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HS Code |
729751 |
| Chemical Name | 2,6-Naphthalenediol Diacetate |
| Molecular Formula | C14H12O4 |
| Molecular Weight | 244.24 g/mol |
| Cas Number | 5732-68-3 |
| Appearance | White to off-white solid |
| Melting Point | 153-155°C |
| Solubility | Insoluble in water; soluble in organic solvents |
| Purity | Typically ≥98% |
| Smiles | CC(=O)Oc1ccc2cc(OC(=O)C)ccc2c1 |
| Storage Conditions | Store in a cool, dry place; keep container tightly closed |
| Synonyms | 2,6-Diacetoxy naphthalene |
| Inchi | InChI=1S/C14H12O4/c1-9(15)17-11-5-6-12-8-13(18-10(2)16)4-3-7-14(12)11/h3-8H,1-2H3 |
As an accredited 2,6-Naphthalenediol Diacetate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 2,6-Naphthalenediol Diacetate is supplied in a 25g amber glass bottle with a secure screw cap and product labeling. |
| Shipping | 2,6-Naphthalenediol Diacetate is shipped in tightly sealed containers to prevent moisture and air exposure, ensuring product stability. Packages are labeled according to chemical safety standards and cushioned for transit. Store and transport in a cool, dry environment. Handle with care, following all relevant transport regulations for chemicals. |
| Storage | 2,6-Naphthalenediol Diacetate should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area, away from sources of ignition and incompatible substances such as strong oxidizers or acids. Keep it protected from moisture and direct sunlight. Ensure proper labeling and access restrictions. Storage under inert gas may be recommended to prevent degradation. |
Applications of 2,6-Naphthalenediol Diacetate in Industrial Manufacturing2,6-Naphthalenediol Diacetate enables manufacturers to achieve specific performance targets in selected advanced chemistry pathways. We supply this material directly for use in specialized fields where controlled acetylation, stability, and functional group protection are required for downstream synthesis or material modification. Below we detail established industrial segments where customers specify this molecule for consistent production yields. 1. High-Performance Polyester IntermediatesLeading polyester resin producers incorporate 2,6-Naphthalenediol Diacetate in co-polymerization routes targeting high glass transition temperatures and enhanced dimensional stability. The precise introduction of acetyl-protected diol units supports end-use properties demanded in premium optical, electrical, and engineering plastics. Formulation scientists carefully balance the feedstock blend to optimize melt processability while managing pinhole and crystallization behavior throughout continuous polycondensation cycles. Industry compliance standards
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2. Photographic and Imaging Chemical PrecursorsLarge-scale imaging chemical manufacturers utilize this diacetate as a masked diol for intermediate synthesis in color developer and dye coupler technology. By protecting the phenolic hydrogens, formulators control reactivity during sequential reactions, ensuring batch-to-batch reproducibility in multi-step organics frameworks. This approach underpins the batch reliability required for color rendering and shelf-life performance in professional imaging and photochemical supplies. Industry compliance standards
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3. Specialty Organic Synthesis—Protecting Group StrategiesChemical synthesis plants, particularly producers of fine chemicals and advanced monomers, specify this compound to introduce acetate-protected naphthalenediol units within complex molecule synthesis. Chemists take advantage of its predictable cleavage kinetics and its ability to mask phenolic sites during selective reactions. Its use is essential in multistep batch production, where premature activation of diol groups may lead to off-target side reactions and reduced product purity. Industry compliance standards
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4. Electronic Materials—Polyimide and Resin Adhesive SystemsManufacturers of high-temperature-resistant polyimides and advanced resin adhesives use 2,6-Naphthalenediol Diacetate in specialty formulations. The controlled introduction of acetylated diol groups modulates film flexibility and dielectric properties. Isolated usage in aromatic polyimide synthesis ensures minimal ionic impurities and precise backbone engineering, supporting demanding specification in flexible circuit and microelectronic insulation layers. Industry compliance standards
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5. Performance Coatings and Surface TreatmentsIndustrial coatings manufacturers formulate surface-protective resins with enhanced chemical resistance by integrating this diacetate as a co-monomer in advanced naphthalene-based binders. Its use impacts crosslink density and solvent resistance in thin film applications on metal, glass, and polymer substrates. Process engineers closely monitor acetate group removal during curing, which influences the final film hardness and transparency profile. Industry compliance standards
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Behind every innovation in the chemical industry, reliable intermediates shape the path from idea to implementation. From our manufacturing floor, 2,6-Naphthalenediol Diacetate stands out as a valuable building block, especially in sectors pushing for advanced materials and precise synthesis. We see this compound move from a well-machined reactor vessel, through thorough in-house quality checks, straight into the hands of formulators and R&D chemists set on breaking new ground in polymers, coatings, and specialty chemicals.
