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1,2-Diphenylethane

    • Product Name 1,2-Diphenylethane
    • Alias bibenzyl
    • Einecs 202-863-0
    • 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

    260055

    Common Name 1,2-Diphenylethane
    Iupac Name 1,2-Diphenylethane
    Chemical Formula C14H14
    Molar Mass 182.26 g/mol
    Appearance Colorless solid
    Melting Point 52-54 °C
    Boiling Point 282-284 °C
    Density 1.006 g/cm³
    Solubility In Water Insoluble
    Cas Number 103-29-7
    Pubchem Cid 7622
    Structure C6H5CH2CH2C6H5
    Smiles c1ccccc1CCc2ccccc2

    As an accredited 1,2-Diphenylethane factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing 1,2-Diphenylethane is packaged in a 250-gram amber glass bottle with a secure screw cap and clear hazard labeling.
    Shipping 1,2-Diphenylethane should be shipped in tightly sealed containers, away from incompatible substances and sources of ignition. It must be clearly labeled, transported according to local and international regulations, and protected from physical damage. Use appropriate secondary containment and ensure that the shipping documents include all necessary hazard information as per GHS/OSHA guidelines.
    Storage 1,2-Diphenylethane should be stored in a tightly closed container in a cool, dry, and well-ventilated area, away from sources of ignition and incompatible materials such as oxidizing agents. Protect it from direct sunlight and moisture. Properly label the container and keep it away from heat and flame. Follow all relevant safety regulations and guidelines for storage of chemicals.
    Application of 1,2-Diphenylethane

    Applications of 1,2-Diphenylethane in Industrial Manufacturing

    As a direct manufacturer, we produce 1,2-Diphenylethane to the highest quality standards for demanding industrial applications. Our material plays an essential role in downstream manufacturing processes where specific chemical performance and compliance requirements are critical. Below we highlight four key application scenarios where our product supports precise formulation, consistent process integration, and regulatory adherence across established chemical sectors.

    1. Intermediate for Liquid Crystal Material Synthesis

    1,2-Diphenylethane functions as an important synthetic intermediate for the production of advanced liquid crystal compounds used in the display industry. Manufacturers rely on its molecular structure to build mesogenic cores found in high-performance LCDs for televisions, monitors, and instrument panels. It enters multistep organic synthesis sequences, forming linkages that determine the phase behavior, optical properties, and viscosity of resultant liquid crystals. Batch-to-batch consistency and material purity directly impact the effectiveness of the display substrate, making rigorous adherence to global standards mandatory for downstream partners.

    Industry compliance standards

    • IEC 62341-1-1 (OLED displays safety and testing)
    • RoHS Directive (Restriction of Hazardous Substances)
    • ISO 9001:2015 Quality Management System for electronic materials
    • REACH Regulation (EU chemicals registration)

    Typical usage ratio

    • Ranged from 5% to 15% by mole in synthetic intermediates, adjusted based on targeted mesogen composition and desired thermal range of the liquid crystal mixture.

    Downstream process integration

    • Introduced during initial condensation or alkylation step for mesogen core synthesis.
    • Reacted under carefully controlled parameters to avoid isomerization and impurity accumulation.

    Final product types

    • Twisted nematic (TN) and in-plane switching (IPS) liquid crystals
    • Alignment layers for LCD substrates
    • Advanced display panels for consumer electronics
    • Specialized scientific visualization modules

    2. Feedstock for Polymer Additive Manufacturing

    Chemical manufacturers use 1,2-Diphenylethane as a tailored intermediate in the synthesis of specialty polymer additives, such as flame retardants and UV absorbers, for engineering plastics. Its aromatic structure facilitates stable modification reactions, contributing controlled rigidity and durability to target additives. These intermediates enter closed-loop production environments where exact dosing and sequencing affect polymer compatibility and additive dispersibility, influencing final product stability during molding and compounding operations in the plastics industry.

    Industry compliance standards

    • UL 94 (Flammability Standards for Plastics)
    • EN 71-3 (Safety of Toys – Migration of certain elements)
    • ISO 14000 Environmental Management Requirements
    • Global Automotive Declarable Substance List (GADSL)

    Typical usage ratio

    • Incorporated at 2% to 8% by weight in additive precursor synthesis; the proportion varies based on polymer type, performance targets, and desired resistance properties.

    Downstream process integration

    • Processed by alkylation, acylation, or cross-coupling as the first or second stage in additive manufacturing.
    • Purified and blended into polymer masterbatches before injection molding or extrusion.

