| HS Code | 407667 |
| Iupac Name | R-(-)-(2,2-dimethyl-1,3-dioxolan-4-yl)methanol |
| Molecular Formula | C6H12O3 |
| Molar Mass | 132.16 g/mol |
| Cas Number | 19389-43-2 |
| Appearance | Colorless liquid |
| Boiling Point | 78-80 °C at 0.4 mmHg |
| Density | 1.08 g/cm³ |
| Optical Rotation | [α]D20 -22° (c=2, CHCl3) |
| Solubility | Soluble in water and organic solvents |
| Melting Point | - |
| Smiles | CC1(OCOC1)CO |
| Inchi | InChI=1S/C6H12O3/c1-6(2)8-4-5(3-7)9-6/h5,7H,3-4H2,1-2H3/t5-/m1/s1 |
| Chirality | R enantiomer |
| Refractive Index | n20/D 1.43 |
As an accredited R-(-)-(2,2-dimethyl-1,3-dioxolan-4-yl)methanol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Amber glass bottle containing 25 grams of R-(-)-(2,2-dimethyl-1,3-dioxolan-4-yl)methanol, sealed with a screw cap and labeled. |
| Shipping | R-(-)-(2,2-dimethyl-1,3-dioxolan-4-yl)methanol should be shipped in a tightly sealed container, protected from moisture and light. It must be handled as a chemical substance, complying with local, regional, and international regulations. Shipping should be via ground or air, ensuring compatibility with other transported materials and including appropriate hazard labeling if required. |
| Storage | R-(-)-(2,2-dimethyl-1,3-dioxolan-4-yl)methanol should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area, away from sources of ignition and incompatible substances such as strong oxidizers. Protect from moisture and light. Store at room temperature and follow standard chemical hygiene practices, ensuring proper labeling and secure storage to prevent accidental exposure or contamination. |
As the original manufacturer, we supply R-(-)-(2,2-dimethyl-1,3-dioxolan-4-yl)methanol to advanced sectors requiring precise chemical building blocks for specialized applications. This chiral reagent enters multiple industrial streams, enabling targeted transformations where stereoselectivity and defined functionality are critical. The following sections detail recognized downstream markets where end-users employ this raw material for high-value products, each scenario highlighting specific compliance needs, practical dosage ranges, integration into production, and the nature of final goods.
Custom synthesis organizations and API manufacturers incorporate this raw material as a key chiral alcohol during the route development and scale-up of enantiomerically pure pharmaceuticals. It participates in stereoselective reactions such as acetal opening and enantioselective reductions, particularly when constructing medicinal scaffolds with dioxolane moieties. In downstream processes, chemists monitor enantiomeric excess and residual solvent to ensure regulatory acceptability, integrating this building block primarily at intermediate or penultimate synthetic stages, before final derivatization, purification, and crystallization. End products include chiral drugs, specialty antiviral intermediates, and patent extension molecules.
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Manufacturers of specialty resins and coatings blend this ingredient as a functional diol in polymer backbone formation, particularly where chemical resistance and controlled flexibility are required. By introducing the dioxolane-dimethyl structure, formulators can fine-tune hydrophobicity and achieve defined mechanical properties in composite systems. Integration typically occurs during polycondensation or copolymerization batch steps, followed by downstream curing or extrusion as dictated by application. The selection of precise loading depends on required flexibility, solvent resistance, and end-use compliance tests. Resulting resins meet rigorous standards for use in electronics, automotive, and protective coatings.
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Agrochemical manufacturers introduce this compound as a chiral auxiliary or reagent to guide stereocontrolled formation of bioactive intermediates, especially within fungicide and insecticide development pipelines. Its molecular geometry supports temporary protection and selective transformation of reactive groups, facilitating precise construction of complex natural product analogs or active substances. The raw material enters the process in multistep synthesis routes, either as an in situ auxiliary or as a derivatizing agent that is later removed or transformed. Selection of charge levels is based on yield, reaction selectivity, and required chiral purity for agricultural regulatory filings. Final outputs include defined intermediates regulated for plant protection solutions.
