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9-Fluorenol

    • Product Name 9-Fluorenol
    • Alias Fluoren-9-ol
    • Einecs 208-274-1
    • 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
    VTB
    Specifications

    HS Code

    442339

    Cas Number 1689-64-1
    Molecular Formula C13H10O
    Molecular Weight 182.22 g/mol
    Appearance White to off-white crystalline powder
    Melting Point 153-155 °C
    Boiling Point 232 °C at 4 mmHg
    Density 1.21 g/cm3
    Solubility In Water Insoluble
    Purity Typically >98%
    Smiles OC1c2ccccc2C2=CC=CC=C12

    As an accredited 9-Fluorenol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 9-Fluorenol, 25g, is packaged in a tightly sealed amber glass bottle with a printed hazard label and product information.
    Shipping 9-Fluorenol is typically shipped in sealed, chemical-resistant containers to prevent moisture and air exposure. It should be transported in compliance with local and international regulations, including labeling for potential irritants. Standard shipping includes cushioning to avoid breakage and clear documentation for laboratory or industrial use only. Store at room temperature upon receipt.
    Storage 9-Fluorenol should be stored in a tightly closed container in a cool, dry, and well-ventilated area, away from sources of ignition and incompatible substances such as strong oxidizers. Protect the chemical from light and moisture. Proper labeling and secure placement are important to prevent accidental exposure. Always follow standard laboratory chemical storage guidelines and local regulations.
    Application of 9-Fluorenol

    Applications of 9-Fluorenol in Industrial Manufacturing

    9-Fluorenol serves as a critical intermediate in several specialized industrial sectors. Its unique molecular structure allows for selective functionalization, making it essential in the synthesis of high-value chemicals. Below, we present core application scenarios, including specific standards, formulation practices, production steps, and final manufactured products that incorporate 9-Fluorenol.

    1. Pharmaceutical Intermediate Synthesis

    Manufacturers leverage this raw material during the preparation of active pharmaceutical ingredient (API) intermediates, especially for products demanding complex aromatic alcohol cores. 9-Fluorenol introduces stereo- and regioselective control in synthetic pathways, which supports the assembly of specialty APIs with stringent purity specifications required for finished medicines.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • US FDA 21 CFR Part 210/211
    • EU GMP EudraLex Volume 4
    • Chinese Pharmacopeia (ChP) standards

    Typical usage ratio

    • Normally 0.5% – 5% w/w in stepwise multidose API syntheses; manufacturers vary dosage based on targeted molar stoichiometry and impurity profile control in intermediate production

    Downstream process integration

    • Charged at condensation or reduction reaction stages, often in batch reactors under controlled temperature and inert atmosphere to maintain alcohol purity; followed by crystallization and solvent removal steps

    Final product types

    • Anti-cancer drug intermediates
    • CNS-active molecule precursors
    • Chiral building blocks for custom APIs

    2. Fine Chemical Synthesis for Fluorescent Dyes

    In dye manufacturing, process engineers use this compound as a starting material for assembling polycyclic aromatic structures found in optical and fluorescent dyes. The alcohol function allows site-selective modification, facilitating downstream coupling and ring-closure reactions essential for pigment and dye molecule formation deployed in security inks and analytical reagents.

    Industry compliance standards

    • REACH (EC No 1907/2006) substance registration
    • EN 71-3:2019 for safety of toys (colorant migration limits)
    • ISO 9001-certified production for process controls
    • US EPA TSCA for regulated chemical intermediates

    Typical usage ratio

    • From 2% up to 15% by initial charge, dictated by the target chromophore required and mole ratios in Suzuki, Heck, or Friedel–Crafts couplings

    Downstream process integration

    • Inserted after initial aromatic substrate activation, proceeding through alkylation or Friedel–Crafts acylation before functionalization to introduce protected or unprotected alcohol groups

    Final product types

    • Security anti-counterfeit fluorescent dyes
    • Lab analytical staining reagents
    • UV marker inks for industrial packaging

    3. Agrochemical Research Chemical Manufacturing

    Agrochemical developers utilize this chemical within pilot and commercial runs to create structural motifs for specialized fungible crop protection compounds. Its integration allows for the precise introduction of bulky aromatic features and hydroxy functionalities, which improve environmental stability and target selectivity in key agrochemical active ingredients.

