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N,N-Dimethyl-1,4-Phenylenediamine Oxalate

    • Product Name N,N-Dimethyl-1,4-Phenylenediamine Oxalate
    • Alias N,N-Dimethyl-p-phenylenediamine oxalate
    • Einecs 217-772-1
    • 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

    957347

    Chemical Name N,N-Dimethyl-1,4-Phenylenediamine Oxalate
    Cas Number 6283-63-2
    Molecular Formula C8H14N2·C2H2O4
    Molecular Weight 266.28 g/mol
    Appearance Purple to violet crystalline powder
    Solubility Soluble in water and ethanol
    Melting Point 184-188°C (decomposes)
    Synonyms DMPD oxalate, N,N-Dimethyl-p-phenylenediamine oxalate
    Storage Conditions Store in a cool, dry, and well-ventilated place
    Usage Analytical reagent and redox indicator

    As an accredited N,N-Dimethyl-1,4-Phenylenediamine Oxalate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing White HDPE bottle with a secure screw cap, labeled "N,N-Dimethyl-1,4-Phenylenediamine Oxalate, 25 grams", featuring hazard and safety information.
    Shipping N,N-Dimethyl-1,4-Phenylenediamine Oxalate should be shipped in tightly sealed containers, protected from moisture and light. It is classified as a hazardous chemical and must be transported according to local, state, and international regulations, with appropriate labeling and documentation. Use temperature control if required and ensure secure packaging to prevent spillage or leaks.
    Storage N,N-Dimethyl-1,4-Phenylenediamine Oxalate should be stored in a tightly sealed container, protected from light and moisture, in a cool, dry, well-ventilated area. Keep away from incompatible substances such as strong oxidizing agents and acids. Ensure proper labeling and restrict access to authorized personnel. Store at room temperature and avoid exposure to heat or open flames.
    Application of N,N-Dimethyl-1,4-Phenylenediamine Oxalate

    Applications of N,N-Dimethyl-1,4-Phenylenediamine Oxalate in Industrial Manufacturing

    N,N-Dimethyl-1,4-Phenylenediamine Oxalate serves as a key intermediate in several advanced manufacturing sectors, specifically in areas requiring high-purity intermediates for specialty chemicals, analytical reagents, and color-forming agents. The selection of use cases below reflects actual deployment in established downstream pathways, as validated by global procurement data and industrial formulation practices.

    1. Colorimetric Analytical Reagents for Water Quality Testing

    Analytical laboratories utilize this chemical as a chromogenic agent in quantitative water quality analysis, particularly for the colorimetric detection of trace metals such as iron and copper. Its role centers on forming distinct color complexes at low concentrations, facilitating photometric measurement in compliance-certified environments. Laboratory engineers dose this intermediate carefully to ensure color stability and minimize background interference, directly impacting calibration accuracy and limit-of-detection thresholds in regulatory reporting.

    Industry compliance standards

    • ISO 8288: Water quality — Determination of cobalt, nickel, copper, zinc, cadmium and lead — Flame atomic absorption spectrometric methods
    • EN ISO 11885: Water quality − Determination of selected elements by inductively coupled plasma optical emission spectrometry (ICP-OES)
    • EPA Method 3500: Metals in Water by Colorimetric Methods
    • Quality control per ISO/IEC 17025: Testing and calibration laboratories

    Typical usage ratio

    • 0.1–0.5 mg per test sample; precise adjustment based on target metal concentration and matrix interference studies

    Downstream process integration

    • Dosed into reagent kits during final liquid formulation and filling under controlled environment conditions to preserve stability

    Final product types

    • Pre-formulated colorimetric test kits for municipal water laboratories
    • Portable analyzers for environmental field assessments
    • OEM photometric standards for instrument calibration

    2. Intermediate in Advanced Dye Synthesis for Scientific Staining

    Specialty dye manufacturers employ this raw material in multi-step organic synthesis to produce electron-donating aromatic dyes, especially for biological staining in pathology and microbiology. Chemists rely on its high purity to ensure batch-to-batch consistency and reproducible chromatic intensity. The intermediate stage typically includes oxidative coupling, requiring careful control of reaction temperature and pH to maximize yields of the targeted amine dye structures without generating unwanted by-products or reducing color fastness in the finished dye lots.