    Final product types

    • High-impact polystyrene (HIPS) and acrylonitrile butadiene styrene (ABS) compounds
    • Flame-retardant PC and polyamide resins
    • UV-stabilized automotive interior parts
    • Electrical connector housings

    3. Precursor for Aromatic Fine Chemicals and Fragrance Ingredients

    Perfume and flavor chemical specialists employ 1,2-Diphenylethane to synthesize odorants with refined floral and balsamic notes, widely used in fine fragrance and personal care bases. Through controlled hydrogenation, oxidation, or halogenation, producers generate bespoke intermediates such as phenethyl derivatives and complex esters. Downstream synthesis requires scrupulous material traceability and consistent purity to satisfy international fragrance and cosmetic regulations, ensuring consumer safety in end-use applications.

    Industry compliance standards

    • IFRA Standards (International Fragrance Association)
    • REACH Annex XVII (Restrictions on certain dangerous substances)
    • Cosmetic Regulation (EC) No. 1223/2009
    • ISO 22716 (Cosmetics GMP Guidelines)

    Typical usage ratio

    • Typically 3% to 10% by weight within targeted fragrance ingredient synthesis pathways, adjusted according to desired note intensity and blend profile.

    Downstream process integration

    • Engaged as a starting reactant in Friedel-Crafts acylation or oxidation sequences for aroma chemical development.
    • Purified and further functionalized before inclusion in compound perfume blends or flavor bases.

    Final product types

    • Fine fragrance bases (eau de parfum, eau de toilette)
    • Skin care and personal wash products with signature scents
    • Flavor accords for beverages and confectionery (following purity assessment and approval)
    • Deodorant sprays and functional air care products

    4. Building Block for High-Purity Laboratory Chemicals

    Producers of reference standards, analytical reagents, and specialty dyes utilize 1,2-Diphenylethane as a molecular building block in controlled laboratory syntheses. Its defined structure and impurity profile support the production of calibration materials, chromatography markers, and colored indicators necessary in pharmaceutical QC, academic research, and advanced materials analysis. Manufacturers rely on traceable batch history and high assurance throughout the preparation and isolation stages to conform to global laboratory and analytical reference material requirements.

    Industry compliance standards

    • ISO 17034:2016 (General requirements for the competence of reference material producers)
    • USP <1040> (Qualification of Analytical Instruments and Reference Materials)
    • Ph. Eur. (European Pharmacopoeia) Reference Standards Guidance
    • GLP (Good Laboratory Practice) regulations

    Typical usage ratio

    • Added at 1% to 5% by weight in synthesis runs depending on the stoichiometry for the target analytical standard or dye precursor; calculated based on precise molecular requirements.

    Downstream process integration

    • Reacted in weighed batches for specific side-chain functionalization or as a calibration standard base.
    • Purified by recrystallization, solvent extraction, or chromatography to achieve ultra-high purity grades.

    Final product types

    • Reference materials and calibration standards for instrument analysis
    • Chromatographic dye markers
    • Specialty intermediates for pharmaceutical R&D
    • Indicator dyes for titration and analytical testing
    Free Quote

    Competitive 1,2-Diphenylethane prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    1,2-Diphenylethane: A Clear Advantage in Consistency and Purity

    Our Commitment to 1,2-Diphenylethane Production

    Every batch of 1,2-Diphenylethane we manufacture tells the same story: consistent purity, high quality, and reliable supply. Over decades in the chemical industry, our team has pushed to refine each step in the process—from raw material sourcing to the last stage of purification. Experience with the subtler aspects of this compound’s production pays off in more ways than one. Customers count on even the smallest details being right. That’s the kind of confidence that comes from dealing with a real manufacturer, not a middleman.

    The industry uses 1,2-Diphenylethane, also known as stilbene, across a surprising range of applications. Most requests reach us from users in fine chemicals, specialty organic syntheses, and materials development. We see it perform as a trusted intermediate and as part of some innovative R&D work, particularly where its stable aromatic backbone delivers chemical resilience. Compared to many diaryl alkanes, 1,2-Diphenylethane creates fewer headaches due to its predictable chemical behavior and physical stability.

    Understanding the Product: Model and Specifications

    In our production slate, 1,2-Diphenylethane appears as a white to off-white crystalline solid. Each lot we send out meets strict purity benchmarks, with standard technical grades exceeding 99% GC assay. We use gas chromatography in-house for every release, and real-world feedback over the years shaped those purity targets. The melting point falls consistently near 52–54°C, indicating a product with low levels of unknowns. Customers with specialized needs can request refined cuts, but well over 95% of users find our default grade meets or exceeds project specs.

    The product drops from our lines in several packaging types. We prefer sealed HDPE drums for bulk volumes, often 25 kilos or larger, and glass bottles for lab-scale orders. All containers come with tamper-evident seals and clear lot coding—an obvious move for traceability, but one that makes tracking a lot smoother when audits come up or a project turns up something unexpected.

