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Visnagin

    • Product Name Visnagin
    • Alias Khellin
    • Einecs 207-536-6
    • 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
    VTB
    Specifications

    HS Code

    809579

    Name Visnagin
    Cas Number 523-50-2
    Molecular Formula C12H10O4
    Molecular Weight 218.21
    Appearance white crystalline powder
    Solubility Soluble in ethanol and ether, slightly soluble in water
    Melting Point 144-146°C
    Pubchem Cid 5281405
    Source Natural product found in Ammi visnaga (plant)
    Chemical Class Furanocoumarin derivative
    Iupac Name 4-methoxy-7-methyl-5H-furo[3,2-g]chromen-5-one
    Storage Conditions Store in a cool, dry place
    Usage Pharmaceutical intermediate and research chemical
    Synonyms Khellinone, 4-Methoxy-7-methylpsoralen

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

    Packing & Storage
    Packing Visnagin is packaged in a sealed amber glass bottle, labeled "Visnagin, 25g, For Laboratory Use Only," with safety instructions.
    Shipping Visnagin is shipped in tightly sealed, chemical-resistant containers to protect it from moisture and light. It should be transported as a non-hazardous organic compound, following standard safety regulations. Proper labeling, cushioning, and documentation are provided to ensure safe delivery while preventing contamination or degradation during transit.
    Storage Visnagin should be stored in a tightly closed container, protected from light, moisture, and air. Keep it in a cool, dry, and well-ventilated area, away from sources of heat and incompatible substances such as strong oxidizing agents. Store at room temperature and ensure proper labeling. Follow safety guidelines and legal requirements for chemical storage.
    Application of Visnagin

    Applications of Visnagin in Industrial Manufacturing

    Visnagin serves specialized roles in several regulated industrial fields where its well-defined chemical properties support precise production needs. Our facility supplies visnagin with consistent quality, allowing downstream users to integrate this compound into their validated processes for reliable, compliant manufacturing outcomes.

    1. Pharmaceutical Intermediate for Cardiovascular Drug Synthesis

    Pharmaceutical manufacturers use visnagin as a key intermediate for synthesizing cromakalim and related potassium channel openers for cardiovascular therapies. Production requires rigorous quality tracking from raw material handling through to reactive inclusion in multi-step organic syntheses. In this process, visnagin enters during heterocyclic ring formation and subsequent derivatization for the final active pharmaceutical ingredient (API). The purity grade, traceability documentation, and contaminant profile must support international drug registration and batch release standards.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practices for Active Pharmaceutical Ingredients
    • USP-NF or Ph. Eur. Monographs for relevant APIs
    • Regulatory documentation for DMF (Drug Master File) filings
    • 21 CFR Part 211 cGMP compliance

    Typical usage ratio

    • Batch formulations: 0.5–2.5 mol equivalents per target molecule synthesis step
    • Ratio depends on target yield and downstream functional group transformation
    • Impurity profile managed via in-process controls

    Downstream process integration

    • Incorporated during the condensation and alkylation stages of API synthesis
    • Purified by crystallization or column chromatography before next reaction
    • Material identification via validated HPLC and MS analysis

    Final product types

    • Cromakalim (vasodilator)
    • Potassium channel-modulating drug substances
    • Related investigational cardiovascular compounds

    2. Standardized Botanical Extracts for Nutraceutical Formulations

    Producers of botanical dietary supplements utilize visnagin-rich extracts from Ammi visnaga fruits, blending controlled-purity isolates to achieve consistent dosages in finished nutraceuticals. Processing includes precise ratio blending, solvent extraction, and standardization to specified visnagin content, with testing to verify compliance against established food safety and labeling rules. Downstream, visnagin acts as a marker compound for product quality and traceability in supplement batch records.

    Industry compliance standards

    • US FDA 21 CFR Part 111 (Dietary Supplement GMP)
    • EFSA guidance on botanical preparations
    • USP Herbal Medicines Compendium for content uniformity
    • ISO 22000 food safety management system

    Typical usage ratio

    • Standardized extract containing 0.5–2% visnagin by mass, adjusted according to label requirements
    • Final supplement formulations: 5–20 mg visnagin equivalent per daily dose, based on clinical data and regulatory guidance

    Downstream process integration

    • Blending with other botanical extracts to standardize visnagin dose
    • Inclusion during wet granulation or direct compression for tablets/capsules
    • QC by HPLC fingerprinting to confirm visnagin content

    Final product types

    • Ammi visnaga standardized capsules and tablets
    • Herbal blends for urinary tract health
    • Botanical complex softgels

    3. Analytical Reference Standards for Quality Control Laboratories

    Chemical analysis service providers and regulated laboratories require purified visnagin as a certified reference material for method calibration and product testing. The compound enters workflows for chromatographic assay validation, system suitability tests, and purity profiling of botanical or pharmaceutical products. Users require full COA and traceability to production lots for ISO/GLP/Pharmacopoeial audits, making consistent synthesis and quality documentation mandatory for each shipped batch.