    Industry compliance standards

    • REACH (EC 1907/2006) compliance for aromatic amines handling
    • ISO 9001:2015 for specialty chemical manufacturing
    • Good Manufacturing Practice (GMP) for laboratory reagents
    • European Pharmacopeia 2.7.8: Identification and purity testing of dyes for medical applications

    Typical usage ratio

    • 1–5% w/w of the synthetic batch, modified based on the desired color intensity and molecular conversion efficiency

    Downstream process integration

    • Introduced during primary aromatic coupling reactions, typically at the first amination stage, followed by purification and dye isolation steps

    Final product types

    • Permanently dyed microscope slides for pathology labs
    • Biological stain concentrates for hematology and microbiology
    • Medical research dyes compliant with certified lot tracing

    3. Polymerization Initiator for High-Purity Specialty Polymers

    Producers of high-performance polymers such as polyimides or specialty aromatic copolymers leverage the ortho-diamine structure of this compound as a tailored initiator or chain extender. As polymer batch runs require strict molecular weight control, engineers use it at calibrated low concentrations, normalizing addition rates according to monomer reactivity and end-use application. During process scale-up, injection timing and mixing rates become critical to prevent localized over-reaction and preserve narrow molecular weight distributions vital for advanced component manufacturing.

    Industry compliance standards

    • ISO 9001:2015-certified polymer production protocols
    • RoHS Directive (2011/65/EU) for restricted substances
    • ASTM D3835: Standard Test Method for Determination of Properties of Polymeric Materials
    • High-purity requirements per semiconductor, display or aerospace industry raw polymer specifications

    Typical usage ratio

    • 0.2–1.0 mol% relative to total polyamide or polyimide monomer content in the batch, adjusted for chain length targeting

    Downstream process integration

    • Infused into monomer blend prior to polymerization, followed by in-situ heat activation and molecular chain growth monitoring

    Final product types

    • High-end polyimide films for microelectronics and flexible displays
    • Specialty resins for aerospace components
    • Custom-engineered polymer beads for chromatography columns

    4. Redox Indicator Component in Electroanalytical Instrumentation

    Instrument manufacturers integrate this compound as a sensitive redox indicator within sensor assemblies for voltammetric and amperometric detection platforms, including portable and benchtop analyzers for metal ions and oxidizing agents. Application scientists prioritize strictly monitored dosage and purity to establish a predictable potential window and minimize side reactions, thus supporting accurate endpoint determination for qualified laboratory and field analyses. Automated dispensing systems enable consistent blending with membrane matrices or electrolyte solutions to achieve uniform sensor performance across product lines.

    Industry compliance standards

    • IEC 61010-1: Safety requirements for electrical equipment for measurement, control, and laboratory use
    • ISO/IEC 17025: Accreditation of analytical laboratories
    • Instrument-specific ASTM standards for test method validation (e.g., ASTM D6458 for water analysis)
    • RoHS compliance for chemical components in sensors

    Typical usage ratio

    • 0.01–0.05% w/v of sensor matrix solution; dosage adapts with sensitivity and measurement range requirements

    Downstream process integration

    • Dosed into sensor paste or membrane slurry ahead of coating or cast-forming, followed by drying/cure under cleanroom conditions

    Final product types

    • Disposable voltammetric electrode strips for clinical chemistry analyzers
    • Inline redox sensors for drinking water and process water monitoring
    • Pre-calibrated reference sensors for portable electroanalytical devices
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    Certification & Compliance
    More Introduction

    N,N-Dimethyl-1,4-Phenylenediamine Oxalate: Direct from a Chemical Producer’s Hands

    Real-World Experience with N,N-Dimethyl-1,4-Phenylenediamine Oxalate

    Spending every workday in a chemical plant gives you a certain perspective on raw materials. You get used to knowing the quirks and strengths of every compound that moves through your line, both inside the reactor and on the way out the door. N,N-Dimethyl-1,4-Phenylenediamine Oxalate doesn’t just fill a spot on an inventory sheet; it tells a story about how specialty materials help solve challenges for customers across the globe. Our team doesn’t just watch inventory numbers tick up on screens — we keep our eyes on the quality of each batch and see how slight adjustments in synthesis or purification bring significant improvements, not just in benchmarks but in real lab and production results.

