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Flavianic Acid

    • Product Name Flavianic Acid
    • Alias Pyroglutamic Acid
    • Einecs 242-844-3
    • 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
    VTB
    Specifications

    HS Code

    123560

    Chemical Name Flavianic Acid
    Molecular Formula C10H6O8S2
    Molecular Weight 318.29 g/mol
    Appearance Yellow crystalline powder
    Solubility Soluble in water
    Melting Point Approximately 300°C (decomposes)
    Cas Number 2140-73-8
    Synonyms 2,6-Naphthalenedisulfonic acid, 4-hydroxy-, inner salt
    Storage Conditions Store in a cool, dry place
    Application Analytical reagent
    Stability Stable under recommended conditions

    As an accredited Flavianic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Flavianic Acid, 25g, is supplied in a sealed amber glass bottle with a tamper-evident cap and detailed hazard labeling.
    Shipping Flavianic Acid should be shipped in tightly sealed containers, protected from light and moisture. As a potentially hazardous chemical, it must be labeled according to applicable regulations, handled by trained personnel, and transported with appropriate cushioning and secondary containment. Ensure compliance with local, national, and international shipping guidelines for chemical substances.
    Storage Flavianic acid should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area away from incompatible substances such as strong oxidizing agents. Avoid exposure to moisture, heat, and direct sunlight. Properly label the container and store it in a chemical storage cabinet or designated storage area, ensuring adherence to relevant safety guidelines and regulations.
    Application of Flavianic Acid

    Applications of Flavianic Acid in Industrial Manufacturing

    Flavianic Acid is an aromatic organic compound with distinct redox properties and affinity for metal ions. Our in-house production ensures consistent purity and compliance, matching the quality demands of specialized downstream sectors. Below, we outline verified industrial applications and specific regulatory, formulation, process, and end-use requirements for Flavianic Acid.

    1. Pharmaceutical Intermediates: Synthesis of Antimicrobial Agents

    Pharmaceutical manufacturers incorporate Flavianic Acid as a key intermediate during the synthesis of specific antimicrobial active pharmaceutical ingredients (APIs), especially in the quinonoid and related heterocyclic compound classes. In controlled batch or continuous-flow reactions, the reagent participates in substitution, condensation, or cyclization steps under precisely monitored conditions. Batch records must document raw material traceability and impurity profiles, as regulatory filing requires full process validation, analytical characterization, and stability data before downstream formulation and tableting.

    Industry compliance standards

    • ICH Q7A Good Manufacturing Practice (GMP) for APIs
    • 21 CFR Part 211 (US-FDA) for finished pharmaceutical drugs
    • EU EudraLex Volume 4 GMP requirements
    • Chinese Pharmacopoeia monograph compliance for raw materials (if China market)

    Typical usage ratio

    • Generally 0.5–3.0 molar equivalents relative to target intermediate; final ratio depends on pathway and scale; precise ratio established by route of synthesis and process yield optimization.

    Downstream process integration

    • Added to reaction vessel during identified step of heterocycle formation or oxidation chemistry; monitoring via HPLC or GC analysis until endpoint achieved; waste discharge management follows documented QA protocols.

    Final product types

    • Finished pharmaceutical APIs featuring antimicrobial activity (e.g., certain quinolone derivatives)
    • Bulk intermediates forwarded for further functionalization
    • Stabilized form for inclusion in oral or topical dosage forms (upon complete synthesis)
    • API documentation provided for regulatory submission

    2. Electroplating Additives: Brightening and Leveling Agents for Metal Finishing

    Manufacturers of surface finishing chemicals employ Flavianic Acid as a component in electroplating bath formulations for precious and base metals, particularly for creating uniform copper, nickel, and precious-metal deposits. This additive stabilizes the formation of fine metallic crystals, enhances leveling over complex substrates, and improves finished part appearance. Integration occurs under controlled pH and current density conditions, with dosing tailored to substrate type and plating line specifications. Routine bath monitoring is mandatory to assure deposit quality and compliance with industry specifications for electronics, automotive, and hardware sectors.

    Industry compliance standards

    • ISO 9001:2015 certified production process
    • RoHS Directive (2011/65/EU) for restriction of hazardous substances in electronics
    • ASTM B571, B700 (metal coating quality standards)
    • OEM QC protocols for plated parts

    Typical usage ratio

    • 0.02–0.5 g/L, adjusted by substrate metal, bath temperature, current density and desired finish; higher purity grades used for microelectronic applications.

    Downstream process integration

    • Dosed directly into the plating tank; continuous monitoring by UV-Vis or titration; periodic replenishment during production runs to maintain chemical balance.

