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2,3-Dimethyl-2,3-Diphenylbutane

    • Product Name 2,3-Dimethyl-2,3-Diphenylbutane
    • Alias TM-DP
    • Einecs 201-580-7
    • 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

    800742

    Name 2,3-Dimethyl-2,3-diphenylbutane
    Molecular Formula C18H22
    Molar Mass 238.37 g/mol
    Appearance White crystalline solid
    Melting Point 126-129°C
    Density 1.018 g/cm3
    Solubility In Water Insoluble
    Cas Number 1889-67-4
    Chemical Structure Ph2C(CH3)-CH(CH3)Ph2
    Iupac Name 2,3-dimethyl-2,3-diphenylbutane
    Smiles CC(C)(C(C)(C)C1=CC=CC=C1)C2=CC=CC=C2
    Stability Stable under normal conditions

    As an accredited 2,3-Dimethyl-2,3-Diphenylbutane factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing A 100-gram amber glass bottle with a secure screw cap, featuring a white chemical label for 2,3-Dimethyl-2,3-Diphenylbutane.
    Shipping 2,3-Dimethyl-2,3-diphenylbutane should be shipped in tightly sealed containers, protected from light, moisture, and incompatible materials. Ensure compliance with local, national, and international regulations. Package with absorbent material in case of leaks, and clearly label all containers. Handle with care to prevent breakage and potential exposure. Store at room temperature.
    Storage Store 2,3-Dimethyl-2,3-diphenylbutane in a tightly sealed container, away from moisture and direct sunlight. Keep the container in a cool, dry, and well-ventilated area, separate from strong oxidizing agents. Ensure appropriate labeling and secure storage to prevent accidental release. Follow all local regulations and safety guidelines for handling and storing organic chemicals.
    Application of 2,3-Dimethyl-2,3-Diphenylbutane

    Applications of 2,3-Dimethyl-2,3-Diphenylbutane in Industrial Manufacturing

    We produce 2,3-Dimethyl-2,3-Diphenylbutane at scale to supply core intermediates for fine chemical manufacturing. Our technical focus supports specialized downstream conversion, enabling customers in polymerization, pharmaceutical synthesis, electronics, and agrochemical manufacturing. Detailed application scenarios below illustrate integration, compliance, and quality control considerations for direct industrial use.

    1. Polymerization Initiators in Polymer Manufacturing

    Polymer producers employ 2,3-Dimethyl-2,3-Diphenylbutane as a free radical initiator, particularly for high-impact polystyrene (HIPS) and ABS resins. The compound's decomposition temperature and radical-generating efficiency align with continuous bulk and solution polymerization processes. Strict temperature profiles and dosing are controlled to ensure product consistency and minimize residual initiator. Each batch undergoes in-line purity monitoring before reactor feed-in. End users seek reliable radical sources to maintain polymer molecular weight distribution, impact strength, and performance.

    Industry compliance standards

    • ISO 9001:2015 for quality management
    • EU REACH substance registration
    • GB/T 19814 polymer-grade additives specification
    • Local environmental and worker safety regulations (e.g., OSHA, ECHA CLP)

    Typical usage ratio

    • 0.05–0.15 wt% based on monomer load
    • Dosage may shift with reactor scale, monomer type, or desired polymer properties

    Downstream process integration

    • Added to monomer feed during initial charge or staged feed
    • Thermal initiator activation zone tailored for decompositional characteristics
    • Incorporated within reactor train via pre-mixed solution or direct solid dosing
    • Integrated with internal process controls for initiator/monomer feed ratio

    Final product types

    • High-impact polystyrene (HIPS) sheets and pellets
    • Acrylonitrile butadiene styrene (ABS) resins
    • Styrene block copolymers for automotive and appliance housings
    • Specialty branched polymers for consumer goods