Every batch we produce goes through a set manufacturing route starting with high-purity 2,6-naphthalenediol. Through direct acetylation, we introduce two acetate groups to the naphthalenediol molecule, locking its hydroxyl reactivity in a protected form. Internally, our teams refer to our main production variant as Model NDC-26A, reflecting its identity in our catalog and batch documents. Colleagues in process development identified this route years ago for forward compatibility with downstream hydrolysis, which ultimately unlocks the protected dihydroxy functionality at later process stages.
The reality of manufacturing demands more than matching a number or purity target on paper. Our 2,6-Naphthalenediol Diacetate typically offers a purity above 98 percent by HPLC, with moisture content kept below 0.5 percent and color values consistently checked for high clarity. Each parameter finds roots in customer trials—formulators notice any drift, especially when working with condensation polymers or sensitive catalytic couplings. From our experience, any residual acidity or trace metals cause downstream headaches, so we run final checks with both in-house analytics and third-party confirmation when customers have stringent requirements.
Particle size makes a difference in handling and solubility. We granulate Model NDC-26A in a flake or coarse powder format, as finer material tends to clump during transfer or introduce powders into plant environments where dust control has to be a priority. Packing in double-lined polyethylene bags, we guard against moisture uptake, which can slowly hydrolyze acetate groups. This sort of vigilance comes from repeat orders and lessons learned from early trials. We have seen the difference firsthand between a tightly controlled, fully dried product and one that picks up even a hint of dampness; the end-user sees smoother dissolutions and fewer filtration steps, a direct time and cost saver.
We supply 2,6-Naphthalenediol Diacetate to companies at the cutting edge of polymer engineering. Those aiming to produce high-performance polyesters or polycarbonates rely on the consistency of our diacetate intermediate. Classic 2,6-naphthalenediol lacks stability during many polymerization sequences. The acetate groups on our product protect against side reactions like oxidation, providing a smoother pathway to build polymers with both toughness and clear optical qualities.
Pharmaceutical and crop science groups approach this intermediate from another angle. In multistep synthetic sequences, chemists safeguard sensitive hydroxy groups with acetate groups, only removing them at specific late-stage transformations. Our manufacturing process guarantees a predictable deprotection profile, minimizing yield losses during further manipulation. From conversations with R&D labs, we know this predictability matters most for projects on tight delivery timelines, where one failed step translates directly into postponed pilot plant trials or delayed launches.
The pigment industry brings its own requirements, often operating at scale, targeting performance in heat-resistant, colorfast applications. Process chemists here find value in our product’s batch-to-batch consistency, tracing quality control test reports alongside finished pigment performance. Quality slips add up to costly production holds or color drift, which manufacturers and brand owners cannot afford in today’s market.
Producing this compound means tackling both chemistry and logistics, each with its own set of challenges. Sterile environments in pharma demand absence of contaminants, while polymer manufacturers look beyond purity to particle flow and stability. Instead of targeting a theoretical maximum yield, our line operators and quality team anchor each lot to real customer process feedback. Early on, our tanks and filters were prone to cross-contamination after runs of phenolic precursors. We invested in dedicated lines and flush systems, reducing residual contamination to levels below one part per million. This investment paid off in customer retention and repeat orders, with fewer complaints and lower returns.
We calibrate final product checks with modern spectroscopy, but human oversight still leads each approval. Our QC lead runs pilot batches, tests for unwanted byproducts, and signs off every release with a practical eye—what performs flawlessly in a research lab can falter at the 500 kg scale. Experience tells us to watch for subtle color changes or volatility not picked up in earlier analysis rounds. Our in-process monitoring adjusts for seasonality, humidity shifts, or minor reactor fouling, since changes this minor always show up sooner or later in downstream formulations. Our bottom line: quality rooted in hands-on process understanding, not just software-driven analytics.
Chemically, our product sets itself apart from simple diols and mono-acetate naphthalene derivatives. Free diols react unpredictably without protection, forming unwanted oligomers or impacting color stability during melt processing. Mono-acetate materials struggle with incomplete protection, especially when exposed to reactive intermediates under basic or acidic conditions. By fully acetylating both hydroxy positions, we give formulators and synthesis teams a compound that handles more predictably and stores better, especially in bulk applications.
Standard naphthalene diacetates from smaller-scale operations sometimes contain higher residue from starting materials or solvent entrapment. Our internal development program tuned temperature profiles and vacuum drying to limit such residues. It takes hands-on engineering, not just theoretical modeling, to deliver these improvements at commercial scale. Our process deliberately sidesteps excess use of strong acids, reducing potential for unwanted sulfonation side-products also observed in competitor samples during outside evaluations.
