|
HS Code |
915246 |
| Productname | Dimethyl(p-Methoxybenzylidene)Malonate |
| Casnumber | 6246-80-4 |
| Molecularformula | C13H14O5 |
| Molecularweight | 250.25 |
| Appearance | Yellow solid |
| Meltingpoint | 92-94°C |
| Solubility | Soluble in organic solvents like ethanol and dichloromethane |
| Purity | Typically >98% |
| Smiles | COC1=CC=C(C=C1)C=CC(C(=O)OC)C(=O)OC |
| Inchi | InChI=1S/C13H14O5/c1-16-11-6-4-8(5-7-11)3-9-10(12(14)17-2)13(15)18-9/h3-7,9H,1-2H3 |
| Storagecondition | Store at 2-8°C, protect from light |
| Synonyms | 4-Methoxybenzylidenemalonate dimethyl ester |
As an accredited Dimethyl(p-Methoxybenzylidene)Malonate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Amber glass bottle containing 25 grams of Dimethyl(p-Methoxybenzylidene)Malonate, sealed with a screw cap and labeled for laboratory use. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Dimethyl(p-Methoxybenzylidene)Malonate ensures secure, bulk packaging and efficient transport, compliant with international shipping standards. |
| Shipping | Dimethyl(p-Methoxybenzylidene)malonate should be shipped in tightly sealed containers, protected from light and moisture. The package must comply with local hazardous material regulations, be clearly labeled, and cushioned to prevent breakage. Standard ambient temperature shipping is acceptable, but avoid extreme heat or cold. Ensure documentation accompanies the shipment for identification and safety. |
| Storage | **Storage of Dimethyl(p-Methoxybenzylidene)malonate:** Store in a cool, dry, and well-ventilated area away from direct sunlight and sources of ignition. Keep the container tightly closed when not in use. Protect from moisture and incompatible substances such as strong acids or bases. Recommended storage temperature is below 25°C. Use only with adequate ventilation and avoid prolonged exposure to air and humidity. |
| Shelf Life | Shelf life of Dimethyl(p-Methoxybenzylidene)Malonate is typically 2-3 years when stored in a cool, dry, tightly sealed container. |
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Dimethyl(p-Methoxybenzylidene)Malonate has grown into a mainstay across many fine chemicals and specialty synthesis pathways. From the manufacturing floor, we see just how many R&D labs, pharmaceutical manufacturers, and agrochemical developers turn to this molecule to streamline their work. It is produced by professionals for professionals — in our case, by technicians and chemists who are deeply invested in both the chemistry and the practical, day-to-day challenges customers face.
Our product draws interest because of its structural role as a versatile building block. Its chemical backbone, featuring two ester groups and an electron-donating methoxy substituent at the para-position, gives it a particular reactivity profile in Knoevenagel condensations, asymmetric synthesis, and the preparation of advanced heterocycles. These are not just textbook observations. We monitor reaction yields and product purities batch after batch, and we hear directly from formulators and process engineers about what works on the bench and in the pilot plant.
Our process utilizes high-purity raw materials with documented origins. Through in-depth kinetic studies and solvent variation, we have minimized by-product formation. Dimethyl(p-Methoxybenzylidene)Malonate achieves a melting point and HPLC chromatographic purity profile that allows researchers to avoid repeat purifications or yield losses. This result is possible due to hands-on equipment calibration, routine analytical verification, and careful control of reaction parameters. Many years of watching reactions proceed in the vessel have given us an acute sense for the impact of residual solvents, as well as the practical effect minor inorganic impurities have on subsequent transformations.
We have responded to feedback by investing in process filters and scrubbing to bring down the aldehyde and acidity content in the final product. Customers often comment that high-quality raw materials lead to smoother downstream processes, whether for transesterification to active pharmaceutical ingredients or for Suzuki coupling partners. By tweaking temperature and agitation rates at scale, our R&D team has reduced the risk of side condensations that would otherwise complicate analysis and increase waste disposal.
Our scale-up experience is not just about larger quantities; it’s about keeping analytical data reproducible and side-products under tight limits. When the product passes internal NMR and IR checks, we know process bottlenecks have been addressed. These checks save time for customers both in early development and plant validation, which becomes clearer during technical troubleshooting calls.
