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Sodium 2,4-Dinitronaphthoxide

    • Product Name Sodium 2,4-Dinitronaphthoxide
    • Alias Sodium 2,4-dinitro-1-naphtholate
    • Einecs 242-654-6
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
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    Specifications

    HS Code

    260582

    chemical_name Sodium 2,4-Dinitronaphthoxide
    molecular_formula C10H5N2NaO5
    molar_mass 260.14 g/mol
    appearance Yellow to orange powder
    solubility_in_water Soluble
    melting_point Decomposes before melting
    CAS_number 61040-58-0
    stability Stable under recommended storage conditions
    storage_conditions Store in a cool, dry place; keep container tightly closed
    synonyms Sodium 2,4-dinitro-1-naphtholate
    pH Alkaline in aqueous solution
    uses Intermediate in organic synthesis

    As an accredited Sodium 2,4-Dinitronaphthoxide factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Amber glass bottle containing 100 grams of Sodium 2,4-Dinitronaphthoxide, sealed with a red cap and labeled with hazard warnings.
    Shipping Sodium 2,4-dinitronaphthoxide should be shipped in tightly sealed, chemical-resistant containers, protected from moisture and incompatible materials. Transport under cool, dry conditions with appropriate hazard labeling. Handle as a potentially toxic and irritant substance; follow regulations for hazardous chemicals, including documentation and emergency procedures during transit to ensure safety and compliance.
    Storage Sodium 2,4-dinitronaphthoxide should be stored in a tightly sealed container, away from moisture, direct sunlight, and incompatible substances such as acids and strong oxidizers. Store in a cool, dry, well-ventilated area, preferably in a designated chemical storage cabinet. Ensure proper labeling, and keep away from sources of ignition, as the compound may be sensitive to heat and potentially hazardous.
    Application of Sodium 2,4-Dinitronaphthoxide

    Applications of Sodium 2,4-Dinitronaphthoxide in Industrial Manufacturing

    We supply Sodium 2,4-Dinitronaphthoxide directly from our manufacturing plant to a global roster of industrial clients. This advanced naphthol derivative plays a critical role in multiple downstream production lines in specialty chemicals, dyes, pigments, and material science, each subject to strict formulation and quality protocols. We detail below the principal application scenarios, compliance obligations, dosing guidelines, technical integration steps, and typical final products designed for sophisticated manufacturing environments.

    1. Azo Dye Intermediate Manufacturing

    Major dye synthesis operations deploy this compound as a nucleophilic coupling agent for the preparation of tailor-made azo dyes used in cotton and cellulose fiber coloration. Its unique electronic structure promotes consistent shade strength and reproducibility during diazo-coupling, especially for high-fastness textile and paper dyes in high-throughput continuous processes.

    Industry compliance standards

    • OEKO-TEX® Standard 100 restricted substance list for intermediates
    • ZDHC MRSL (Zero Discharge of Hazardous Chemicals Manufacturing Restricted Substances List)
    • EU REACH Annex XVII compliant for textile colorants
    • ISO 9001:2015 certified internal quality system

    Typical usage ratio

    • 2.5%–6.0% by weight relative to primary diazonium salt, adjusted for molar equivalence and desired chromophore yield

    Downstream process integration

    • Enters the reaction vessel following in situ diazotization of aromatic amines as a coupling component under alkaline pH (9–11), generally at 20–30°C; post-coupling, the dye cake is isolated, washed, and dried

    Final product types

    • Direct yellow and orange azo dyes for cotton, viscose, and paper
    • Pre-dispersed dye granules for inkjet textile printing
    • Intermediates for high-washfastness pigments
    • Reactive dye formulations for regenerated cellulose fibers

    2. Pigment Synthesis for High-Performance Coatings

    The compound acts as a functional naphthol intermediate in the synthesis of insoluble azo pigments, contributing to stable color shades and lightfastness in engineering plastics and coil coatings. Strict pigmentary process controls require precise dosing to control crystallinity and particle dispersion within high-performance architectural and automotive finishes.

    Industry compliance standards

    • EN 71-3 for pigmentary materials in coatings
    • ASTM D476 Standard Classification for Dry Pigmentary Materials
    • RoHS Directive (2011/65/EU) heavy metal restrictions applicable to surface coatings
    • ISO 1248:2016 for pigment identification and purity

    Typical usage ratio

    • 1.2–3.0 parts per 10 parts coupling component (by mass), tuned based on target pigment hue, fastness and end polymer matrix requirements

    Downstream process integration

    • Added to the pigment reactor post-acid treatment amid regulated pH control, typically at 40–60°C, initiating precipitation of the azo pigment; pigment slurry undergoes filtration and thermal conditioning before incorporation into masterbatches or dispersions

    Final product types

    • Azo-based red and orange organic pigments for industrial coatings
    • Heat-resistant color concentrates for polyolefins and PVC
    • Solvent- and water-based paint dispersions for coil-coating lines

    3. Photographic Chemicals and Analytical Reagents

    Analytical chemistry sectors utilize this compound as a coupling agent in the synthesis of chromogenic detection substances, where it contributes to the high specificity of color development in spot tests and photographic developer systems. Sensitive downstream operations depend on consistent purity grading and residue control throughout production.