    Industry compliance standards

    • ISO 17034: Production and characterization of reference materials
    • ISO/IEC 17025: Laboratory testing and calibration
    • USP & Ph. Eur. requirements for reference standards
    • GLP (OECD and FDA) documentation traceability

    Typical usage ratio

    • Reference standard preparations: 1–10 mg per calibration series
    • Concentration range for typical HPLC or LC-MS analysis: 0.5–50 μg/mL
    • Aliquots determined by instrument sensitivity and target matrix

    Downstream process integration

    • Diluted into calibration curves for identification/quantification of visnagin in samples
    • Quality control for herbal supplement and pharmaceutical lots
    • Validated storage and stability monitored on site

    Final product types

    • Certified visnagin reference standard vials
    • Accredited proficiency testing sets
    • In-house analytical control samples

    4. Chemical Research Reagents for Academic and R&D Institutions

    Academic and industrial research organizations order visnagin as a reagent for organic and medicinal chemistry studies. Research applications emphasize small-scale synthesis, structure-activity relationship investigations, and photochemical reaction testing. Each lot receives analytical verification and batch data package, supporting reproducible experimental conditions and accurate reporting in peer-reviewed research and patenting processes.

    Industry compliance standards

    • ISO 9001-certified production documentation for chemical reagents
    • Safety Data Sheet (SDS) in compliance with GHS/REACH
    • Institutional laboratory safety and storage rules

    Typical usage ratio

    • Micro-scale synthesis: 5–100 mg per experiment
    • Preparative reactions: 0.1–2 g batch size according to protocol
    • Stoichiometry adjusted for model pathway exploration

    Downstream process integration

    • Dissolved in common organic solvents for screening reactions
    • Monitored for progression by TLC and spectroscopic techniques
    • Processed post-reaction for product isolation and analytical characterization

    Final product types

    • Research-grade intermediates for structure elucidation
    • Model compounds in photoreactivity or enzyme assay studies
    • Proprietary derivatives for patent subject matter
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    Certification & Compliance
    More Introduction

    Visnagin: Precision from the Factory Floor

    Understanding Visnagin as a Specialty Chemical

    Producing Visnagin year after year involves hard-earned expertise. Our team oversees every stage, from selection of raw materials to final packaging. The end result is a white to pale yellow crystalline powder, known chemically as 4-methoxy-7-methyl-5H-furo[3,2-g][1]benzopyran-5-one. We craft Visnagin to serve pharmaceutical researchers, lab professionals, and innovators in several specialty fields. Its main calling card lies in the subtle furochromone core, which enables nuanced applications far beyond what common commodity chemicals allow. Real-world feedback tells us the suitable melting point range, consistent particle size, and careful exclusion of adulterants make our batches stand apart.

    Some colleagues in the industry try to approach Visnagin synthesis with shortcuts or non-optimized routes. Over time, those choices show up in unpredictable assay values, erratic yields, or contamination that puts research programs at risk. Our engineers focus on keeping impurity content below industry benchmarks, using high-grade solvents and in-line monitoring to lock in the needed purity. After over a decade of production at scale, we recognize that analytical data—HPLC traces, NMR spectra, full mass spectrometry panels—must back up every shipment.

    Meeting the Needs of Pharmaceutical and Research Clients

    End users rely on Visnagin’s performance in bioactivity studies and as a precursor for novel drug candidate synthesis. We listen closely to feedback from researchers working on cardiovascular, nephroprotective, and anti-inflammatory chemistry. They find that substitution patterns on the furochromone scaffold of Visnagin matter for binding assays; even minor batch-to-batch fluctuations can derail results. To avoid this, we maintain a single synthesis line solely dedicated to Visnagin, so residual cross-contaminants from other coumarin derivatives or unrelated small molecules do not appear in the final product.