Dimethyl(p-Methoxybenzylidene)Malonate offers a unique combination of chemical youth and bench-tested reliability. Compared to unsubstituted benzylidenemalonates, the para-methoxy group provides boosted electron density, giving higher reactivity and selectivity during certain reactions. From the manufacturer’s viewpoint, this means less time spent in post-reaction purification and higher success rates in scale-up trials.
This molecule stakes out its niche among malonates thanks to its balance between stability and reactivity. Users in the pharmaceutical sector describe fewer problems with oxidative degradation compared to more electron-rich analogs. Chemists working in dye and pigment synthesis find that its substitution pattern leads to strong chromophore precursors, facilitating the design of stable, vibrant colorants.
We routinely compare our product performance versus common alternatives such as dimethyl benzylidenemalonate or dimethyl(p-nitrobenzylidene)malonate. Each variant reacts differently in the same reaction conditions, and often the para-methoxy group brings an edge by fostering efficient nucleophilic attack or enabling more selective reduction. Reactions tend to proceed under milder conditions, meaning smaller energy inputs and streamlined processing.
Our technical staff and QC labs have logged dozens of side-by-side benchmarking experiments, many initiated at the request of process managers who require clear evidence of differentiation. Dimethyl(p-Methoxybenzylidene)Malonate usually requires shorter development cycles in catalytic transformations and shows reduced metal-catalyst fouling during subsequent steps.
Specification sheets mean little without context. Many suppliers list a high purity figure, but behind that number there is a world of detail — which solvents are tolerated, how sensitive the product is to moisture, what levels of residual starting materials are present. It has taken years of repeated synthesis to ensure that our typical purity exceeds 98% by HPLC, that moisture stays under 0.2%, and that each lot offers consistent acid number data. Batch records are reviewed daily on the production floor, and we maintain redundancy in raw material testing so that every shipment counts on predictable chemical performance.
Investment in a robust filtration and drying regimen has paid dividends, especially for those using the compound for chiral auxiliary preparations or as Michael acceptors. At the customer site, this makes a visible difference during HPLC trace review and reaction setup. Lower trace metal contamination rates emerged as we began using stainless-steel reactor linings, which reduced variability and brought less downtime during equipment cleaning cycles.
We see ourselves, not just as providers of a line item, but as part of a continuous feedback loop. Most complaints we field relate to solids flowability or slow dissolution. Our standard lot is a free-flowing crystalline powder, which is regularly tested for mesh distribution. We know from working closely with customers that minor problems in handling often translate into measurable impact on overall project timelines.
Dimethyl(p-Methoxybenzylidene)Malonate finds most of its use in organic synthesis labs and research plants, where it plays a key role in designing new molecules or producing advanced intermediates. Our clients include teams working in drug discovery, scale-up for generics, and in the field of agricultural chemicals where efficiency and purity can mean a competitive advantage. Chemists often favor this material in pathway development, and from our side, it is rewarding to see our batches headline lab notebooks and scale-up protocols.
In the world of pharmaceuticals, the compound is a building block for molecules with a wide range of biological activity. The para-methoxy substitution often leads to scaffolds that support novel pharmacophores or influence solubility profiles. In pigment and polymer research, researchers repeatedly use it as a precursor for dyes that retain brightness and stability. Each batch we ship has a traceable production history — not only for regulatory compliance, but to assure project managers that the product will behave as expected every time.
We have watched synthetic methods evolve over the years. Where older methods called for batch processes with slow cooling rates, modern users often favor continuous flow approaches that can take advantage of faster heat dispersion and precise stoichiometry. We have responded by adjusting our own synthesis flow, working with pilot-scale partners to trial new equipment setups that match emerging market needs.
It is common to see confusion between structurally similar malonates offered at low cost from generic providers. We know from troubleshooting stories that uncontrolled substitution patterns or misidentified isomers can lead to failed reactions and wasted analytical effort. Our in-house cross-checks, including both classical wet chemistry and advanced spectrometric analysis, have significantly reduced wrong-isomer shipment incidents.
Manufacturers face pressure to keep volume up and price low, which too often leads to lapses in quality control. Our long-term investment in personnel training and method validation pays off as customers return to trusted production partners after trying cheaper, lower-quality lots from third parties. The difference, on a practical level, is found in the reaction flask: higher conversion, fewer by-products, and more predictable outcomes.
We have heard directly from researchers burned by variable starting materials. Batch-to-batch reproducibility cannot happen without control over each point in the synthesis chain, starting from aldehyde quality and going through to dry powder handling. We constantly revisit process documentation and retention samples from each batch. Customers can inspect our quality control logs, not just the certificate of analysis.