    Industry compliance standards

    • FAO/WHO JMPR specifications for technical material purity
    • ISO 17025 analytical validation for residue studies
    • OECD Good Laboratory Practice (GLP) for toxicological profiling
    • US EPA guidelines for pesticide manufacturing ingredients

    Typical usage ratio

    • Ranging 1%–8% w/w depending on agrochemical candidate and environmental breakdown targets; process engineers adjust based on lab-scale degradation data and pilot-scale synthetic yields

    Downstream process integration

    • Employed during early-stage core assembly, often as a limiting reagent in Grignard or palladium-catalyzed reactions where selectivity for aromatic hydroxylation leads to product differentiation

    Final product types

    • Experimental fungicide intermediates
    • Herbicide compound scaffolds
    • Soil conditioning agent prototypes

    4. Polymer Additive for High-Performance Materials

    This compound appears in specialty polymer production, especially where rigid structural units enhance thermal or photostability for engineering plastics and advanced coatings. The hydroxy functionality of 9-Fluorenol supports nucleation or crosslinking during the polymerization, imparting mechanical strength and resistance to environmental degradation for demanding industrial uses.

    Industry compliance standards

    • RoHS Directive 2011/65/EU for restricted substances in polymer materials
    • UL 746C for polymer additives and recognition
    • ISO 11357-1 for DSC analysis (thermal analysis standards)
    • ASTM D638 for polymers’ mechanical property testing

    Typical usage ratio

    • 0.1%–2% w/w as nucleating or crosslinking additive; final level depends on desired Tg elevation or UV stability levels in finished polymer matrix

    Downstream process integration

    • Fed as a solid or solution during polymer melt blending, or introduced in copolymerization feed during batch or continuous reactor runs, enabling uniform dispersion before molding or extrusion

    Final product types

    • High-gloss polyimide films
    • Engineering-grade thermoplastic resins
    • Protective UV-resistant coatings

    5. Organic Semiconductor Precursor Manufacturing

    Component manufacturers select this material when crafting high-mobility organic semiconductors for optoelectronic devices. The aromatic backbone and terminal alcohol structure contribute to enhanced molecular stacking and controlled functionalization, facilitating efficient charge transport and tailored absorption in high-purity organic electronic compounds.

    Industry compliance standards

    • IEC 62607 for inorganic and organic electronic materials
    • JEITA EM3504 standards for organic semiconductor materials
    • ISO 14644-1 for cleanroom manufacturing
    • RoHS and REACH restricted substance compliance in electronics

    Typical usage ratio

    • Typically 0.5%–3% of total organic content, adjusted to balance solubility and target electronic properties in precursor solution formulations

    Downstream process integration

    • Blend into reaction mixture during precursor synthesis; purified by distillation or recrystallization prior to final solution casting or monomer polymerization for thin-film fabrication processes

    Final product types

    • Organic light-emitting diode (OLED) emitter materials
    • Thin-film transistor (TFT) semiconductor layers
    • Organic photovoltaic (OPV) active layer compounds
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    Certification & Compliance
    More Introduction

    Introducing 9-Fluorenol: From Bench to Industry

    The Pathways of 9-Fluorenol Synthesis

    In our years running a chemical plant, certain specialty chemicals keep proving their value across different sectors. Among these, 9-Fluorenol stands out. We have refined the process for synthesizing 9-Fluorenol so it meets strict purity requirements that researchers and industrial chemists depend on. This alcohol derivative of fluorene sits at a useful intersection in organic chemistry. By controlling each stage — from raw materials to finished product — we ensure consistent performance in every batch.

    Our experience tells us that not all products labeled as 9-Fluorenol are the same. Quite a few suppliers today reuse technical-grade intermediates or resell low-purity batches, causing headaches down the line. We’ve heard stories from laboratories who discovered impurities only after losing valuable synthetic time. As actual manufacturers, we take responsibility for every detail. This means quality checks using high-performance liquid chromatography and regular hands-on evaluations. We listen to partners who need high-purity material. Our 9-Fluorenol has a typical purity of over 99%, with water and heavy-metal residues tested below accepted thresholds.

    What Sets Our 9-Fluorenol Apart?

    Any chemist can see subtle differences in material from various sources. By making 9-Fluorenol on site, we can control the crystal morphology, particle size, and avoid contamination from process equipment. Without these controls, users can end up with unexpected side-reactions or product degradation. Some third-party resellers cut costs by blending batches or storing material in unsuitable conditions, causing discoloration or clumping over time. Over the years, we found that customers report stronger performance from lots with our strict batch records. Each time we scale production, extensive pilot testing uncovers small improvements, from filtration methods to packaging that prevents atmospheric moisture absorption.

    Our 9-Fluorenol model usually comes as fine white to off-white crystalline powder. Depending on the scale of your project, we offer both laboratory and industrial batch sizes. Our larger lots are popular among pharmaceutical synthesis teams aiming for efficiency in multi-step schemes. In small R&D setups, our material supports selective oxidation and reduction reactions, making it a useful intermediate. Researchers have also highlighted the easy handling and consistent melting point of our material, which supports repeatable downstream reactions.