    Industry compliance standards

    • ACS Reagent Grade protocols
    • ISO 6353 for laboratory chemicals (Analytical chemistry use)
    • Internal QC based on photometric and chromatographic purity benchmarks
    • Inventory and traceability per ISO 22367 laboratory risk management

    Typical usage ratio

    • 0.15–0.45 g per test batch or standard solution (formulated as 0.02–0.08% w/v), varied according to developer strength and detection sensitivity required

    Downstream process integration

    • Used as a direct coupling additive in buffered aqueous medium for chromogenic agent synthesis or as an in situ reagent in developer formulations; product batch undergoes microfiltration prior to analytical packing

    Final product types

    • Diazo-based laboratory reagents for qualitative spot tests
    • Enzyme-linked color development kits
    • Specialty developer solutions for X-ray and micrographic films

    4. Organic Synthesis for Agrochemical Active Ingredients

    Leading crop protection producers incorporate the raw material as a key building block in multi-step syntheses of certain nitroaromatic intermediates used for the downstream formulation of herbicidal and fungicidal actives. Process consistency plays a crucial role in maintaining regulatory conformance and impurity profiling of technical grade actives.

    Industry compliance standards

    • FAO/WHO Specifications and Evaluations for Plant Protection Products
    • Chemical industry GMP guidelines as per ISO 15378 for active intermediate manufacture
    • REACH Registration (Title VII—authorization for chemical intermediates)
    • Internal impurity/solvent residue control as per relevant pharmacopeia methods (when exported)

    Typical usage ratio

    • Reactant charge: 7.5–12 mol% based on limiting acid chloride or anhydride used in subsequent condensation or cyclization reactions; precise feed rates governed by stoichiometric and yield optimization during process scale-up

    Downstream process integration

    • Metered addition into pressure reactors during early-stage nucleophilic substitution, typically under inert atmosphere, followed by downstream purification, solvent exchange, and concentration for active ingredient isolation

    Final product types

    • Nitrophenolic intermediates for broadleaf herbicide synthesis
    • Technical grade active ingredient concentrates for formulation into EC, SC, or WP agrochemicals
    • Precursors to fungicidal naphthoxycarboxylic acids

    5. Specialty Polymer Additive Production

    The material serves as a co-monomer or coloring agent precursor in the synthesis of functional polymers and polymeric additives, including UV-absorbing resins, flame-retardant coatings, and photoactive plastic components. Its structural properties allow it to impart desired chromophoric or performance attributes when incorporated at controlled loadings during melt polymerization or post-polymerization functionalization.

    Industry compliance standards

    • ISO 1043-1: Identification and labeling of plastics (additive content declaration)
    • EU No 10/2011 (Plastic materials and articles in contact with food—migration limits, when used in food packaging applications)
    • UL 94 flammability standards for plastic materials
    • QSAR-based assessment for polymer additive authorization

    Typical usage ratio

    • 0.8–2.5% w/w for chromogenic or photoactive polymers; application-specific adjustment when targeting light-resistance or functional surfaces

    Downstream process integration

    • Incorporated as a monomeric co-feed or post-polymerization additive during extrusion, typically at 180–220°C, followed by pelletizing or solution casting, depending on the polymer system

    Final product types

    • Colored engineering thermoplastic parts (e.g., ABS, PC)
    • UV-stable masterbatches for outdoor applications
    • Flame-retardant additive packages in appliance housings
    • Photoactive films for specialty packaging
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    Certification & Compliance
    More Introduction

    Sodium 2,4-Dinitronaphthoxide: Rethinking Specialty Organic Chemistry

    Realities of Manufacturing Sodium 2,4-Dinitronaphthoxide

    Stepping into specialty organic chemistry, experience teaches caution and pride when talking about advanced intermediates such as Sodium 2,4-Dinitronaphthoxide. This compound stands out in labs and on production lines. For those not hands-on in chemical synthesis, the structure marries a sodium ion with a 2,4-dinitronaphthoxide anion. End users pick it out for its reactivity and selectivity, qualities honed in actual production—not just on paper.