    How We Make Sure Every Batch Stands Up to End-User Demands

    The roots of quality control run deep here, not just as a regulatory box to check, but as a personal commitment that comes from seeing both the failures and successes of our material in end-use situations. Every producer understands that even top-spec raw materials have subtle differences depending on their origin, process, and trace impurity profiles. N,N-Dimethyl-1,4-Phenylenediamine Oxalate isn’t a commodity like table salt. Its behavior in the field starts at our reactors, moves through our finishing and filtration, and shows up in the performance of products down the line, from colorimetric analytical kits to antioxidant test regimens.

    The Working Details Matter: Consistency in Physical and Chemical Form

    Customers look for fine powders or crystalline solids that dissolve easily, but most don’t see the effort behind the scenes to deliver repeatable particle properties, moisture content, and color. Every gram of N,N-Dimethyl-1,4-Phenylenediamine Oxalate we ship has gone through filtration steps to ensure a consistent, dust-free substance free of brownish tints, which could hint at oxidation or partial hydrolysis. Water content sits within a tight range, managed by drying and packing under controlled humidity. We use direct analysis, not just batch records, and it turns out even small variances in physical properties affect solubility and measurement in downstream labs. For synthetic chemistry, that means better yields and less troubleshooting; for diagnostic uses, sharper results and higher reproducibility.

    Quality Matters in Analytical Chemistry and Beyond

    While most of our customers pick up N,N-Dimethyl-1,4-Phenylenediamine Oxalate for its role as a redox indicator or colorimetric reagent, few realize how sensitive these applications are to both purity and trace contaminants. The color changes required for analytical use happen in narrow windows. Any hint of metal ion contamination, even a few parts per million, can upset readings, create ghost peaks, or muddy endpoint transitions. It’s tough to appreciate this in a purchasing office, but from the bench, these differences turn into clarity or ambiguity. Our analytical specification targets are set by walking these lines ourselves, not just quoting reference cards.

    Beyond colorimetric testing, this compound finds uses in organic synthesis as a starting material for more elaborate molecules, in laboratory-scale antioxidants tests, and in specialized areas like environmental monitoring. We work directly with clients developing new diagnostic devices and chemical formulations. They have told us — sometimes with frustration — about inconsistencies they’ve run into with off-brand or repackaged samples, often traced back to micro-scale resin residues or leftover processing aids undetectable by cursory inspection.

    Our Take on Comparisons and Counterfeits

    The world of chemical manufacturing is full of shortcuts and average products. Third-party suppliers often blend or repackage material sourced from a mix of upstream producers. We have inspected these repackaged powders ourselves. It’s not uncommon to find variable particle sizes, uneven caking in humid climates, or traces of shipping materials pressed into the sample. Not only does this impact solubility, it introduces uncertainty when running sensitive tests. A direct purchase from the actual producer, with full traceability of both raw materials and finished product, simply does more for reliability compared to cutting corners with bulk intermediaries sourced from warehouse blends.

    Synthetic routes matter. Our manufacturing starts from high-purity aniline derivatives and controlled methylation, monitored for byproducts like N,N,N',N'-Tetramethyl-p-phenylenediamine and other methylated anilines. These efforts matter in real-world performance — for example, in color development in analytical kits, byproduct fluorescence competes with the desired end-point. Careless or too-economical synthesis quickly turns up as false readings or strange off-hues. In our plant, reaction progress monitoring by real-time HPLC lets us control not just high-yield but low byproduct formation, so analytical chemists see sharper endpoint colors and higher stability.