    Why 1,2-Diphenylethane Still Stays in Demand

    Older aromatic hydrocarbons such as 1,2-Diphenylethane don’t fade because trends change—they stick around by meeting practical requirements. Our experience tells us that researchers come back to it for its manageable reactivity, straightforward handling, and low toxicity relative to many larger polyaromatics. Chemists looking for a stable framework for further functionalization find it makes a reliable stepping stone. In polymer R&D, it often plays a role in testing durability or thermal characteristics thanks to its stable ethane bridge.

    Its use as a starting material or intermediate in specialty organic synthesis underlines just how much value there is in keeping product quality consistent. One off-spec batch means wasted runs, troubleshooting, and delays on someone else’s schedule—not acceptable from a producer’s perspective. That’s the reason we maintain investment in analytical technology and continuous training for everyone involved in the process.

    What Distinguishes Our 1,2-Diphenylethane from Other Products?

    Manufacturers don’t always share their precise process techniques, but long experience speaks through every bottle and drum. We source benzene and ethylene from vetted regional partners, favoring material with tight impurity control right from the start. Our hydrogenation process uses custom catalysts maintained and replaced at specific intervals, with process monitoring that flags anomalies before they snowball. This leads to a finished product with low trace aromatic contaminants and almost no unreacted starting material.

    Some suppliers cut corners by using lower-quality feedstocks, or by pushing plant capacity beyond recommended levels, which lets through colored impurities and process residues. Our own eyes—and countless conversations with plant staff—tell us that each shortcut in the supply chain adds risk for end users. Customers switching to our 1,2-Diphenylethane almost always report improved reaction yields, especially in secondary steps where side-products from lesser material can gum up equipment or pollute analytical traces.

    We’ve faced requests for ‘commodity grade’ material at rock-bottom pricing, and each time we refuse to compromise the process. The result: a cleaner, more consistent product that customers can use without reservation.

    Customer Insights: How Industry Relies on True Manufacturing

    Our client relationships go back decades. Over time, some of the best feedback comes straight from the plant floor. A specialty polymers developer found that their extrusion lines ran longer between clean-outs after switching to our grade, simply because fewer trace aromatics accumulated. A fragrance chemistry lab mentioned that trace off-notes, previously blamed on solvent residue, disappeared entirely when they changed their supplier to us.

    We believe these stories underscore the risks of trusting distributors or anonymous web sellers. True chemical manufacturing brings a predictable upstream process, complete documentation, and end-to-end accountability. As a plant manager, nothing beats the satisfaction when the person at the other end of the line can get answers about trace impurities or lot genealogy within minutes, not hours or days.

    Quality, Traceability, and Regulatory Support

    Thanks to long years in the business, we follow standards and best practices developed with industry partners and regulatory agencies. Certificates of Analysis detail every measurable parameter. Some customers audit our plant and review control charts stretching back over five years. This transparency became standard for us long before external forces required it.

    Our logistics teams document every drum and bottle, pairing international chemical product codes with internal traceability. If an end-user in the pharmaceutical sector needs REACH support or a documentation package for environmental, health, and safety review, we’re already prepared. We maintain direct lines with regulatory liaisons who track changes in global policy affecting aromatic hydrocarbon manufacture, especially for export.

    Production Challenges and Process Improvements

    No real manufacturing happens without challenges. From variable weather affecting plant equipment to raw material supply fluctuations, there’s always something new. Years ago, one of our reactors developed trace metallic contamination picked up by our QC team ahead of a large shipment. After a long night, we tracked the problem to a gasket installed off-spec. We changed our maintenance checks and never saw that problem again. Each improvement often comes from direct lessons, not business school case studies.

    We believe automation and real-time monitoring will keep playing a bigger role as labor pressures rise. No amount of automation fully substitutes for trained technicians and plant engineers who’ve seen how color and smell shift with reactor performance. We use both machine learning systems for early warning and daily sample evaluation by people who know exactly what makes a batch just right.

    This loop of feedback—from process chemists to downstream users and back—steers our choices on upgrades and new investments. Better controls bring down batch-to-batch variation, but we avoid chasing every trend. None of the major problems in production get solved by quick fixes or silicon alone. Plant leadership still takes the final responsibility for every lot number.

    Upstream Sourcing and Sustainability

    Pressure for responsible sourcing grows each year. Not all aromatic chemical producers can tell you much about their solvent origins, let alone the miles raw material travels. Over the last decade, customer requests for supply chain documentation picked up pace, especially among multinational clients.

