|
HS Code |
204133 |
| IUPAC_name | 2,3-Dimethylbutane |
| molecular_formula | C6H14 |
| molar_mass | 86.18 g/mol |
| appearance | Colorless liquid |
| odor | Gasoline-like |
| boiling_point | 57.9 °C |
| melting_point | -128.6 °C |
| density | 0.653 g/cm³ (at 20 °C) |
| solubility_in_water | Insoluble |
| refractive_index | 1.3727 (at 20 °C) |
| flash_point | -21 °C |
| autoignition_temperature | 415 °C |
As an accredited 2,3-Dimethylbutane factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | A 500 mL amber glass bottle with a secure screw cap, labeled "2,3-Dimethylbutane," marked flammable and for laboratory use. |
| Shipping | 2,3-Dimethylbutane is typically shipped as a flammable liquid in approved, tightly sealed containers such as steel drums or cylinders. During transport, it must be clearly labeled according to hazardous materials regulations—UN No. 2377, Class 3, Flammable Liquids—and kept away from ignition sources, heat, and incompatible substances. |
| Storage | 2,3-Dimethylbutane should be stored in a cool, well-ventilated area, away from sources of ignition and direct sunlight. Keep the container tightly closed and grounded. Store separately from oxidizing agents and acids. Use approved safety containers and ensure proper labeling. Avoid temperature extremes and provide secondary containment to prevent leaks or spills. Follow relevant fire and safety regulations. |
Applications of 2,3-Dimethylbutane in Industrial Manufacturing2,3-Dimethylbutane serves as a specialty hydrocarbon with well-established performance in selected high-value industrial processes. Based on decades of bulk production experience and direct collaboration with end-user manufacturers, we focus on its genuine downstream utility in petrochemical blending, analytical calibration, reference fuel preparation, and organic chemical synthesis. Each use scenario below details industry mandates, optimal dosage ranges, exact processing points, and the finished products customers consistently manufacture from our material. 1. Reference Standard Preparation for Analytical LaboratoriesCertified laboratories use 2,3-Dimethylbutane as a volatile hydrocarbon reference to calibrate gas chromatography and other analytical detection equipment in both petrochemical and environmental testing. Laboratories require strict adherence to reference material requirements to ensure measurement validity and regulatory compliance, especially in the quantitation of complex gasoline blends. Calibration solutions incorporate this compound at precise, traceable concentrations determined by each laboratory's internal validation protocols and the applicable national standards. Industry compliance standards
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2. Component for Octane Rating Reference FuelsMajor automotive and fuel research organizations use 2,3-Dimethylbutane as part of the formulation for primary reference fuels in engine octane rating tests. Its branched alkane structure provides a known combustion profile, allowing researchers and laboratories to precisely calibrate engine knock testing equipment. Only hydrocarbons with validated performance and high purity qualify for use in these critical blends, which underpin both regulatory standards and fuel innovation initiatives. Industry compliance standards
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3. Feedstock for Isomerization and Petrochemical Catalysis StudiesPetrochemical R&D labs and catalyst manufacturers use 2,3-Dimethylbutane extensively as a controlled substrate for studying skeletal isomerization and related transformation reactions. Its defined molecular structure enables precise evaluation of catalyst performance, selectivity, and process efficiency in pilot-scale isomerization units, providing robust data for scale-up to industrial fuel upgrading facilities. Industry compliance standards
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4. Solvent Carrier in Organic Synthesis IntermediatesChemical intermediate producers deploy 2,3-Dimethylbutane as a non-polar reaction carrier within targeted alkylation and Friedel-Crafts-type synthesis steps. Its low reactivity, high volatility, and defined boiling point enable reaction selectivity and straightforward post-process separation. Batch production teams rely on consistent supply purity to achieve process yields and minimize downstream impurity carry-over, particularly where active pharmaceutical ingredient precursors or specialty monomers are involved. Industry compliance standards
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Manufacturing chemicals to a high standard demands vigilance, reliability, and a willingness to refine processes as market and regulatory expectations change. Over years in this business, we have seen customers in petrochemical research, fuel technology, and specialty chemical production look for organic compounds that don’t just meet a purity threshold—they expect predictability and clear technical value. 2,3-Dimethylbutane holds a distinct place among branched-chain alkanes, both for its behavior in test environments and for its structural differences compared to its close relatives.
In our own operations, we handle 2,3-Dimethylbutane (C6H14, CAS 79-29-8) to meet sustained demand from laboratories working on octane rating benchmarks, fuel additive testing, and comparative hydrocarbon research. What we’ve found is that the way a manufacturer respects source material, processing, and post-synthesis handling makes an enormous difference for customers who need to trust, not just buy, a sample or a bulk drum.
Unlike straight-chain hexane, 2,3-Dimethylbutane features two methyl groups on the central butane backbone. This branching changes its boiling point, lowers its melting point, and leads to a lower density compared with n-hexane. In practice, we see that this isomer resists vaporization under the same conditions where pentane or straight-chain hexane will evaporate more quickly. This is essential for those studying volatility profiles, evaporative losses, or working with equipment calibrated for reference grade samples.