    Pharmaceutical partners appreciate transparency. Every production run comes with chromatographic and spectroscopic profiles. In our in-house labs, techniques like FTIR and UV-vis make it possible to confirm the molecular backbone and exclude unreacted starting material. Lot records include assay values, moisture analyses (using Karl Fischer titration), and trace element panels for heavy metals, supporting researchers who develop safety dossiers and regulatory filings.

    Why Purity Means Everything with Visnagin

    Over the past five years, demand for high-purity plant-derived molecules has soared. Yet, many Visnagin samples on the market show multi-percent byproduct content or ambiguous identity markers. Comparing side-by-side, batches from less controlled sources often contain isomeric impurities or excessive solvent residues. Our team runs additional purification cycles—sometimes more than twice the number seen in typical facilities. That decision does not come from guesswork. We adapt process controls and invest in custom column chromatography setups. This reduces levels of 4,5-dihydroxybenzoic acid, isopimpinellin, and other common synthesis byproducts below 0.2%, meeting even the strictest R&D team requirements.

    Some specialty suppliers try to compete on price alone, but skipping finishing steps risks introducing reactive aldehydes and chlorinated compounds. In lab testing, these show up as spurious peaks, causing confusion or failed toxicity panels. Our experience with stability studies shows that minor contamination can also degrade Visnagin during storage, leading to yellowing, a sticky residue, or off-odors. Tracking these outcomes over many production cycles creates a clear picture: running a clean operation and limiting batch sizes allows for fresher, more stable powders.

    Visnagin’s Place Among Furochromones

    Chemically, Visnagin sits in a family with khellin, ammiol, and khellol glycosides. Many labs try to use close analogs for cost reasons, but we have seen that biological assays are sensitive to small scaffold modifications. Visnagin, with its methoxy and methyl groups in precise positions, interacts differently with enzyme targets than khellin or xanthotoxin. This matters when screening new pharmaceutical lead compounds or validating in vitro metabolism models. Studies published over the past decade validate these differences, showing that only high-quality Visnagin reproduces known effects in smooth muscle relaxation and enzyme inhibition.

    Some resellers sell “furochromone mix” products with unclear labeling. Experienced researchers told us about failed replication attempts after switching from our exact Visnagin to generic blends. Test panels show that side-products from unrefined sources act as confounders, skewing the pharmacology and complicating analytical profiles. As the original manufacturer, we account for isomerism and run targeted synthesis steps to avoid the mixture trap. Exacting work in the synthesis yields a single furochromone, not a basket with poorly isolated analogs.

    Process Improvements from Decades of Production

    Running a chemical facility where Visnagin is made has taught our technical staff many lessons about process control and scale-up. Over time, we moved away from batch operations using basic glassware to semi-automated reactors, with more precise temperature, pH, and agitation controls. These improvements let us trace and optimize yields while reducing the risk of side-reactions or material loss. Using automated liquid chromatography and high-throughput screening, our analysts spot minor contaminants before they move downstream.

    We learned early that a single variable—such as the grade of starting monohydroxy coumarin, or a shift in reaction solvent—can cause cascading effects during furochromone closure steps. Tracking these variables through digital systems means less guesswork and more reproducibility. Stability assays run at 25°C and 40°C in real-time and accelerated models show a clear link between storage, packaging, and shelf life. As original manufacturers, we keep direct oversight over every physical stage, instead of relying on outsourced processors with unknown practices.

    Real-World Handling Experience

    Researchers and formulators bring us questions about how to store or use large batches. Over many years, we learned that Visnagin’s tendency to absorb moisture—if left in open containers—demands careful packaging. All of our lots are sealed under nitrogen, packed in thick-walled HDPE or amber glass, and shipped with moisture-indicating cards for the most sensitive projects. Our hands-on trials confirm that even short air exposure can degrade sample purity; original containers with minimal headspace prevent hydrolysis or breakdown. Clients working at the bench or in process-scale synthesis receive practical guidance, not off-the-shelf recommendations. We recommend storing Visnagin below 25°C, away from sunlight and humidity, based on what years of stored samples show.

    Some industry peers ignore long-term stability. We run regular retention sample checks, and staff revisit stock from earlier years to catch any issues. If a problem emerges—a rare thing for stabilized batches—we trace it back through batch records and adjust process parameters. That open-loop feedback saves researchers from mysterious failures or repeat orders. It also lets us refine purification steps as science advances.