    We choose suppliers willing to disclose upstream logistics and who demonstrate their own investment in cleaner energy or recycling. Our own plant recycles utility water and captures solvent fugitive emissions before discharge, following environmental recommendations from industry groups. Few customers ever see the inside of our wastewater containment, but regular environmental audits held by third-party inspectors keep us improving.

    We see a shift in the market toward more transparent lifecycle analysis—measuring not only what leaves the plant, but what went in at each stage. Responding to this trend demands more work, but improves trust between partners who rely on high-quality intermediates like 1,2-Diphenylethane.

    Practical Usage in Research and Industry

    Our product makes its way into research labs, pilot plants, and scaled-up manufacturing environments. In the academic world, post-grads and research chemists use 1,2-Diphenylethane as a reference standard in NMR calibration, as well as a model intermediate for organic synthesis. In materials testing, it provides a building block for new polymers or liquid crystalline materials—its rigid structure acting as a test platform for radical modifications.

    The pharmaceutical industry sometimes uses it as a parent structure or masking group in multi-stage synthesis, where every trace impurity affects downstream isolation. Electronics manufacturers have taken interest in exploratory studies, particularly as organic electronics develop. Here, the demand for extreme purity grows, as trace metals or aromatic byproducts influence electronic properties.

    Large customers purchasing by the drum use it as a coupling component or reactive diluent in different specialty plastics. In fragrance and flavor chemistry, the compound serves as an intermediate for certain cyclic scent molecules, since controlled aromaticity lets chemists add side chains efficiently. Long experience tells us that specification “creep” in end-use markets drives requirements upward; what sufficed five years ago now falls short for new projects with stricter standards.

    Physical Properties and How They Matter to Users

    People used to handling volatile organics value 1,2-Diphenylethane’s low volatility and firm melting range. Storing stock material rarely poses problems, so it travels well across continental distances. The crystalline habit cuts down on dusting, simplifying transfer and weighing. Our packaging team still keeps a close watch on shelf life and container compatibility, since changes in HDPE additives can sometimes affect stability longer-term.

    Customers care as much about how the product arrives as how it functions in the lab. If a shipment picks up too much temperature during travel, it can cake or produce excess fines. Trust built up through consistent shipping and warehousing sets steady producers apart from the crowd of brokers and spot traders who don’t always handle temperature controls.

    Feedback, Problems, and Solutions

    We hear about issues almost as quickly as we hear about successes. Typical feedback circles around ease of handling, color stability, and actual assay matching our labels. Rarely, a user running at the edge of specification tolerance requests deeper analysis to explain micro-impurities their process picks up. We maintain the capacity to provide detailed GC-MS trace analysis by request, drawing on a bench of experienced analytical chemists.

    More than once, customer process changes led to new interactions with trace components nobody anticipated. We walk through process maps and sometimes review competitor samples to identify root causes, aiming not just to sell but to solve a problem at the bench. For industrial lots, we maintain retention samples for up to two years, supporting any post-shipment questions with actual evidence instead of theories.

    Lessons Learned from Decades of Manufacturing

    Looking back, the key lessons always point back to control at every step: feedstock choice, plant maintenance, skilled production, and open dialogue across departments. Our best customers stay loyal not out of obligation, but because they see results in fewer shutdowns, easier compliance reporting, and higher throughput in their own processes.

    We’ve watched regulations tighten and reporting standards expand. Experienced plant operators and lab supervisors keep up with these changes, drawing from firsthand knowledge of both regulatory shifts and what it actually takes to run a reliable plant. We treat each request as a chance to add to this body of knowledge, keeping us sharp for future needs.

    The Future of 1,2-Diphenylethane Production

    Aromatics manufacturing keeps evolving as technologies mature and sustainability pressure grows. Companies like ours have to strike the balance between reliable quality and new efficiency standards. Demand for electronic-grade and ultra-high-purity compounds continues to rise, making trace contaminant control even more critical.

    Our team works with external partners and research groups to anticipate those shifts—saving months of R&D time for customers looking to scale a lab recipe up to plant level. We continue investing in plant improvements, catalyst advancements, and contaminant detection. Behind every shipment sits a trail of hard-earned knowledge, continuous scrutiny, and a refusal to cut corners.

    Closing Thoughts: Putting Experience First

    Real production experience means learning every day and delivering the kind of chemical that lets users focus on their own work. For 1,2-Diphenylethane, the difference comes through not only in numbers on a spec sheet but in the ease of use, shipment reliability, and consistent support from a manufacturer who stands behind the product at every stage. We see our job as building trust as much as chemistry, responding directly to what the market and our customers need: reliability, open communication, and a respect for every kilogram leaving our plant.