Our customers planning for octane reference projects tend to focus on 2,3-Dimethylbutane’s motor and research octane numbers. As manufacturers, we ensure all batches fall within tight consistency bands, monitored and certified using gas chromatography and NMR. This focus comes not only from external quality audits but from direct field feedback—where a 2,3-Dimethylbutane sample that drifts in purity or contains even trace amounts of water or isomeric impurities can throw off engine knock experiments or instrument calibration.
Unlike isopentane or 2-methylpentane, both of which sometimes arrive in bulk with confusion over isomeric purity, we verify every shipment of 2,3-Dimethylbutane with fingerprint spectra, and we maintain batch retention samples. This is not academic—it’s a requirement rooted in experience supplying users who may adjust for fractions of a percent in their procedures. As manufacturers, we’ve found that providing access to this data on request, including retention indexes and impurity profiles, builds trust and prevents downstream issues.
Over a decade of refining our production process, we have learned that separation, distillation accuracy, and inert atmosphere handling form the backbone of a consistent product. In our facility, production begins with hydrocarbon cracking and proceeds through fractional distillation. Efforts to limit water ingress, oxygen exposure, and trace catalysts at every step keep our material colorless, free of haze, and chemically neutral. Some of our most fastidious customers don’t just look at purity certificates—they call for transparency on processing steps, lot histories, and even container cleaning methods.
We pack 2,3-Dimethylbutane mostly in pressure-rated aluminum cans or steel drums, based on quantities, and always ensure that fill lines and vessels are flushed and dried before any product enters the packaging area. There have been plenty of lessons learned along the way, especially with static charge or trace organic residues; both can spoil an otherwise clean sample, especially for analytical applications. We don’t treat this as a set-it-and-forget-it operation—every run comes with its own batch records, so we can trace outcomes and rapidly correct accidents or parameter drift.
No two production lots look the same in the real world. Post-production, we check odor, color, and stability. Subtle differences in storage conditions or delayed transfers have previously resulted in customer complaints, which led us to install controlled ventilation and implement tighter timelines from completion to shipment. While these steps may sound like redundancies to an outsider, they have kept our return requests lower than our industry peers. From a manufacturer’s perspective, performance is proven in the field, not just in a lab certificate.
Octane rating is the area where 2,3-Dimethylbutane’s value pops up most often. Fuel developers and engine researchers often bring up its high branching and how this structure impacts knock resistance. We’ve had repeated customer feedback that trace contaminants or mislabeling between isomers can ruin a full series of blending studies—so for us, tracers, side-by-side batch comparisons, and clear labeling stop confusion at the source.
In specialty labs, 2,3-Dimethylbutane is used as a volatility marker and internal standard for chromatographic calibration. A small deviation in isomer content can undermine the whole experiment. Our team has worked with university groups and fuel additive firms that required not just guarantees of chemical purity (over 99.5 percent on a molar basis), but also assurance that no co-eluting impurities remain. This is neither trivial nor common outside of a manufacturer with strict internal analytical protocols.
Unlike some straight-chain hexanes or other C6 isomers used as general solvents, customers choose our 2,3-Dimethylbutane when they need pure, specific physical properties—such as in low-temperature standardization or high-precision fuel blending studies. Its structure leads to a boiling point around 58 degrees Celsius, offering a lower range compared to n-hexane, and a refractive index that can be reliably tracked batch to batch. Researchers appreciate the predictability this brings, especially in side-by-side comparative studies with other hydrocarbon isomers.
Years of fielding questions from customers have taught us that value lies in reliability over the long haul. One-off orders rarely bring useful insight—those running long-term investigations into engine performance or fuel volatility want consistency above all. If a product shifts, even slightly, across supply cycles, a whole test series may need repeating. Early on, we got burned by an outlier batch that led to a full recall and a wave of dissatisfaction; that experience taught us the financial and reputational risk of cutting procedural corners.
Many new requests come in from chemical engineers working to benchmark various C6 isomers: n-hexane, 2-methylpentane, 3-methylpentane, and 2,2-dimethylbutane. We recognize that even small deviations can skew combustion modeling or thermodynamic predictions. Some of our regular industrial clients test our batches against reference samples from global standards labs. ‘Close enough’ never satisfies this crowd, so our own systems must rise to match those reference checks. Not every producer can guarantee this level of traceability, but in our business, shortchanging quality means losing repeat clients.
Packaging, for our recurring laboratory customers, often requires more attention than bulk fuel customers might anticipate. Many are after solvents in quantities as low as a few grams, but with documentation and container selection that avoid contamination. We get requests for certificates detailing absence of aromatic contamination, chloride, or sulfur—parameters that mean little in fuel blending, but change everything in analytical research. Over time, we have learned to anticipate these standards rather than struggle to retrofit a batch to unexpected specs.