    Our facility first handled this compound more than a decade ago. Since then, synthesis methods have moved past basic batch protocols. Today’s process management requires rigid control over temperature, solvent purity, and atmospheric conditions. Skipping a beat with moisture or oxygen introduces side products and messy chromatograms. In contrast to mass-market sodium salts, sodium 2,4-dinitronaphthoxide does not tolerate shortcuts. Material must be sealed and stored under tight conditions, otherwise, one finds degradation products and a dull brown color creeping in, robbing the product of reliability later on.

    Detailed Specifications: Beyond a Simple Formula

    For our standard offering, the commercial model of Sodium 2,4-Dinitronaphthoxide typically reaches at least 98 percent purity as measured by HPLC and titration with standardized acids. We've learned over years of output that water content—often below 0.2 percent (determined via Karl Fischer titration)—matters almost as much as total purity. Residual inorganic salts like sodium nitrate or sulfate reflect production slip-ups and bring headaches for downstream synthesis. These details, drawn from actual process data, teach that not all material on the market meets the needs of researchers working at publication-level accuracy or scale-up operations looking for reproducibility.

    Particle size here also has more impact than one might assume. Our team uses a dual-stage milling and sieving approach, targeting a flowable, non-lumpy powder that disperses easily in organic solvents. End users performing substitution reactions report this gives them consistent results in reactivity, as opposed to the crusty, hard-to-wet cakes that sometimes come from less controlled operations.

    How Chemists Really Use This Material

    Synthetic chemists and R&D departments keep coming back to sodium 2,4-dinitronaphthoxide for several specific uses. One reliable application appears in nucleophilic aromatic substitution reactions. The electron-withdrawing nitro groups activate the naphthoxide ring, permitting easier introduction of functional groups under milder conditions than with unsubstituted analogues. Our partners in pharmaceutical and pigment synthesis point out that introducing groups onto a functionalized naphthalene backbone would be less efficient without this reagent. Production feedback shows that it acts more quickly and leaves fewer byproducts compared to using potassium or lithium salts.

    Environmental applications also flag sodium 2,4-dinitronaphthoxide as a solid choice for safe tagging and detection chemistry. The compound’s distinct chromophore assists with UV-Vis tracking—a feature scientists leverage when tracing reaction progress or residue levels. In contrast to several alternative tagging agents, this sodium salt produces less background interference, making analytical work-up distinctly simpler.

    Curiously, the pharmaceutical teams who buy in bulk tend to focus on the purity grade, reporting that even trace organics from solvent recycling can reduce yield in final API manufacture. To address this, we keep a segregated line for sodium 2,4-dinitronaphthoxide that excludes even minute cross-contamination from other sodium naphthoxides or nitrate-derived products. Documentation, in our experience, means something only when it lines up with observed performance in actual syntheses.

    Comparing to Other Salts and Organics

    It’s worth drawing some lines between this compound and others in the naphthoxide family, or similar salts. Although potassium and lithium 2,4-dinitronaphthoxide technically perform comparable chemistry, sodium strikes a more ideal balance between solubility and reactivity in a range of solvents. Potassium versions form clumpier solids—challenging both to dose and dissolve—while lithium salts display higher sensitivity to ambient moisture, requiring ultra-dry handling. Our QC analysts see these issues almost every cycle with supplied standards, not just in theoretical papers.

    Bulk sodium naphthoxide, whether dinitro-substituted or plain, typically shows broader reactivity and instability profiles. Our customers who have tried cheaper blends mention more off-odor batches and less reproducible spectroscopic readings post-reaction. This lines up with our lab’s spot checks: sodium 2,4-dinitronaphthoxide holds color and analytical integrity several weeks longer when stored in properly purged containers. Even minor lapses in packaging—switching to lower-barrier HDPE rather than aluminum-laminated material—noticeably dull the yellow tint and complicate weighing, especially at the low-gram level required for method development.

    Daily Production: What Actually Goes Into Reliable Output

    Actually putting out a stable, high-purity lot of sodium 2,4-dinitronaphthoxide calls for more than just scale and QA protocols. Operators adjust each batch’s temperature and pressure profile based on current humidity and prior drying cycle data. You learn quickly not to trust temperature probes that haven’t been calibrated within the last five lots. Anyone thinking of skipping vacuum drying at the end for cost-cutting reasons will encounter caking problems days later, often losing product to labor-intensive reprocessing.

    Actual operator stories make up most of our production improvements. One tech flagged the sudden rise in clumping during a humidity spike. After a root cause analysis, we tracked it back to an exhaust fan failure masking low-level condensation in storage barrels. Since correcting that airflow, batch records have shown tighter granulation and much smoother dissolution in downstream applications. The only way to guarantee consistency is by folding in such lived data.