    2. Reducing Agent in Pharmaceutical Intermediate Synthesis

    Chemical manufacturers utilize this material as a selective hydrogen donor in the reduction of functionalized precursors, including naphthalene and aromatic ketones, for pharmaceutical intermediate synthesis. Controlled reactivity and low byproduct formation are essential for GMP production, and our upstream QC documentation facilitates downstream traceability. Crystallization and isolation employ dedicated reactors and filtration lines to prevent cross-contamination. Compound identity and batch purity are documented by HPLC and GC-MS before onward processing.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice (GMP) guidelines
    • EU GMP Volume 4 Part II for API intermediates
    • Ph. Eur./USP reference standards for related substances
    • 21 CFR 210/211 cGMP for pharmaceuticals

    Typical usage ratio

    • 0.9–1.3 molar equivalents per reducible group
    • Calculated to balance conversion rate and minimized over-reduction; subject to reaction scale-up

    Downstream process integration

    • Fed into hydrogenation or reduction steps after initial substrate charge
    • Applied in solvent-controlled environments under inert atmosphere
    • Direct handling under GMP-restricted zones; documentation for traceability
    • Followed by filtration and solvent exchange before intermediate drying

    Final product types

    • Hydronaphthalene derivatives for CNS drug synthesis
    • Substituted diaryl compounds for analgesic actives
    • Hydroaromatic intermediates for hormone APIs
    • Active pharmaceutical ingredient (API) precursors

    3. Process Reagent in Specialty Electronic Materials

    Electronics materials makers use 2,3-Dimethyl-2,3-Diphenylbutane in the preparation of photoresist monomers and precursors for organic semiconductors. High-purity synthesis and rigorous filtration remove all particulates, thus enabling defect-free film formation. Batch records meet electronics QC auditing from input verification to final packaging. Our analytical batch reports support trace analysis of potential ionic and organic contaminants to permitted levels for downstream photolithography lines.

    Industry compliance standards

    • IATF 16949 for electronics-grade raw materials
    • IEC 61249-2-7 standards for organic materials in PCB fabrication
    • JEITA EM-3600 for organic semiconductor purity
    • RoHS/REACH compliance for environmentally regulated substances

    Typical usage ratio

    • 0.1–2.0 wt% based on total resin formulation
    • Adjusted to meet optical density, cross-linking, and resistivity targets

    Downstream process integration

    • Mixed with photoresist resin base prior to resin casting or spin-coating
    • Added during batch synthesis or via inline dosing in oligomer reactors
    • Pre-filtration before deposition to eliminate microcontaminants
    • Subjected to in-process QC sampling per microelectronic standard operating procedures

    Final product types

    • Photoresist monomers for wafer patterning
    • Organic film-forming materials for OLED displays
    • Light-activatable cross-linkers in printed electronics
    • Electronic-grade specialty coatings for circuit fabrication

    4. Synthetic Intermediate in Agrochemical Active Manufacturing

    Manufacturers in the agrochemical sector use this compound as a synthetic intermediate to craft diphenyl butane derivatives, serving as core scaffolds for novel fungicide and herbicide actives. Each batch is supplied with full impurity profiling, allowing precise in-process checks before multi-step coupling and cyclization. Reactors, solvent recovery, and downstream separation adapt to the compound's specific melting and solubility traits. Coordination with post-synthetic methylation or halogenation enables target yield improvements and less side-product carryover.

    Industry compliance standards

    • FAO/WHO specifications for technical material production
    • ISO 9001:2015 certified agrochemical intermediates production
    • EU BPR (Regulation (EU) No 528/2012) for active raw materials
    • China’s GB 26.2016 Pesticide Registration Data Requirements

    Typical usage ratio

    • 0.2–0.8 molar equivalents per reaction, adjusted for desired active ingredient yield
    • Adjusted depending on side-chain substitution and reagent reactivity

    Downstream process integration

    • Activated in the main intermediate synthesis step, prior to bioactive functionalization
    • Inline analytic QC for purity before coupling to heterocyclic fragments
    • Used in sealed reactors with active environmental monitoring
    • Downstream filtration and crystallization for technical material isolation

    Final product types

    • Diphenylbutane-based fungicide technicals
    • Herbicide synthetic intermediates
    • Crop protection active precursors
    • Specialty adjuvant compounds for pesticide formulation
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    Certification & Compliance
    More Introduction

    2,3-Dimethyl-2,3-Diphenylbutane: Practical Value in Industrial Applications

    We have spent years refining the production of 2,3-Dimethyl-2,3-Diphenylbutane, shaped by hands-on experience across industries that rely on credible supply and consistent product quality. This compound stands out for those who see value in chemical purity and reliable performance rather than just the name on a datasheet. Its model number, DMDB-98, signifies our current standard batch, reflecting a purity expectation above 98% as measured by gas chromatography. Consistency here is not a luxury—some downstream applications demand no less.