Inside the hydrocarbon family, 2,3-Dimethylbutane stands apart for its resistance to knocking, its volatility, and its thermal stability. Customers quickly notice the distinction in boiling point compared to 2,2-Dimethylbutane—ours comes in cooler, indicating more branching but slightly higher volatility. Its lower melting point, compared to straight-chain n-hexane, allows research teams to work at temperatures where the latter remains in solid phase.
From a pure manufacturer’s perspective, the differences aren’t just academic. Distillation and storage must accommodate the distinct vapor pressure and flash point—parameters that shift with molecular branching. Equipment such as pressurized canisters, leak detectors, and custom vacuum drying procedures must adjust based on isomer type. Field experience has proven that customers seek predictability, so we avoid mixing production runs of different isomers or using shared equipment unless fully purged, which reduces risk of cross-contamination.
This care in separation and bottling ensures that when a researcher or industrial buyer receives a delivery, they’re getting authentic, single-isomer material. Customers who have seen poorly separated isomer batches recognize the difference at a glance and no longer accept materials with overlapping boiling ranges or unidentified side fractions. Our reputation has grown through word of mouth—not on advertising, but on problem-free shipments and direct access to analytical data.
We’ve learned that the modern market for specialty hydrocarbons expects openness and adaptability. Regular engagement with technical teams on both sides of the transaction sharpens our production standards. Requests for lower thresholds of water, sulfur, and benzene impurities keep arriving; customers running catalytic tests or environmental trials need data that goes beyond ‘meets standard’ checkboxes. We routinely publish complete impurity profiles and share physical property sheets that detail batch-specific boiling points, densities, and refractive indexes.
To support longevity and safety, we emphasize clear expiry and storage recommendations tailored to each delivery size. Field tests have shown that improperly stored samples—especially those in partially filled drums—pick up oxygen and shift baseline characteristics, which can throw off any research study. As a result, every outgoing shipment receives checklists and recommendations for ideal storage. We have also retrofitted our shipping line to support temperature and humidity controlled environments for critical or high-purity orders.
With the rise of more stringent REACH and international transport rules, documentation for 2,3-Dimethylbutane has become just as important as the product itself. Our teams coordinate with regulatory specialists to ensure SDS, transport manifests, and data books are accessible and aligned to the states and countries involved. For users needing to re-export or deliver across borders, this saves days of red tape and minimizes project delays.
The chemical industry isn’t static. Demands from environmental health and safety offices, international fuel standards bodies, and laboratory clients keep evolving. Historical reliance on generic hexane blends no longer fits research or fuel-blending needs. Early on, we saw limited requests for 2,3-Dimethylbutane; now, it’s a mainstay for developers chasing more realistic volatility profiles or engaged in benchmarking projects for alternative fuels.
Improvements have come not from grand overhauls but from collection and analysis of field failures—late shipments, off-profile volatility, or packaging weaknesses. Our own learning has come from owning mistakes, replacing substandard material at our own expense, and inviting regular audits by independent chemical analysts. Customers never forget a bad batch, and their technical feedback often shows us what our internal checks missed.
Supplier reliability means being quick to acknowledge and fix shortcomings. On the practical side, production schedules have shifted to favor made-to-order runs rather than speculative stockpiling. Lab-scale customers tend to require peak purity, so we now prioritize tighter purification, multi-redundant analytics, and thorough process documentation. For clients working with new engine designs or emission studies, we supply reference batches alongside their production volumes, enabling side-by-side validation and easing concerns about drift or outliers.
As more research pivots to green technologies or low-impact fuels, requests have focused on tailored impurity levels, carbon footprint documentation, and detailed records of process solvent use and recycling. While these steps increase the paperwork, they reflect genuine customer priorities and have enabled us to win orders where less transparent suppliers have struggled.
Every order for 2,3-Dimethylbutane pulls manufacturing teams into direct engagement with technical users. Over time, collaboration has become just as crucial as technical mastery of separation or purification. Longevity in this market comes from openness about process assumptions, regular review of client feedback, and nimbleness in problem-solving.
Some of the recurring issues faced by the industry—such as isomer confusion, sluggish logistics, or poor documentation—have prompted us to invest in both technical training for production teams and digital tracking systems for every batch. Real-time batch data logging, photographic evidence of container filling and sealing, and direct lines of communication to our analytical team have all proven invaluable. We view these as standard rather than deluxe services.
Emphasis on sustainability and workplace safety also shapes how we source precursors and maintain production. Regular hazard reviews and waste minimization audits aren’t just compliance exercises—they genuinely pinpoint risks that, if neglected, would undermine both worker safety and downstream quality. Many learnings have not come from texts or certifications but from observed incidents—valve handling mistakes, unnoticed leaks, or rushed bottling. Each event becomes fodder for updated best practices and direct communication with client safety reviewers.
Wherever research or industry trends take us, our commitment remains rooted in the experience gained on production lines, from late-night troubleshooting to early-morning analytical checks. We value customers most when they challenge our assumptions and bring practical knowledge from their end uses back into our process. 2,3-Dimethylbutane, like so many specialty organics, strikes its value from this continuous interplay of hands-on manufacturing and informed customer use.