world reaction kinetics, and watching the quality assurance team pull vials from the line for GC-MS analysis, sharpen awareness of the factors that really matter: reliable synthesis routes, manageable byproducts, and process windows that avoid choke points in filtration, drying, and crystallization. With this compound, those experiences have driven every decision.
Looking at its structure, experienced chemists see converging pathways coming together in a late-stage coupling: a powerful chroman backbone, robust methyl group packing, and a pyridine-3-carboxylate function that determines both the hydrophilic-lipophilic balance and the interactions downstream. Synthetic challenges draw out the best from process engineers—a molecule with multiple chiral centers and separate domains, each carrying its own reactivity. This is no commodity grade ester or simple alcohol to be peddled by the ton. Customers in pharma, nutrition, and specialty materials regularly refer to this compound when searching for superior antioxidant performance in lipid-based systems, or for precise modulation of molecular interactions in advanced formulation work.
Talk to anyone on the packing floor. Batches shipped last year match those sent recently in their analytical fingerprints, not only on lab printouts, but under the scrutiny of client QC teams worldwide. We enforce these standards because we understand what happens when one lot exceeds the next in trace aldehydes, residual catalysts, or color bodies. Devices, formulations, and critical blends demand more than a glossy data sheet—they require product that plays well with other ingredients and holds up over long-term storage.
During each run, operators monitor chiral purity and inspect for even minor shifts in the spectral signatures. These steps are not just checkboxes for compliance. Over years of customer feedback, we have seen how subtle differences in methylation profiles or chromatographic retention times trace directly back to early reaction design and solvent choices. Many processes fail under the strain of small variations—a lesson taught in hard-won experience and lost client trust.
Handling this molecule at scale uncovers what pure academic synthesis rarely reveals. The way the tridecyl chain integrates with the chroman framework, for example, delivers much more than solubility—it influences flow behavior in high-throughput manufacturing, and even the tactile properties in certain end-use applications. Fine-tuning cooling rates or solvent ratios during crystallization leads to noticeable shifts in wetting and blending profiles—a detail some dismiss, yet for which customers running high-value product lines give immediate feedback.
There are alternate esters, alternative tocopherol derivatives, other pyridine-related structures populating the market. Many of these emerge cheaply via bulk process routes, but not all can deliver the precise anti-radical activity or the predictable partitioning into oily matrices needed by critical users. There is a clear difference between random methyl group placements in off-brand generics and the tightly controlled stereochemistry delivered with (2R)-2,5,7,8-tetramethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-3,4-dihydro-2H-chromen-6-yl pyridine-3-carboxylate. The difference becomes apparent during stress testing—formulators spot it when tracers indicate batch-to-batch drift in reactivity or color.
No chemical is produced in a vacuum. Even before rolling out pilot batches, feedback loops with downstream users shape our process parameters. Demands from dietary supplement developers differ from those in the specialty coatings arena. The former often request certificate-backed assurance of absence of PAHs (polycyclic aromatic hydrocarbons) and off-odor species, while the latter scrutinize performance under UV exposure and aggressive mechanical stresses.
Our own technical support team’s direct lines to R&D labs inform tweaks to purification and packaging, allowing sharp responses to evolving requirements. Over years, we have seen these shifts, especially as regulatory targets regarding trace solvents or unreacted monomers grow tighter. Working closely with both small-batch formulators and multi-tonne industrial clients, we learned that transparency matters more than grandeur in advertising. Clients need molecule integrity and responsive troubleshooting above all else.
Walking through the QC lab, instruments measure what matters—optical rotations, chiral purity using HPLC, precise mass spectra for key fragments, and targeted NMR regions that light up only when the right stereochemistry is present. We run broader heavy metal screens and micro-tests for phosphorus, as phosphate-based catalysts sometimes sneak past inattentive processes. It is vital to speak honestly about these results; one-off high readings signal instrument drift or a procedural slip, not the routine.
Documenting stability has meant organizing real-time and accelerated storage experiments. In some cases, the results triggered redesigns of bulk container liners or outer wrappings. Several years ago, a batch showed faint yellowing after prolonged exposure to warehouse heat spikes. Post-mortem analysis pinpointed an overlooked stabilizer in a lesser supplier’s solvent. From that lesson, stricter in-line checks and source audits cut out such surprises, building a base for the confidence clients report today.
Most new clients want to know exactly where our product sits in relation to the competition. We focus our energy and resources on one grade—suitable for this compound’s main users in advanced supplementation and specialty chemical arenas—rather than chasing a wide array of compromised options. After all, the reality of full-scale production means deep familiarity and tuning over time, not chasing micro-optimizations or diluting efforts across too many variants.
There is a technical reason for this approach. Each lot produced reflects process controls tuned to real output, not to abstract technical targets. Predictable melting ranges, particle size for blends, and solvent residue levels stem from actual feedback and bench-scale upscaling, rather than marketing-driven speculation. Users have confidence that product from this year’s run matches that from five years ago, thanks to an unwavering focus on operational realities.
Those who have sampled generics from unfamiliar suppliers often encounter issues with batch heterogeneity or separation during blend preparation. Visible residue, uneven color, or inconsistent flow through feeders are all red flags—troubles we have solved through incremental process tightening and a priority for material traceability.