    The Chemistry in Simplicity: Formula, Structure, and No-Nonsense Production

    The structure speaks for itself: two methyl groups and two phenyl groups meet symmetrically on a butane backbone, locking in stability. On the plant floor, synthesis draws on controlled alkylation using accurately tuned stoichiometry, and the separation steps focus on avoiding contamination with structurally similar byproducts. Technicians have learned to recognize subtle changes in crystallization by sight and by simple tactile feedback—less reliance on process control instruments, more faith in direct observation, built over years. From raw ingredient handling to packaging in inert atmospheres, many steps reflect the lessons picked up through real batch runs rather than textbook predictions.

    What Sets 2,3-Dimethyl-2,3-Diphenylbutane Apart from Similar Compounds

    In simple terms, the molecule’s architecture gives it a pair of bulky phenyl rings not found in straight-chain alternatives. That means a marked shift in physical properties. While many butanes can be oily or even volatile under mild conditions, DMDB presents as a solid with a clearly defined melting point, making isolation and storage straightforward. Purification tends to favor fractional crystallization, rarely calling for high-pressure distillation that other hydrocarbons need. Comparatively, substances like 2,3-dimethylbutane or diphenylbutane without the dual methyl/phenyl substitution seldom offer DMDB’s blend of physical stability and chemical inertness, which makes them less suitable for precision-demanding environments.

    From a manufacturing point of view, replicating our standard product batch after batch has uncovered more subtle distinctions. Pure 2,3-dimethylbutane is more volatile and lacks the useful solid-state advantages. Diphenylbutane analogs without the methyl groups can fall short in steric bulk, which sometimes translates to inferior shelf-life or susceptibility to oxidation. These are not theoretical risks. We’ve watched samples degrade in warehouse conditions when the difference in substitution pattern made all the difference between a robust intermediate and a shelf-unstable compound.

    Usage in Modern Industry: Practical Demands and Real-World Functions

    In our view, the market for 2,3-Dimethyl-2,3-Diphenylbutane gathers momentum from specialized niches—chief among them being organic synthesis and materials science. Synthesis teams often turn to DMDB as a radical initiator or as a hydrogen donor in reductive settings. The symmetrical substitution pattern encourages predictable reactivity, so organic chemists utilize the compound in controlled lab-scale hydrogen transfer reactions. In many cases, teams have told us that alternatives such as toluene, even with cost advantages, simply don’t deliver the selectivity needed in certain selective reduction chemistries.

    Materials science, particularly in the field of specialty polymers, makes use of the unique steric hindrance of this molecule. Its bulk helps enforce packing order in crystalline lattice studies. For semiconductors and advanced electronic components, process engineers rely on its solid-state properties under manufacturing conditions. Unlike lower-weight alkylbenzenes that tend to sublimate or oxidize, DMDB maintains integrity in storage and processing—reducing headaches for QA teams downstream who have seen firsthand the consequences of unplanned material loss.

    We have even watched research groups try to retrofit less expensive or lower-melting analogs into pilot projects, only to revert to our product when faced with unpredictable handling properties or off-spec results. These stories remind us that the right compound, manufactured right, cushions process risk at scale. That is not some advertising bullet point but something witnessed line by line in batch logs and customer communications.

    Physical Properties: Making and Keeping a Reliable Product

    On the plant floor, every operator leans on clarity and repeatability. DMDB’s crystalline form at standard temperature offers a practical edge—scooping, weighing, and blending follow routine that reduces exposure issues and product loss. Its melting point provides a straightforward QC check. Other similar molecules muddy the waters with broad melting points or move between solid and liquid with small changes in room temperature, making inventory hassles all too familiar. With DMDB, storage crews rely on drums that do not sweat or leak thanks to its stability.