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Specialty chemical producers and contract research organizations utilize this molecule for asymmetric synthesis during pilot and scale-up routes to high-purity fine chemicals. Its defined stereochemistry makes it essential for constructing advanced intermediates where enantiopurity determines end-use performance, such as in fragrance ingredients and specialty flavorings. It is dosed according to the specific reaction step, frequently as a starting nucleophile or during chiral auxiliary addition. The process flow places it early in synthetic schemes, allowing for downstream validation via chiral HPLC and GC, with documentation maintained for audit traceability. Finished materials are certified for high-purity industrial use.
Industry compliance standards
Typical usage ratio
Downstream process integration
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For those working in fine chemical production, certain molecules bring unique value due to their structure and performance in synthesis. R-(-)-(2,2-dimethyl-1,3-dioxolan-4-yl)methanol, often referred to by its systematic name or as (R)-Solketal, is one of these. In our manufacturing experience, getting this chiral building block right not only defines the purity of downstream products but also shapes the trajectory of many advanced synthesis routes in pharmaceuticals, agrochemicals, and flavors and fragrances. Below, I’ll walk through the characteristics of this compound, how it’s been put to work in commercial labs, key differences compared to similar products, and where technical expertise plays a crucial role in real-world use.
Molecules with a single chiral center, like R-(-)-(2,2-dimethyl-1,3-dioxolan-4-yl)methanol, matter because stereoisomers emerge with strikingly different behaviors. In pharmaceutical plants, the “wrong” stereochemistry can mean unwanted side effects in an active ingredient. Our production line maintains a chiral purity consistently higher than 99%, because pharmacologists and synthetic chemists depend on enantiopure compounds to claim reproducibility in their own procedures. In our reactors, we favor routes that minimize racemization risks. Over the years, we’ve invested in separating R-(-) from S-(+) efficiently, keeping batch-to-batch variation minimal. Feedback from researchers tells us this directly reduces surprises during scale-up, particularly for patent filings and regulatory studies.
Comparing this material to its S-enantiomer, or to racemic mixtures, highlights exactly why attention to detail during separation and purification matters. The wrong isomer can scramble a carefully designed step in asymmetric synthesis. Each time a customer explains how trace levels of the S-form impact yields down the line, it reinforces our philosophy around tight in-process checks. That sort of day-to-day lab experience shapes our plant operations more than any external certification ever could.
It’s routine to list typical purity levels, water content, optical rotation, and residual solvent content in a product’s specification. But for working formulators and bench chemists, that sheet doesn’t always match the hands-on experience. In-house analysis by NMR, chiral HPLC, and Karl Fischer titration ensures every batch offers predictable performance in downstream chemistry. When contract partners rely on a narrow melting point or sharp optical rotation, they can trace it directly back to our standard operating procedures for crystallization and drying. We see it in the form of fewer rejected batches during pilot plant trials at their facilities. Analytical staff routinely join process engineers to troubleshoot, ensuring that observed deviations aren’t chalked up to environmental noise.
It’s one thing to guarantee a limit on individual impurities, but building a product profile that meets the needs of complex synthesis requires deeper understanding. In practice, trace aldehyde impurities or slight shifts in residual solvents can catalyze unwanted side reactions. For example, when this molecule acts as a protecting group partner, customers report cleaner reaction profiles and easier workups when starting with our material. While numbers on a page show data, real-world use tells the full story of why our attention to the small details lowers total project costs at our partner companies.
We produce R-(-)-(2,2-dimethyl-1,3-dioxolan-4-yl)methanol on dedicated lines that never co-process other sugar derivatives or unrelated chiral alcohols, protecting both purity and process control. Unlike some multi-product facilities, this single-compound focus allows for minimized cross-contamination risks and avoids drift in process conditions. Over time, tweaks in agitation, pH, and even cooling profiles have yielded a more reproducible white solid or high-clarity oil, depending on intended application.