    Industrial Use Cases: Why Purity Matters

    9-Fluorenol plays several roles — as a building block in advanced materials, an intermediate in active pharmaceutical ingredient synthesis, and a precursor for dye and polymer applications. Over years of partnership with production teams, we have seen small impurities snowball into project delays or regulatory issues. In pharmaceutical pathways, for example, contamination from even trace polycyclic aromatic hydrocarbons can lead to regulatory scrutiny. We run comprehensive impurity profiling, which makes scale-up to active ingredient manufacture straightforward downstream.

    Solubility is another differentiator. By controlling the drying process and avoiding the use of aggressive solvents, our product dissolves smoothly in organic phases. Some buyers reported premature precipitation or filter blockages from other supplies; attention to these details saves real operational costs for our clients. Packaging choices come from firsthand experience: glass-lined drums for bulk, amber glass bottles for sensitive research, double-laminated barriers where high humidity threatens stability. These options didn’t come from guesswork — they grew out of decades of troubleshooting and collaboration.

    Supporting Pharmaceutical and Material Science Teams

    For pharmaceutical research, nobody wants accidental byproducts that force an entire requalification cycle. Regulatory approval often hinges on the data integrity from raw material up, and we design records and traceability around these real-world needs. We know that with regulatory inspections, every batch label and test result faces scrutiny. This attention grants a layer of safety for downstream work.

    In the realm of material science, 9-Fluorenol frequently emerges as a precursor for fluorescent materials and specialty polymers. Some customers spend months synthesizing derivatives or experimenting on small scales to tweak emissions or blending behaviors. Consistency in feedstock shortens these cycles. Producers working on optoelectronic materials appreciate the reliable reactivity and controlled impurity profile of our product, which impacts photophysical properties.

    9-Fluorenol vs. Other Fluorene Derivatives

    Comparing 9-Fluorenol to other fluorene derivatives shows why users often prefer it for certain pathways. 9-Fluorenone, for example, has one more degree of oxidation but behaves quite differently in reduction and coupling reactions. Our feedback from the field shows that when selectivity matters — such as in formation of chiral centers or site-specific functionalization — starting from the alcohol grants more options. Some choose 9-Fluorenol to avoid hazardous reduction agents, as the group placement allows milder conditions or tailored protecting group strategies.

    In contrast, 9-Fluorenylmethanol, another related compound, often finds roles as a protecting group in peptide synthesis. Its application limits it to more specialized chemistries and less to the broader range seen for 9-Fluorenol. Our experience shows steady demand in advanced organic synthesis, as chemists tend toward the balance of stability and reactivity inherent in 9-Fluorenol. By creating a fine balance between shelf life, reactivity, and workability, we target real-world applications, not abstract categories.

    How Our Manufacturing Know-How Shapes Product Quality

    Everything starts from know-how. Sourcing the starting fluorene from trusted partners avoids introduction of persistent background odors or colored contaminants. We carry out initial hydrogenation under carefully monitored pressures and temperatures — the result: selectivity toward the alcohol and better overall efficiency. Our purification steps avoid halogenated solvents where possible, both for environmental and product-stability reasons. It’s easy to overlook these process details; they wind up making all the difference after months in storage or in the results chemists obtain at the bench.

    As batches scale, we discover new challenges. Thermal control in larger reaction vessels can introduce local hotspots. This sometimes produces unwanted side products, so we monitor temperatures directly using in-situ probes. Operators receive hands-on training to recognize subtle signs of incomplete reactions or crystallization anomalies. No automated system replaces the seasoned eye of someone who has handled the product for years.

    Packaging and Transportation: Lessons from the Road

    Handling specialty chemicals isn’t just about what happens inside the factory gates. Once, after a warm, humid summer, several overseas shipments reported clumping and yellowing. Our team investigated and learned that minor seals on common polyethylene liners were transmitting moisture. We switched to higher-barrier formats, then spent several months validating long-haul shipment stability. Our customers noticed better performance right away, and we eliminated costly product returns.

    Customs and regulatory paperwork can slow logistics for specialized chemicals. We keep full documentation compliant with regional chemical control laws, including REACH registration and GHS labeling. Shipping staff know the ins and outs of hazard classes, so products arrive ready for use with no added compliance surprises.

    Real-World Impact: Partnerships and Problem-Solving

    Over years collaborating with research and process chemistry teams, we have seen how seemingly small issues can create massive delays or lost investment. Just last year, an R&D team needed kilogram lots of high-purity 9-Fluorenol for a preclinical program. Their pilot source delivered inconsistent material with yellow tint and unusual melting points. Our technical team reviewed their process needs, matched their solubility targets, and produced a tailored batch. They were able to restart the project, shaving weeks off their timeline.