    Purity matters more than many books suggest. The few times a run led to color impurities or oily appearance, customers noticed, sometimes before the analytical lab did. Reaction efficiency in downstream chemistry can dip with even minor contamination. So our QC focus has grown from paperwork to active, practical measures—using both automated and hands-on inspections by experienced technicians. Sometimes, just the feel of a batch, the texture or resistance on a spatula, tips old hands off to a fault before chromatography provides confirmation.

    Safety and Practical Handling

    As a manufacturer, we pay attention to real-world handling concerns. DMDB sits flat in storage, away from oxidizing agents, and does not tend to fume or emit strong odors. While all organics deserve respect for their flammability, DMDB’s solid-state form means inhalation risks and uncontrolled vapor exposure are dramatically lower than for volatile hydrocarbons. We encourage simple safety protocols—grounding bulk containers, avoiding open flame, and keeping containers tightly sealed.

    Shipping DMDB presents fewer problems than more volatile cousins. Regulations classify it generally as a low-hazard material, which simplifies logistics. Operators on loading docks prefer handling this compound compared to volatile or highly reactive chemicals that carry higher spill or inhalation risks. It is not immune to risk, but workers tell us they notice the difference during long shipping months, especially across temperature swings where some similar compounds turn sloppy or separate into multiple phases.

    Challenges in Manufacturing High-Purity 2,3-Dimethyl-2,3-Diphenylbutane

    No batch process runs perfectly every time. Our plant has seen what happens if temperature drifts by even a few degrees during synthesis—side products creep in, and purity falls short. Removing trace impurities, especially structurally similar compounds, pushes the limits of fractional crystallization and often requires multiple passes and increased solvent recovery. That adds costs and forces us to keep an eye on both waste streams and efficiency.

    Worker skill forms an essential backbone. New operators rely on senior staff to read unspoken cues like color changes or cooling patterns that signal trouble in the crystallization phase. Investing in real-world training, not just SOPs, means fewer surprises and faster batch turnarounds. Equipment matters too: we have upgraded vacuum lines, filtration gear, and temperature controls based on observed bottlenecks, not just the recommendations in equipment catalogs.

    Recycling solvent from the mother liquor has become an inescapable part of the process—both for cost reasons and as part of our commitment to a tighter environmental footprint. Every solvent drum reused counts toward keeping overhead manageable and waste disposal in check. Sometimes, process optimization feels like a daily battle between cost, time, and quality—a reality that every batch record tracks, and one that has changed the way our operators think about production targets.

    Quality Assurance: Practical Perspective

    Quality assurance steps off the page and directly onto the production floor with DMDB. Instead of only running chromatography and spectroscopy checks in the lab, we station technicians to monitor batches for physical cues: consistency, color, odor, and melting point shifts. Catching issues early beats running remediations later. We have built in checkpoints that reflect lessons from actual production runs, not just ISO paperwork. If a batch drags in filtration or forms unexpected residues, our system stops work and loops in a team for troubleshooting instead of pushing flawed product down the line.

    Feedback from end-users shapes our benchmarks. Researchers and process chemists share real feedback—sometimes praise, sometimes blunt criticism—about lot-to-lot consistency, packaging practicality, or changes in physical appearance. We take those notes directly back into the manufacturing and packaging steps, upgrading material liners or adjusting crystallization solvent based on what works best in practice, not just on paper. This loop closes the gap between theory and practical need and drives our continuous improvement approach.

    Packaging, Storage, and Shelf Life: Lessons from the Field

    We have seen many approaches to packaging in this industry, but for DMDB, rigid, airtight drums or glass containers keep the compound dry and free of trace moisture. Changes in packaging line—such as adding inner liners or switching cap materials—came in response to actual spoilage reports and hands-on storage checks. Unlike some oily or powdery amphiphilic compounds, DMDB resists caking and packs easily by vibration, which means users receive uniform product from the top of the drum to the bottom. Shelf life typically extends three years or more under controlled warehouse conditions, but we’ve learned that attention to temperature and humidity—low, constant, and shielded from direct sun—keeps the product within specification far longer.