Sustainable manufacture of Dimethyl(p-Methoxybenzylidene)Malonate goes beyond meeting local discharge codes. It takes years of operational focus and capital investment to reduce fugitive emissions and cut down on solvent waste. Our plant managers work with environmental engineers to recover, recycle, and reuse solvents at every feasible point.
Our team monitors off-gas during key condensation steps with in-line detection, and periodic hazard reviews cover both chemical spill preparedness and chronic exposure prevention. Safety training is an ongoing project. Each run is documented not just for regulatory audit purposes, but so operational knowledge grows with each successive generation of production staff. Our solvent storage and waste management systems result from iterative process reviews, always focused on reducing total environmental impact.
This way of working costs more and requires much more forethought, but pays off in both risk reduction and public trust. Many end users have raised their standards for supply chain accountability, and as manufacturers, we expect those questions. We undergo third-party audits, and improvements are driven by both customer requests and our own operating philosophy.
We know our customers must fight the “unknowns” that show up during scale-up or regulatory filings. Analytical headaches often stem from unrecognized side-product formation or from residues carried over between process steps. Regular feedback cycles between field chemists and our operators have allowed us to identify sources of batch inconsistency before they reach critical thresholds.
We’ve addressed slow dissolution by tuning particle size distribution through post-synthesis recrystallization. This choice led to batches that users dissolve faster and more predictably, especially for high-throughput screening and automated synthesis protocols. For those requiring particular solvent systems, we have adjusted our production for lot-specific washes to reduce potential interference.
Documentation remains a chronic sticking point for many partners. We supply detailed analytic reports and have moved to more transparent online batch traceability. This transparency comes from listening to partners who have had shipments rejected at import due to insufficient regulatory data. Our staff spend real time answering technical queries because we recognize that accountability cannot be outsourced.
For research groups that require tailored performance, we offer lot customization through dialogue with lead chemists. For instance, pigment manufacturers may request specific thermal profiles or greater emphasis on low residue content to suit their processing needs. Our technical staff log outcome data batch-by-batch so customers can request modifications with confidence that requests will be taken up quickly and accurately.
The realm of synthetic organic chemistry is always shifting. We have invested both in new analytical equipment and in face-to-face discussions with leading researchers to keep production methods relevant. When new catalytic systems or green chemistry protocols emerge, our chemists trial compatibility in the plant before rolling out changes to customers.
Dimethyl(p-Methoxybenzylidene)Malonate might be an old friend on the bench, but its applications continue to change with the field. We succeed by maintaining open lines with innovators in academia and industry and by pushing for incremental production improvements — not just top-down mandates, but practical changes championed by those who run the equipment or troubleshoot processes at dawn.
Better, more consistent results come from partnerships where both sides understand the limits and possibilities of the chemistry in play. We do not treat our product as an anonymous commodity, and we encourage users to reach deeper into technical support, troubleshooting, and pilot-scale evaluation.
Many years in this field have shown us that surface-level statistics do not guarantee field success. Our line operators are the first to see a change in crystallization appearance or a slow filter runoff. People, not just instruments or flow charts, drive upgrades in product quality. The plant environment stays dynamic and face-to-face troubleshooting outpaces remote emails.
We replace or overhaul equipment at the earliest sign of change in performance. Process yield does not take priority over long-term reliability—by holding close to this idea, we’ve built resilience into the supply chain. We invite customers to observe audits or pull their own samples on request. Inspection and discussion lead to trust and continual progress.
From batch to batch, our experience guides both manufacturing and customer engagement. When customers face new synthetic challenges or regulatory pivots, our capacity for collaboration carries real weight. Those who try to cut corners in this segment of the chemical industry often fall behind; our long-term view ensures that we keep moving forward with scientific integrity and customer focus.
Dimethyl(p-Methoxybenzylidene)Malonate is more than a building block for academic exercises; it is a real-world tool that carries weight in process chemistry and product innovation alike. Our goal is to keep it reliable, available, and fit for every emerging use case. Through process refinement, hands-on training, and feedback exchange, we keep building a better product and a more responsive operation.
Even as automation grows in the chemical industry, the human factor — experience on the production line, technical intuition in troubleshooting, and honest feedback from customers — decides how effective a product will be outside of the laboratory. As chemists and manufacturers, keeping our eyes on both the details and the broader impact gives us a critical edge and helps our partners succeed in fields where precision truly matters.