    Problem-solving happens continuously. Incoming batches get reviewed both by instrumentation and hands-on inspection. If a customer hits a surprise, our analytical staff tracks impurity origins, compares retained samples, and recommends adjustments to purification or storage. Unlike a hands-off distributor, we’re present for long-term relationships, offering minor production tweaks for major customer benefit.

    Reducing Environmental Impact and Improving Worker Safety

    Producing specialty chemicals safely requires a commitment to environmental responsibility and team wellbeing. We replaced legacy solvent systems with less hazardous alternatives where feasible. Our plant uses closed transfer systems for all volatile components, limiting employee exposure. We run regular air monitoring and update training to keep everybody sharp on safe practices. Waste treatment includes in-house solvent recycling and qualified third-party disposal for any hazardous residues.

    Customers growing more conscious of sustainability rely on our approach. By minimizing overall solvent use and reducing emissions, we meet both internal and market expectations. We already see regulators in multiple regions tightening restrictions, so every efficiency counts both upstream and downstream.

    Supporting Academic and Contract Research

    Academic research often requires consistent material supply on small scales. Universities and contract research organizations sometimes struggle to find reliable sources within tight project windows and budget constraints. By keeping inventory in multiple pack sizes and rotating stock, we support their programs year-round. One academic group used our 9-Fluorenol to study new photophysical processes in organic light-emitting diodes. Consistency in batches let them compare experimental runs directly, earning clear and reproducible results for journal publication.

    CROs working under tight IP controls appreciate direct supply from source. Every batch leaves our facility with full documentation and trace-level impurity testing, giving sponsors and auditors a high-confidence trail. We review feedback from these contract setups, adapting batch sizes and pack types for practical, on-demand delivery.

    Responding to Market Trends and Future Applications

    As new applications for polycyclic building blocks evolve, we keep an eye on trends in advanced materials and pharmaceuticals. Recent years brought a rise in demand for OLED intermediates, and we adjusted our process accordingly for better scalability. As battery technology advances, research groups look to modified fluorene derivatives for emerging electrolytes and active materials. We allocate time in our pilot line to qualifying new technical requirements, validating impurity needs, and scaling for sudden market surges.

    Feedback cycles matter. Some application developers request tighter controls around trace metals, so we configured additional purification runs and expanded analytical portfolios. Others focus on sustainable sourcing of raw materials, so we invest in audits and upstream process improvements. These efforts stem from over two decades of customer-driven problem-solving, not generic marketing claims.

    Building Trust Through Evidence and Transparency

    Every claim we make about our 9-Fluorenol ties back to documented results and collected experience. We invite technical partners to audit our process and review real time production records. Over the years, we learned transparency makes stronger partnerships and fewer mistakes. Analytical results, batch records, and stability data are all available to customers upon request.

    This model builds real trust: customers receive not just product, but also a team ready to explain the logic behind each quality standard or packaging change. Stories from our plant floor circulate among our long-term partners — from small discoveries that improved process reliability, to larger lessons learned after collaborative troubleshooting.

    Why Direct Manufacturing Matters

    The proliferation of ‘third-party’ vendors selling chemical supplies let pricing become a race to the bottom, often at the expense of traceability and quality. We take a different tack, maintaining full process control from order to delivery. Chemists using our 9-Fluorenol report fewer surprises with reactivity, color stability, or post-synthesis handling. This reliability keeps vital projects on track and reduces overall risk for teams working under tight schedules.

    We respond promptly to technical questions because our engineers work side-by-side with production and quality teams. If a customer needs documentation to pass regulatory review, or finds an outlier in an NMR spectrum, support comes from the people who actually run the reactors and test the product. This isn’t just theory; it’s practice shaped by years in the field.

    Continuous Improvement: What We’ve Learned and What’s Next

    Manufacturing specialty chemicals shares a core lesson—never assume the process works perfectly just because it worked yesterday. Raw material profiles shift, environmental controls need adjustment, and new uses raise new requirements. By documenting each run and aggregating customer results, we spot trends before they become headaches, making small corrective steps part of daily work.

    We dedicate part of every year to process audits, method validations, and production-scale trials. If a customer starts seeing new demands from regulatory agencies or downstream partners, we address those through both paperwork and chemistry. Our culture supports cross-checks and feedback loops, ensuring the product reflects not only our experience, but also what real users need.

    Conclusion: Real Relationships, Real Results

    Producing 9-Fluorenol at industrial scale means taking responsibility — from each molecule’s synthesis to the partnership behind every order. Supporting researchers, manufacturers, and regulatory teams with reliable, high-purity material keeps projects moving and innovation advancing. Steady improvement, technical responsiveness, and an on-the-ground perspective help bridge the gap between chemical plant and laboratory bench. Working with direct manufacturers means more than a purchase; it’s an investment in transparent, accountable supply that holds up to the scrutiny of the real-world projects that depend on it.