    Working with End Users to Solve Problems

    Our customers are not anonymous account numbers—they are real chemists and biologists working with demanding timelines and limited budgets. When someone calls with a question about a reaction test or unexplained assay result, we can trace raw material sources, batch dates, and even solvent lots. This level of support allows users to focus on their science, rather than worry about inconsistencies in materials. Over the years, this shared problem-solving has uncovered new applications. One collaborative project used Visnagin as a starting scaffold in photoreactive probe design; another team leveraged its structure to develop kinase inhibitors. We credit these advances to close feedback—something only possible with direct manufacturing relationships.

    Manufacturing Visnagin also means helping teams scale from milligram lots to multi-kilo synthesis runs. Our staff advise on solvents, temperature profiles, and safe handling for larger preparations. For scale-up groups, we recommend in-process monitoring to check for side-product formation, based on HPLC guidance from our own analytical chemists. The collective experience of many production cycles becomes a real asset for customers who operate at the interface of research and pre-commercial drug development.

    Environmental Responsibility on the Factory Floor

    Every batch of Visnagin has an environmental footprint—no process exists in a vacuum. Over the last decade, we redesigned our synthesis and work-up steps to reduce solvent use and recover more intermediates. Engineers track energy consumption per kilogram of isolated product, adjusting reactor conditions for better yields and less waste. Through solvent recycling and responsible water treatment, our facility operates with lower emissions than older peer plants.

    Disposing of reaction byproducts in line with environmental regulations requires daily vigilance. We walk the shop floor and check that all team members understand the importance of safe handling and labeling. Instead of viewing environmental compliance as a burden, the plant’s daily routine treats it as a long-term investment in reliability and community trust. Participating in green chemistry initiatives and local industry consortia gives us a window into new safer solvent options and upstream process tweaks. Changes in environmental law prompt us to redesign problematic steps before they trip up the production schedule or force costly retrofits. We keep up because our goal is to keep supplying researchers without interruption, not to fight a rear-guard action against inevitable policy shifts.

    Visnagin’s Regulatory and Documentation Edge

    A manufacturer has to stand behind product documentation. For Visnagin, our compliance files cover SCIP and REACH status in Europe, per-item safety data, and traceability logs from initial synthesis through final packing. Auditors visiting our plant see full record-keeping—not just certificates stapled to invoices. With regulators asking tougher questions about trace contaminants and change control, we stay ahead by aligning with published scientific standards and working directly with national reference labs. Our label claims and documentation reflect real, validated production—not marketing hyperbole. As agencies update their lists of restricted substances, we make sure pre-registration, reporting, and notification happen ahead of deadlines.

    Teams managing clinical candidates appreciate that follow-up documentation arrives quickly when renewal filing cycles or customs clearance asks for batch data. Regulatory teams trust that our claimed molecular weight, assay, and impurity limits stay in agreement with certificate values over the product’s life cycle. We view this as part of our duty of care—not just to clients, but to the credibility of scientific work that depends on our products.

    Why Direct Manufacturing Oversight Still Matters

    Over the past twenty years, consolidation and outsourcing swept through the chemical supply business. As original manufacturers, we see the end results firsthand—lost batch records, substitutions that no one catches, and complicated recall procedures when lots change hands too many times. Keeping direct control at every stage lets us avoid these traps. We can redesign a batch, pull retention samples, or provide detailed batch history without months of follow-up.

    Clients routinely mention that materials from resellers lack traceability and fail to deliver on analytical consistency. Our staff care about more than just order volume. From synthetic route optimization to batch-by-batch QR code tagging, we adapt best practices as industry and regulation evolve. Reliability grows out of this full-circle oversight, not out of a web of paperwork and fragmented supply chains.

    Making Visnagin for the Next Decade

    The research community keeps finding new uses for Visnagin, from plant-based probes to selective enzyme inhibitors and more. Our technical group monitors scientific trends, preparing to tweak the synthesis route for promising analogs or next-generation delivery forms. Years of direct batch experience means we can scale up new variants faster and support custom research campaigns with real experimental knowledge— not just catalog entries.

    We balance innovation with hard-won process safety and regulatory compliance. Every experiment in synthetic revision runs through pilot scale before joining regular production. Collaborations with university labs and new drug discovery ventures give a steady stream of feedback, so when published science introduces a new application, we can respond by updating our process or refining documentation in days, not months.

    Making Visnagin is more than technical work—it’s a long-standing partnership with researchers, industry teams, and public health bodies. By keeping production entirely in-house, maintaining transparency, and listening to direct user experience, we deliver a product that meets scientific needs and regulatory goals. As demand for reliable specialty chemicals grows, so does our commitment to trusted, benchmark-quality Visnagin.