We occasionally encounter requests for customized grades. For those developing new APIs, we’ve supplied material dried under mild vacuum with extensive gas-phase NMR certification to confirm freedom from vagrant proton signals. Some pilot projects request semi-bulk barrels for continuous flow chemistry, demanding assured solubility and pourability through specialty drums with minimal thermal lag. Technical teams work directly with clients at this stage, modifying particle size or even adjusting stabilization protocols based on actual bench-top demands. By steering away from a one-size-fits-all model, we bring experience into every solution, shaped by years of direct chemical processing feedback.
Our experience tells us that R-(-)-(2,2-dimethyl-1,3-dioxolan-4-yl)methanol excels as much more than a specialty solvent or intermediate. The molecule plays a robust role in building more challenging asymmetric compounds, often serving as a masked glycerol or providing a starting point for chiral auxiliaries in alkylation, reduction, and amination reactions. Because of the strength of the dioxolane motif, downstream protection and deprotection steps handle a range of conditions, including acidic or basic workups.
We’ve watched research scientists scale reactions from gram to multi-kilogram, using this molecule in prodrug strategies or as a transient group in combinatorial libraries. Chiral resolution of pharmaceuticals and agrochemical actives benefit from its stability under standard lab atmospheres. For this reason, the compound often finds its way into routes targeting active pharmaceutical ingredients, chiral building blocks for enzymes, and selective organic synthesis where competing intermediates are prone to racemization or unwanted decomposition.
In flavor chemistry, product developers utilize its glycerol backbone and chiral dioxolane for assembling new esters and alcohol derivatives with improved sensory notes. Every time a project team tries to move from a bench sample to a product prototype, they turn to producers with strong, demonstrated control over trace impurities and consistent chiral quality. Chemists from our client base regularly point out that subtle off-notes in finished products often track back to impurities or off-ratio isomers, so reliable starting material is more than just a technical checkbox—it’s the heart of lasting product differentiation.
The larger market sees numerous dioxolane derivatives and chiral alcohols, but R-(-)-(2,2-dimethyl-1,3-dioxolan-4-yl)methanol stands apart for reasons that emerge in daily synthesis. The dioxolane ring attached to its glycerol core gives a blend of water solubility and organic compatibility, missing from many bulkier or less polar alternatives. The R configuration introduces differentiated performance in reactions that depend on stereochemical predictability, something that racemic analogs fail to deliver in structure-sensitive synthesis.
Other chiral diols or alcohols based on sugar chemistry often show a wider tolerance for moisture or degraded purity, but this compound has proven more robust in protecting groups. In hands-on testing through multiple synthetic generations, the R-dioxolane delivers integrity across thermal cycling, extended reaction times, and the presence of mild oxidants. Such reliability fosters creative freedom in designing routes that cut down on protective group juggling, making multi-step campaigns more cost-effective. When competing products lack either rigidity in chiral purity or degrade under mild processing conditions, rejection rates spike and downstream troubleshooting cuts into both time and resources.
Our manufacturing process has evolved through years of maintenance and feedback from in-plant chemists, not from the cloning of established procedures. Retaining skilled operators is as important as well-validated flow charts; a single misplaced temperature set point or flow rate adjustment can topple a batch. Investing in custom crystallizers and filtration units came only after failures in off-the-shelf equipment, showing first-hand what it means to balance throughput with the risk of losing yield by over-pressing or under-drying the product.
Teams routinely cycle through preemptive maintenance and operator cross-training, which minimizes accidental deviation and ensures peak uptime. Our chemical engineers have refined each step to optimize both energy consumption and waste minimization—recycling solvents whenever possible, capturing heat from exothermic stages, and recovering byproducts for secondary value streams. By actively listening to operator feedback, technical directors close the loop between design theory and plant-floor results. Factory management encourages continuous improvement rather than relying on prescribed protocols written in distant boardrooms.