    Staff are trained not just to measure purity, but to spot hue change and dustiness by eye, reporting anomalies before they ever approach analytical thresholds. This focus lands more product within spec, reduces returns, and delivers a compound chemists can actually put to use right off the shelf.

    Addressing Challenges in the Field

    Customers running multi-step synthesis often struggle with persistent side reactions due to batch-to-batch variation in purchased intermediates. From our conversations, researchers say they face yield drops when the upstream sodium 2,4-dinitronaphthoxide source cuts corners. Quick IR and NMR checks only reveal so much. Only a handful of producers bother with full impurity profiling using LC-MS on every batch. We adopted that approach after catching an unknown spot during an internal project; since then, client complaints about reactivity drift have vanished almost entirely.

    Logistics shapes product success more than desk engineers might imagine. We package orders in nitrogen-flushed, triple-sealed liners and ship with desiccant pouches—these steps protect from moisture pickup during customs delays. More than once, we watched external product degrade en route and have since doubled barrier checks on external packaging for every outgoing drum. Tracking this real-world degradation built up a set of in-house standards that now make third-party accusations of “off-grade” much less common.

    From the feedback loop with our customers, documentation has to match observed outcomes. Rigid paper trails mean less than batch-coupled certificates tied to shipment IDs and clear chain-of-custody data. That’s a lesson earned from lost contract awards when we trusted generic auditing rather than hands-on verification.

    Safety and Environmental Realities

    Talking safety and environmental factors, Sodium 2,4-Dinitronaphthoxide requires respectful handling, just like any strongly functionalized aromatic. Storage out of direct sunlight, in dry, cool conditions, falls under actual operational learning, not just compliance. Packs left exposed in a humid dock lose value almost overnight. Decomposition byproducts appear in unused material after a few cycles of improper handling—a direct cost not always obvious to firms focusing just on acquisition price.

    Waste management emerges as a more complex issue in today’s regulatory climate. Nitrophenolics and related material cannot simply be washed down drains or lumped in with standard sodium waste. Following evolving local, state, and transnational law, we adapted on-site treatment and neutralization for naphtholic residues—the result is cleaner discharge reports and zero-incident findings during safety audits. Field techs say this saves downstream clients time on disposal paperwork and cuts the chance for compliance headaches during project audits.

    Shipping procedures changed recently as well. After fielding repeated queries on labeling for “hazardous cargo,” our logistics department updated not just MSDS sheets but full transit manifests to spell out handling and documentation at every checkpoint. Customers in tightly regulated industries appreciate the drop in rejected shipments and unexpected documentation holds.

    Continuous Improvement: Not Just Polishing the Process

    From direct experience, formulating incremental improvements depends less on equipment upgrades and more on staff continuity and information sharing. Retaining skilled supervisors shrinks error rates: shifts staffed by veterans deliver cleaner, more consistent output, with tight adherence to process maps and on-the-fly adjustments drawn from prior mishaps. Rotating staff through both production and QC labs cross-pollinates observation skills, as those who synthesize can spot the telltale signs of off-grade product before formal testing even begins.

    From a management standpoint, investing in steady technician training beats flashy capital outlays. Building up reputation for sodium 2,4-dinitronaphthoxide among discerning clients grows from these daily lessons. An advanced process control cannot replace the practiced hand of an operator stopping a batch on scent, not just numbers.

    On the technical side, we focus research efforts on greener routes—experimenting with less hazardous nitration agents and solvent recovery options. Regulations only tighten, so sustainable synthesis models earn back their development costs over time with reduced disposal and compliance overhead. Data collected from scaled-up trials go into real revisions of SOPs, and our team regularly shares validated improvements across the shop floor, not just in upper management debriefs.

    What Sets Consistent Suppliers Apart

    Seasoned users learn that source selection for intermediates like sodium 2,4-dinitronaphthoxide often spells the difference between success and setback on scale-up projects. Chemists and production managers alike report that lone paperwork is not enough—real trust comes from visible process controls and experienced personnel. In our case, the product’s integrity stems from a disciplined mix of process audibility, hands-on oversight, and a consistent feedback loop with technical users themselves. From answering odd-hour QA emails to running impromptu retention tests for R&D teams, we stick with partners through every ring of their process, knowing that reliability, not the lowest cost, drives long-term contracts.

    Reliability grows out of iterative, real-world experiences. Only ongoing adaptation—both to changing regulation and customer need—keeps a specialty compound like sodium 2,4-dinitronaphthoxide useful, shelf-stable, and worthy of critical applications. Our advice to users? Never settle for vague origin labels or bland specification sheets. Ask for operational details; insist on production histories and use stories. That way, you gain not only a product but a trustworthy tool for fine chemistry, supported by real processes and people deeply invested in every batch.