    Final product types

    • Electroplated copper, nickel, silver, or gold components
    • Microelectronic connectors and circuit boards
    • Decorative and technical hardware for automotive and appliance industries
    • Corrosion-resistant fasteners and functional metal assemblies

    3. Dye and Pigment Manufacturing: Precursor for Specialty Organic Pigments

    In specialized pigment processing facilities, Flavianic Acid serves as a precursor in the synthesis of azo, anthraquinone, and benzofuran-derived pigments. Reaction control involves diazotization or coupling reactions under temperature- and pH-controlled conditions. Manufacturers document intermediate stability, batch reproducibility, and heavy-metal content. Color strength and solubility of finished pigments depend on optimization of this raw material’s input, as it directly impacts hue consistency and dispersion in industrial coatings, plastics, and printing inks.

    Industry compliance standards

    • EN 71-3:2019 (safety of pigments in toys and children’s products, Europe)
    • REACH Regulation (EC) No 1907/2006 registration for industrial chemicals
    • ETAD (Ecological and Toxicological Association of Dyes and Organic Pigments Manufacturers) guidelines
    • ISO 787-24:1981 for pigment testing procedures

    Typical usage ratio

    • 3–18% by weight of pigment-forming reaction batch; ratio fine-tuned based on color shade target and conversion yield; higher loading for deep hue pigments.

    Downstream process integration

    • Charged into reactor during diazotization or coupling steps; followed by filtration, washing, and drying of crude pigment before finishing/milling into dispersions.

    Final product types

    • High-strength organic pigments for plastics or automotive paints
    • Printing ink concentrates and dispersions
    • Architectural and industrial powder coatings
    • Specialty ceramic colorants (limited by process suitability)

    4. Analytical Chemistry: Chromogenic Reagent for Metal Ion Detection

    Lab consumable and environmental monitoring suppliers use Flavianic Acid in the formulation of analytical reagent kits, particularly for colorimetric detection and quantification of selected metal ions in water, effluents, and industrial process streams. Chemists prepare standardized reagent concentrations to ensure reproducible color development and calibration standards; attention to purity and contamination is critical, as minor impurities disrupt chromogenic reaction and interfere with lower detection limits. Documentation includes batch COA, traceability records, and fit-for-purpose validation reports.

    Industry compliance standards

    • ISO/IEC 17025 laboratory accreditation for chemical analysis
    • Standard Methods for the Examination of Water and Wastewater (APHA/AWWA/WEF)
    • US EPA Method 200.8 (ICP-MS metal analysis) and colorimetric procedure references
    • GMP/QC guidelines for reagent manufacturing (where supplied to regulated labs)

    Typical usage ratio

    • Typically 0.002–0.05% weight/volume in aqueous solution; precise ratio determined by assay protocol and required sensitivity; concentration specified per kit instructions.

    Downstream process integration

    • Diluted to ready-to-use concentrations; dispensed into kit bottles or ampoules; QC performed in production-line laboratories; integrated with color comparison standards.

    Final product types

    • Metal ion detection reagent kits for laboratories
    • Portable field water analysis systems
    • In-process monitoring kits for water treatment operations
    • Calibration standard solutions for spectrophotometric devices
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    Certification & Compliance
    More Introduction

    Flavianic Acid: Experience from the Production Floor

    Direct from the Manufacturer: Insights into Flavianic Acid

    Anyone working with chemical production knows that few compounds challenge both plant consistency and end-product performance the way Flavianic Acid does. We approach Flavianic Acid not just as a chemical on a spreadsheet, but as the result of years spent refining process controls, surface handling, and real-world application troubleshooting. Our lines do not just turn out product; they hold up in the toughest quality checks, batch after batch. With recent shifts in market demand and tightening purity needs, this acid stands out for more than its profile — it keeps solutions flowing across coatings, specialty syntheses, and pigments where others hesitate due to instability or variable feedstock.

    We manufacture Flavianic Acid Model 209A, tested batch-wise against our in-house specs: Color consistently bright lemon-yellow, melting at 147°C, moisture under 0.3%, and average assay above 99.1%. Our material moves through a proprietary crystallization step that prevents the shadowing often seen with hastier, large-batch syntheses. In daily practice, this reduced shadowing means customers see clearer dispersions, especially in aqueous and polar solvent systems. Our lab team built up years of data showing that a finely controlled oxidation sweep during the final synthesis cycle results in a finished product with better color clarity and shelf stability compared to older acid-wash variants common in the industry.