We also find, in direct comparison trials, our Model NDC-26A requires shorter dissolution times in industrial reactors and exhibits better shelf life due to tighter moisture control. These differences save purchasing managers and plant engineers hours, allowing them to focus on downstream challenges rather than reworking intermediate batches. We have had polymer customers come back after testing alternate suppliers, noting greater color development and filtration load from less-refined materials, which underscores the value of firm quality control.
Within our plant, safety and environmental responsibility frame every production campaign. We optimize acetylation reactions for high conversion with minimal waste generation, recycling as much acetic anhydride reagent as possible. Operators receive regular safety training, not just for regulatory compliance but to build muscle memory and instinct for recognizing early signs of plant upsets or equipment aging.
Effluent streams get neutralized and treated before release, and we document our water and energy use for both internal improvement cycles and external sustainability audits. We hear more from customers about lifecycle impacts, especially companies already answering to stricter downstream environmental policies. Working with a protected compound like 2,6-Naphthalenediol Diacetate also lowers the risk within clients’ plants of uncontrolled exothermic reactions or degradation, which benefits everyone handling chemical operations on a daily basis.
We engaged with environmental engineers to study waste minimization during filtration and post-reaction workup. In past years, by switching to centrifugation and high-efficiency drying, we cut down our process waste and achieved cleaner separations, benefitting not just our bottom line but the working environment for our employees. The chemical industry rarely faces a single, universal recipe for responsible manufacturing; regular on-plant troubleshooting aligns our workflow with evolving customer and regulatory priorities.
On the manufacturing floor, supply chain consistency ranks alongside chemistry as the most pressing challenge. Over the past few years, raw material interruptions and variable global logistics forced us to double down on dual sourcing and local feedstock reprocessing. We secure naphthalene precursors both from long-term partners and by employing in-house purification, which cushions us from disruptions and allows for nimble scheduling. Every shift in global trade reminds us to plan for disruptions, not just react after the fact.
Energy pricing also affects not just our costs, but timing for scheduled maintenance and expansion. During energy spikes, we stagger production, using real-time plant monitoring to pick optimal run times. In the off-season, this approach also lets us offer more flexible delivery windows to strategic customers who demand just-in-time product, rather than holding expensive inventories. These negotiation points exist only because we know our own process intimately—without an inside view of our pressures and timing, we could not deliver this level of supply assurance.
Temperature- and moisture-sensitive compounds like 2,6-Naphthalenediol Diacetate also challenge warehouse staff and logistics. Air-tight storage systems, tight rotation of inventory, and direct shipment from manufacturing to user avoids the common pitfalls of degradation or loss of assay while in storage. From years in operation, we have moved away from shipping in large, infrequently opened bulk bags to smaller, tamper-evident packages, cutting down on incidents and product queries after long transits.
Over decades of production, experience has taught us that every customer values more than product specs—they rely on transparency about process changes, expected lead times, and even short-term fluctuations in purity or appearance. We routinely hold technical exchange meetings with large polymer and pharma clients to understand how subtle changes show up in their processes. Sometimes these meetings lead to core process tweaks, where we adopt alternate drying or filtration steps, or even adjust flake size to improve handling in their plants.
In one case, a formulation team in the electronics sector requested a much tighter color specification, triggered by trace yellowing in their end-use film. With their feedback, we re-examined our post-reaction filtration, swapped filter media, and brought downstream expectations directly onto our shop floor. The collaboration resulted in a whiter, more consistent product, which fed right back into higher product acceptance and fewer lot rejections. These stories echo the daily reality of chemical manufacturing—customers’ operational feedback closes the loop on plant improvements.
Regular dialogue also helps us flag new application areas. In recent years, materials scientists exploring high-performance glassy polymers reached out to discuss alternate acetylation ratios—leading us to launch pilot campaigns for customized monomers and offer direct technical support for start-up trials. These ventures move beyond simply shipping product, directly involving our technical and quality teams in problem-solving, application testing, and scale-up support.
For us, 2,6-Naphthalenediol Diacetate remains more than a product line entry. Each bag, drum, or shipment connects our efforts in operational discipline, hands-on quality assurance, and responsive service to real progress in advanced materials and specialty chemistry. The value we bring traces not just to chemical purity, but also to understanding the needs and constraints of every end-use case, from lab scale all the way up to multi-ton lots in continuous polymer facilities.
We continue to invest in new monitoring and automation, not to deskill our workforce, but to enhance reliability and keep pace with rapid-fire industrial demands. Long-time employees pass on best practices to new hires, blending tradition with new tools. Whether responding to new regulations, changing feedstock economics, or unanticipated shifts in demand, we know that hands-on problem solving, open lines of communication, and internal flexibility shape our contribution to progress across industries. For every shipment of 2,6-Naphthalenediol Diacetate that leaves our plant, these principles are packaged right alongside the product itself.