    Handling bulk shipments sometimes means extra cardboard reinforcement or vibration control in long-haul trucks, learned the hard way from a shipment where surface friction generated enough heat to cause localized melting at drum edges. This led us to tweak both container choice and loading procedures—practical fixes to specific, experienced problems rather than theoretical improvements.

    Environmental Footprint and Operational Responsibility

    Managing environmental stewardship has grown from buzzwords into work-lists. Solvent recovery and emissions minimization go hand in hand on the DMDB line. Operators enforce simple habits—tight drum sealing, keeping the crystallization step in closed systems, and recycling filtrate wherever possible. Byproducts and rinse solvents do not go out as simple waste; we partnered with local firms who handle these streams with post-recovery recycling, reducing landfill burden and tightening supply chains. On the chemical end, DMDB’s stable nature makes disposal less hazardous compared to many volatile organic chemicals, but we keep monitoring and tracking as core duties, not afterthoughts.

    Reducing energy input matters not just for regulatory compliance, but for keeping utility bills reasonable. Optimization of cooling cycles and insulation of crystallization tanks took place only after crews tracked inefficiency from direct experience—a few rounds of higher electric readings in summer was all it took to push these upgrades. Staff feedback on energy-intensive steps played into our yearly planning and budget process. Everyone, from the production floor to management, understands that sustainability grows from the ground up, batch by batch, adjustment by adjustment.

    Feedback, Continuous Improvement, and Collaboration with End Users

    Direct dialogue with customers makes all the difference in ongoing product quality. We open our lines to researchers and technical users across industries who share their findings on DMDB performance or handling quirks. Whether received through formal feedback reports or casual phone calls, we take it seriously. It was direct user input that pushed a switch from simple drum seals to specialty barrier films, addressing a moisture migration issue that never appeared in lab testing but cropped up in overseas shipping. Issues captured in the field play back into how we train our operators, formulate procedural changes, and forecast batch scheduling needs for major end users.

    On occasion, we collaborate with larger buyers or research institutions who identify entirely new applications or uncover bottlenecks in their processes using DMDB. These projects, sometimes rooted in developing advanced pharmaceutical intermediates or pioneering materials, give us fresh data and let us tweak our process or specifications. This direct loop cuts down guesswork and improves both our product and our customers’ outcomes without resorting to slow, bureaucratic cycles.

    The Future of 2,3-Dimethyl-2,3-Diphenylbutane Production

    Tracing the arc of DMDB’s industrial use, we see a pattern: innovation often kicks off when process engineers use the compound to solve real-world technical hurdles. The quest for higher-purity intermediates in custom synthesis, or the move toward improved physical stability in advanced materials, both point to continued strong demand for this molecule—provided it’s made to tight standards and delivered without surprises. Manufacturing teams, not just lab chemists, drive these advances, spotting turning points and fixing issues as they arise with practical, workable solutions. We expect this trend to continue, with more collaboration and data-driven process improvements taking the lead over abstract “innovations” with little street reality.

    Status quo never stays put in chemical manufacturing. Supply chains shift, customer requirements move with technology, and operational realities on the ground force continuous tweaks to SOPs, batch controls, and product delivery. For DMDB, those changes keep us at the bench and on the floor, watching the data, listening to users, and making the incremental fixes that real people working in real plants count on every day.

    Summary View: Why 2,3-Dimethyl-2,3-Diphenylbutane Matters to Us

    Our story with DMDB runs deeper than the chemical formula. Each batch tells its own story of trial, error, and practical improvement. From its foundational stability and ease of handling to a hard-earned understanding of what makes a run truly successful, we bring the weight of experience to every shipment. Rather than rely on abstract selling points, we share what years of hands-on manufacturing have shown us—a learning process shaped by customer input, operational realities, and the simple principle that better practice and direct accountability make better chemicals. Whether for advanced synthesis, precise material applications, or reliable bulk handling, we take pride in the day-to-day commitment behind each drum of 2,3-Dimethyl-2,3-Diphenylbutane.