    Looking closer at how Flavianic Acid performs sets it apart from competitors. In coatings, a pure, well-crystallized form leads to less haze in finished films. Customers using our output for electronics-grade resins report lower rejection rates at both curing and aging stages, simply because side impurities are kept below visible thresholds. Many of our direct buyers previously worked through traders who could not trace the wellhead, much less guarantee how each ton left the reactor. Here, each batch receives an internal tracking number tied to reactor logs, chromatographic scans, and QC sign-off by hands-on technicians.

    Day to day, our operators face the intricate demands of Step IV in Flavianic Acid’s synthesis. Small temperature drops in this phase form red-tinted by-products, killing both spec and customer trust. Our in-line monitors do not just automate alarms; skilled workers constantly watch for signs of crystal agglomerate formation and fine-tune input rates. Instead of running production blind, we listen to the seasoned shift leaders — many with decades experience — who recall how hard-won every marginal gain has been over the years. This kind of know-how separates run-of-the-mill production from true manufacturing reliability.

    Specification sheets matter on paper, but anyone handling intermediate drums knows that practical signs―unusual dusting, caking, or odors on opening―signal real-life differences from batch to batch. Our model uses a low-adsorption liner in packaging, proven by months of shelf stability at both ambient and tropical shipping conditions. Uncoated sacks invite slow spoilage: by investing in multi-layered packaging that resists moisture ingress, we see returns not just in quality, but in the trust built with procurement managers shipping across continents.

    For downstream usage, manufacturers from dyes to pharmaceuticals turn to our Flavianic Acid. We have watched as one incorrect particle size spec has thrown entire downstream reactors off balance. After troubleshooting several customer complaints, we laser-focused on providing a 45–110 μm granular range as a default, allowing for both fast dissolution in solvent manufacture and controlled addition in multi-step syntheses. Fine-tuning granular consistency moved us from being a basic supplier to a technology partner, since one batch’s performance can make or break a campaign in high-volume operations.

    Flavianic Acid’s Place in the Industry

    Knowledge only comes after repeated pilot batches and on-the-job failures. We’ve seen batch reactors seize up because another supplier’s material ran heavy with unreacted feedstock. Plants running at scale appreciate details: our acid blends cleanly in standard mixers without settling or leaving fines behind, streamlining cleanup cycles. The compounding department avoids delays, and maintenance complaints drop once end users switch to a high-consistency acid supply.

    Large-scale pigment producers especially rely on predictable input. In a year with new environmental rules requiring closer control of heavy metal content in effluents, our acid arrives pre-tested for trace metal content under 15 ppm. We supply full upstream traceability, not a diluted middleman guarantee — and that keeps regulatory questions short and compliance paperwork simple.

    Competitors sometimes offer unbranded Flavianic Acid and cut price with reclaimed feedstocks. We avoid off-grade streams, knowing that unpredictable solvent residues wreak havoc in precision-lab environments. Cleaning up after those mistakes leads to downtime, lost product, and hard-to-trace incompatibilities. By sticking to single-source, audited supply chains for raw starting materials, we sidestep these pitfalls. Our staff regularly cross-checks incoming lots, flagging the slightest whiff of deviation. Steadfast controls make every shipment reliable to downstream analysts who stake their reputation on every analysis and every kilogram delivered.

    Innovation rarely lands with flashy product launches. Instead, it’s built up step by step, as our R&D team swapped out one catalyst for another, tracking how each tweak alters solubility, pH, and even end-user odor. A few years back, buyers in the photographic sector flagged sensitivity to breakdown products at low pH. Joint development programs tweaked our finishing step until the acid’s performance outpaced industry benchmarks. It took a series of pilot reactor trials, tweaking reflux timing and filtering depth. The result: a decreased yield of low-stability isomers and better ambient storage tolerance.

    Differences Worth Noting: Flavianic Acid Against Other Products

    Comparing Flavianic Acid to other aromatic acids on the market, two things jump out from hands-on use. First, our acid handles higher temperature swings in process equipment with less discoloration. This helps plants run longer campaigns without stopping for cumbersome tank cleanouts. Second, the by-product profile stays cleaner throughout the workflow. In batches where one expects a yellow-brown tinge from competitor acids, our product keeps tanks brighter, extending the window between downtime shut-ins for cleaning.

    Arguments for choosing Flavianic Acid over more generic analogs stack up quickly under production realities. In formulated inks and dyes, molecular impurities can cause off-step hues or fade in the end use. We track ultraviolet-visible absorption spectra on every production batch, supporting buyers needing reliable curves for regulatory submissions or accurate tint calculation. Our product absorbs at a tighter λmax range than lower-grade alternatives, speaking to tighter molecular weight controls throughout the process. Sales teams often note the difference from lab-tested numbers to real factory runs as the most compelling case for consistent specification, especially for international customers working across climate zones and logistics partners.