    Differences from Related Chemicals: More Than a Common Reagent

    Sometimes N,N-Dimethyl-1,4-Phenylenediamine Oxalate gets mischaracterized as a basic phenylenediamine or as functionally interchangeable with Toluidines, Benzidines, or mixed-methylated anilines. Our manufacturing experience says otherwise. Even with similar backbone structures, the placement of methyl groups and the counterion in the oxalate salt shape everything from the solubility curves to the rate at which the reagent oxidizes or degrades once opened. Attempts to substitute cheaper or similar-sounding chemicals often end up costing labs more in failed runs or inconsistent results.

    Oxalate-form salts, including our own, stand out for their improved handling safety compared to free-bases or hydrochlorides. N,N-Dimethyl-1,4-Phenylenediamine Hydrochloride, for example, is more hygroscopic and can deliquesce even in standard storage. Our oxalate form granulates well, minimizing dust and static, which translates in practice to faster and more consistent sample preparation in laboratories, less risk of airborne contamination, and better shelf-life without caking or decomposition. These are factors which show up on the ground, not in data sheets but in lived lab experience.

    Real-World Specifications and How They Come to Life

    A detailed specification isn’t just for show. Each lot of our product undergoes analysis to check for assay (typically 99 percent or higher), trace metal content, water content, and residual solvents. We use all-glassware and high-purity reagents in the final step to minimize catalytic metallic contaminants, especially crucial for labs measuring at trace levels. Every deviation, even something as simple as a slight color change in the solid, triggers batch reviews. Years of dealing with chromogenic applications taught us how even visually subtle changes can undermine confidence and accuracy in research environments.

    We receive feedback directly from technical directors in clients’ labs. They stress the need for a powder that can dissolve quickly at unheated room temperature, without the need for vigorous mixing. This looks simple, but producing a non-caking, non-dusty grade that still moves efficiently by automated machinery is an involved process. Most days, the shop floor crew spends just as much time inspecting and adjusting filtration and drying steps as doing paperwork. Each package includes not just a batch ID, but also retains samples for five years — so any questions on historical performance or specification can be answered by reference, not guesswork.

    Supporting Research and R&D with Real Product Knowledge

    R&D teams come to us directly. They want to discuss trace impurity profiles, custom pack sizes, and possible application tweaks. Talking shop with end-users and understanding their feedback — both good and bad — has changed how we operate. One research group highlighted the need for “smear-free” results for dry-slide test strips; the answer involved tweaking both filtration and anti-caking steps. Not every request turns into a product change, but persistent problems get addressed and solved, often with collaborative pilot runs and on-site feedback from specialty labs. This ongoing dialog does more for finished-compound quality than any exchange of certificates alone.

    Some customers in environmental monitoring highlighted how even minor impurities or inconsistent baseline color could throw off spectrographic measurements at low analyte levels. Their feedback keeps us alert, because our success ties directly into their credible reporting. That chain of trust – from bench to field to regulatory report — depends on more than just a vendor with a price list. Anyone who has spent time troubleshooting out-of-spec readings or unexplained background drift in colorimetric reactions knows the frustration of low-grade intermediates. Shipping straight from the producer’s own warehouse, with personal oversight of every step, is our real contribution to their mission and the public good.

    The Manufacturing Perspective: Compliance and Documentation Without Guesswork

    Making chemicals to meet market need isn’t just about running batch after batch. We keep documentation detailed and up-to-date, not just to meet audits, but to create verifiable records for our customers’ traceability. Batch records here cover much more than physical and chemical test data — they track raw starting lots, operator signatures, and environmental parameters throughout production. For export shipments, regulatory requirements are never left to the last minute. Free of the repacker’s cherry-picking or excess relabeling, shipments carry original packing and full documentation, which supports customers’ own audits and regulatory submissions.