Inside the plant, we see requests ranging from gram-scale samples for university groups to multi-ton shipments for seasoned multinational brands. In the nutrition segment, this molecule features in blends aimed at oxidative stress defense, where it outperforms less-modeled esters due to its reliable migration into oil phases and compatibility with functional carriers.
Formulators who tackle tough challenges in polymer stabilization or advanced lubricants seek this molecule due to its thermal resilience. Even minor alterations to its side chains ripple through final product behaviors. In complex polymer blends, for example, chain transfer properties and resistance to free-radical propagation trace directly back to the specific chroman-ketone interface developed through our process. This relationship surfaces only during hands-on development, not from reading off-the-shelf specification sheets.
Another notable application surfaces in niche coatings, where the product helps maintain transparency and flexibility under high-light or high-temperature service, avoiding many pitfalls encountered with less-resilient molecular analogues. Many smaller specialty firms have recounted time saved on compatibility experiments, transitioning from less refined products to our consistent output, as solubility, dispersion, and shelf-life results improve.
Open dialogue with technical and production leads at client sites shapes much of how we plan improvements. Occasionally, a batch lands unexpectedly at the top end of the color spec. After examining logs, we track the shifts back to new filtration media, sometimes as subtle as a different weave or unexpected charge from a supplier change. Customer feedback keeps us alert and honest—real challenges motivate regular tweaks in the process rather than complacency.
We learned, repeatedly, that user priorities change. One year, heat stability rules the day; the next, trace element tolerances dominate discussions, especially for pharma-related applications. Feedback led us to implement more frequent calibration for trace metal assays and branched-chain impurity checks. Such changes cost in the short term, but the longevity of partnerships outweighs patchwork fixes.
Several years ago, one key partner in the supplement industry called after a batch missed their blending spec for particle size. A focused investigation revealed a minor adjustment to a granulator blade speed in our facility. Correcting this minor setting led to overnight improvements, preventing wasted months for that client’s development cycle. Stories like these happen not in sales offices, but on the production line and in the labs.
Year after year, market and legal standards shift. Experience tells us that holding on to old verification routines does not cut it. A decade ago, aromatic solvent traces caused few concerns; now, regional food and pharma regulatory bodies demand quantification at ever tighter limits. Larger customers occasionally send their own analysts to our site—here they see, firsthand, why redundancy in solvent trap design or batch traceability pays dividends.
Late one summer, an unexpected national regulation reclassified trace impurity reporting for a set of chroman-related compounds. To avoid delays, our compliance team worked overnight revising protocols, running additional quantitation, and submitting revised documentation. These changes translate directly into tighter process windows and tougher QA cycles—a reality few outside the industry truly grasp, unless they have lived through similar surprises and last-minute shipment holds.
From a manufacturing standpoint, nuances seen during scaling loom large, where the difference between a well-made and poorly executed (2R)-2,5,7,8-tetramethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-3,4-dihydro-2H-chromen-6-yl pyridine-3-carboxylate rests with careful handling of heat, moisture, and pH during post-reaction work-up. Many incidents spring from slight deviations at these stages, leaving downstream headaches for blenders and formulators.
Batch traceability, too, sets our approach apart. Rather than relying on abstract tracking or off-site warehouses, materials flow under one roof, through controlled spaces. Discrete batch coding, supported by full analytical histories kept on site, permit detailed investigations on the rare occasions when something goes awry.
From years of customer support, we observed that no two application areas have exactly the same problem set. What one high-purity client flags as a concern, another rarely mentions. This variety means our plant cannot operate as a simple volume machine. Experience in upstream feedstock selection and hands-on adjustments to process variables repeatedly prove their worth, even in the face of ever-increasing margin pressures.
Every chemical manufacturer faces real-world challenges: raw material volatility, changing safety requirements, and the inevitable pressure to cut costs while preserving quality. The best solutions have always come from lean, transparent process management and hands-on engineering. We invest in operator training so that process shifts or minor drifts in reactant quality are recognized early.
Implementation of modular analytics, with frequent checks during each process step, cuts down on both batch loss and the risk of non-conformity during customer audit. On the equipment side, upgrades sometimes mean shifting reactor configurations, adopting better seals or agitator designs to suit more demanding controls.
Feedback loops—direct from the end-users—remain critical. Open reporting on off-grade material, process remediation, and the ability to ship under verified, stable conditions keep clients engaged and product recalls rare. We learned that fast, honest reporting to stakeholders on any deviation, plus willingness to rerun analyzes or rebatch material at our own cost, creates lasting confidence. Nothing replaces experience at scale or the lessons learned from real accountability.
To stand out and continue delivering at high standards, we direct resources toward upstream supplier verification and sustained investment in quality control. By balancing these priorities, and never shying away from the complex, high-value products most needed by the market, (2R)-2,5,7,8-tetramethyl-2-[(4R,8R)-4,8,12-trimethyltridecyl]-3,4-dihydro-2H-chromen-6-yl pyridine-3-carboxylate demonstrates the best traditions of hands-on chemical manufacturing—meeting practical specifications and solving problems collaboratively, every step of the way.