    The bottom line flows from daily reliability. The chemical industry sometimes turns on price, but after repeated product returns or long support calls, most end users shift focus back to consistent quality and transparent origin. We see fewer emergency calls with our acid than with past contract provisions. Repeat business comes not from deep discounts but from knowing what arrives matches the exact parameters written on the invoice—and that deviations are flagged before shipping, not discovered only after a run halts midstream.

    Application Realities: Meeting Real-World Needs

    Supplying a specialty chemical like Flavianic Acid means solving problems at both the lab bench and plant floor. Our clients include pigment dispersers who need seamless integration into existing lines. Some of our longest-running business relationships stem from time spent reviewing process flows on-site, not just pushing paperwork. For example, one European customer improved their batch yield by 6% after switching to our acid. The difference came down to improved solubility and reduced residue—something we were in position to advise on thanks to internal benchmarking and field visits.

    Process water compatibility often draws questions from technical buyers. Experience taught us that the acid’s reactivity can drive unexpected flocculation or tank fouling if low-purity inputs are used. Through years of troubleshooting, we landed on a finished product profile that resists cross-contamination in open processes and high-humidity sites. This practical knowledge comes directly from handling jammed pumps, cleaning filters, and adjusting dosing rates — situations not shown on technical data sheets but well-known to anyone who works with these systems daily.

    It’s rare that a month goes by without a custom inquiry about adapting Flavianic Acid to a novel use. Some customers in the electronics and imaging sectors explored blending or partial substitution, looking for cost savings without sacrificing final output integrity. We support R&D partnerships, welcoming customers to test production-scale lots in their own continuous reactors. Bringing the acid out of the lab and into the real world means tracking not just central analytical properties, but how the product suspends, dissolves, and interacts under production rates and stress. We keep spare drums for sampling and pride ourselves on live feedback cycles: tweaks in grind, mixer speed, or temperature response often lead to permanent plant-level improvements, both at our site and on the customer’s line.

    From Technical to Practical

    Resolving incompatibilities before shipment prevents night-shift calls. We once caught incompatible anti-caking agents in an acid shipment meant for Northern climates. Switching to a tested silica blend gave both us and the customer confidence through actual freeze-thaw cycles. These decisions are not made by remote corporate committees, but by technical leads who know shipping, field application, and raw product handling firsthand.

    On the regulatory side, we learned that staying clear of restricted substance lists can pivot entire supply agreements. Our acid formulation underwent external audit for REACH and RoHS compliance due to customer expansion into the EU market. Each step, from feedstock choice to packaging glue, got reviewed—recorded not just in certificates but in how supplies get logged, checked, and traced. These exercises turned into lasting process improvements and gave procurement officers confidence during tight-scrutiny periods like annual audit cycles. Through open book compliance and active engagement, we move from being just a supplier to a trusted technical partner, ready to back up every certificate with logs and real-world support.

    Quality Over Hype

    Factory-floor reality beats out marketing more often than not. Our reputation relies on each drum meeting agreed specs every time. We welcome customer audits and routinely invite technical partners to see production first-hand — a practice that uncovers improvement areas, reinforces commitment, and builds the trust missed by hands-off, distributorship chains. Delivering a robust product like Flavianic Acid means continuous investment in training operators, upgrading sensors, and competing with our own benchmarks.

    We do not chase every trendy certification, but focus on proven, customer-valuable benchmarks: batch-to-batch stability, low impurity spectra, and ease of handling. Our field technical support team relays reports from customer sites directly to improvement projects inside our plant. This bridge from user to producer allows us to anticipate shifts, fix problems early, and keep each lot living up to what real operations require. As more buyers seek traceable, reliable inputs rather than simply the cheapest option, our standards define our value better than any generic sales pitch ever could.

    Importance of Direct Experience

    Manufacturing Flavianic Acid for decades produces more than just product; it builds insight. By testing, refining, and listening to feedback over years, we align both our plant and our standards to what end-users—on shop floors or in R&D—truly value. Our operators recognize familiar patterns in reactor sound, unexpected color shifts, or evaporation behavior. They translate the daily grind into an acid batch you can trust from delivery to final application. That experience never appears as a line item on purchase orders, but every production batch reflects the learning baked into each step along the way.

    By delivering Flavianic Acid grounded in consistency, traceability, and hands-on knowledge, we set a mark among specialists who value substance over spin. Unlike middlemen traders or spreadsheet-resellers, our commitment lives in open process logs, on-site visits, and the direct problem-solving that keeps production humming, lot after lot. This approach anchors our product’s reputation across markets where reliability, not just price, determines long-term partnerships and project success.