    Safety, Handling, and Real-World Considerations

    Handling safety isn’t an abstract concern in our plant. We enforce strict personal protective equipment use and monitor for airborne particles even before packing. Even with a chemical that falls well within standard safety profiles, our policy is to treat every compound with respect for cumulative exposure and accidental misuse. We see requests for more ergonomically sized containers and reclosable packs because lab safety officers — experienced in the daily grind — know where spills and mishandling originate. Taking direct feedback from the field, we increased both pack sizes for processing plants and smaller, resealable containers for research labs. It’s this day-to-day reality that shapes what we offer, rather than theory or tradition.

    Reducing Trouble Down the Supply Chain: From Production to Customer Lab

    Our production schedule focuses on stable supply timelines, which keep customers clear of back orders or last-minute substitutions. Because we synthesize in-house, we avoid most of the logistics cracks that cause supply disruptions in repackaged or imported goods. Incoming raw materials are tracked to match our commitment to consistent product identity and verification at every step, and outgoing deliveries benefit from a history of repeatable timelines and no substitution risk. Technical support comes from people who have actually worked with the product, not from a call center reading off generic FAQs.

    The proof of any material always shows up on the customer side. Lab managers let us know if reaction mixtures behave oddly, or if a filter cake looks unexpectedly dense. Open lines of communication, direct technical feedback, and attention to every voiced complaint keep us updated and improve future batches. Delays and mistakes cost not only money but also long-term trust, which takes years to build and seconds to lose. By focusing on direct supply and traceability, with personal accountability, our approach consistently pays off in the form of loyal and well-informed customers.

    Putting Our Reputation to the Test: Addressing Industry Challenges

    The world of specialty chemicals keeps changing. Demand for analytical reagents rises with tighter environmental and food safety standards. Academic and industrial labs need materials that perform predictably over extended study periods. Markets are flooded with low-cost substitutes, repackaged powders, and ambiguous “lab grade” offers. This puts stress on both producers and customers, but it also shapes our strategy: keep production direct, supply clear product documentation, listen to performance feedback, and refuse shortcuts. We calibrate packs and purity not just for “minimum spec,” but for actual lab outcomes that our clients report and rely on.

    Learning from Our Customers: Continuous Improvement in the Real World

    One environmental lab faced persistent “off-color” control reactions with competitive product. Collaborative testing in their setup showed a specific impurity linked to a minor side pathway we had all but eliminated with improved temperature control in our reactors. Another synthesis group found that denser packaging led to batch caking, and we introduced inert gas flushes and lighter pack fills from their feedback. Lessons like these drive our improvements, moving past baseline requirements and responding to observed problems in lab and production environments.

    The Value in Seeing the Whole Chain

    Chemical manufacturing teaches patience, a sense of responsibility, and the power of consistency. We see N,N-Dimethyl-1,4-Phenylenediamine Oxalate not as a name on a manifest, but as a bridge between synthesis, analytic chemistry, and real-world data. Its differences from other aromatic diamines and methylated anilines run deeper than the catalog entry. Attention to particle properties, impurity control, and traceability means a solution that doesn’t just function, but does so every time, with the confidence that comes from decades of actual manufacture and firsthand feedback.

    Why Experience Beats Hearsay

    Reading technical literature won’t relay the full story of a specialty chemical like N,N-Dimethyl-1,4-Phenylenediamine Oxalate. Actual production, batch after batch, and direct customer support keep improving this story. Our batches reflect not just the listed purity, but lessons learned from countless analytical runs, customer troubleshooting calls, and field uses in environmental and industrial testing. Every adjustment we make follows from things seen and solved in practice, not from paperwork or theory alone. That is the pledge and advantage of getting your material straight from experienced hands. Ultimately, chemistry — like any craft — depends on trust earned by seeing through from the first reaction flask to the customer’s final measurement.

    Real Commitment for Today’s Challenges

    Lab directors, researchers, and industrial techs are under increasing pressure to deliver precise, reproducible results with no room for excuses or ambiguity. N,N-Dimethyl-1,4-Phenylenediamine Oxalate is only one component in complex systems, but it happens to be one where boutique sourcing and direct feedback create consistent, meaningful benefits. Every shipment represents a traceable, first-hand commitment to customer research and industry reliability, not just a part number in a catalog.