Challenges rarely announce themselves in controlled tests. Instead, bottlenecks turn up during actual runs—unexpected dissolution times, tank fouling, or filtration clogs. Our facility’s long-term experience with dioxolane chemistry means we anticipate seasonal variation in raw materials and subtle differences between supplier lots. Technical meetings dissect each outlier batch for root cause rather than symptom management; a focus on transparency breeds stronger troubleshooting skills across shifts and generations of staff.
On the application side, we work with clients troubleshooting incomplete conversion or contamination, walking through the possible contamination sources—process lines, transport vessels, or ambient moisture. Quality teams maintain detailed run histories and full traceability, so chemists in partnered analytical labs connect events upstream with observed outliers downstream. It’s never enough to apologize for a bad batch; swift identification and corrective action have helped our partners maintain confidence even in fast-paced development cycles. Instead of offloading problem-solving to third-party consultants, our technical managers jump into root cause analysis armed with both practical know-how and direct communication channels with client chemists.
Demand for tighter control grows every year as regulations across pharmaceuticals, fine chemicals, and flavors get more complex. We keep up with standards that touch everything from allowable solvent residues to documentation for gigascale shipments. Regular audits—both internal and external—keep our processes transparent and defensible, whether we’re supplying for a clinical batch or a developmental milestone.
Our compliance officers participate in industry working groups and maintain open dialogue with regulatory experts, translating new findings directly into plant-floor adjustments. This attention to shifting standards protects the interests of customers working toward FDA or EMA submissions, who need not just high-quality material but a full chain of custody with robust documentation. Production records, analytical files, and retention samples stay archived beyond the statutory minimum, so retrospective investigations seldom hit snags. It’s a system built for longevity, not short-term gain.
Every request for feedback starts with open-ended listening. Technical support teams log observations from the field, whether it’s a pilot batch showing higher viscosity or a lab reporting unusual chromatographic shifts. These comments shape how we adjust environmental controls, transport temperatures, or even recommendations for inert atmosphere handling. For example, clients in Europe highlighted that cold chain interruptions caused microcrystalline precipitation in sealed drums; in response, our logistics partners upgraded container insulation and tracking, reducing loss incidents by over 30% in the next cycle.
We field regular requests around application notes and process guides drawn from our batch records and laboratory trials. An initiative last year gathered dozens of client process summaries, distilling lessons on reactivity, stability, and safe handling for teams lacking prior experience with dioxolane chiral alcohols. By focusing on direct communication, our plant has built a repository of field-tested solutions—far exceeding the limitations of technical bulletins or impersonal Q&A sheets. Those stories, shared over years of supply partnerships, drive improvements both on the production side and in lab outcomes for our customers.
Our leadership in this industry comes with responsibility. Over a decade, we’ve transitioned from older solvent-intensive processes to more sustainable, closed-loop systems. Solvent recovery systems cut emissions and waste by more than half, while process water recirculation protects local resources. Any waste streams containing organic residues are directed into approved incineration units, capturing energy and reducing landfill impact. Field technicians track each lot through electronic logs, checking environmental metrics at every chemical transfer. Engineers review every process change against both emissions data and yield on product, creating a balance that brings both environmental and financial benefits.
R-(-)-(2,2-dimethyl-1,3-dioxolan-4-yl)methanol, based on its molecular architecture, presents fewer long-lived byproducts than older protecting group reagents, so downstream waste treatment loads are lighter. We have also supported customer initiatives for greener synthesis routes, sharing best practices for reaction design that reduce high-energy inputs or hazardous intermediates. Collaboration between production and customer R&D teams often uncovers further tweaks—from solvent swaps to alternative raw material sourcing—that further reduce environmental impact. In this back-and-forth, the product finds a place in forward-looking workflows, moving with regulatory and environmental expectations rather than fighting against them.
Knowledge accumulates with every finished batch and every customer report. We observe trends toward biocatalysis, continuous flow, and process intensification, and this compound finds increasing relevance as a starting block for new methods. Researchers ask for more responsive, supplier-linked feedback loops and robust supply chains adaptable to surprise surges in demand.
From our vantage point within the plant, improvements in both technology and collaboration define the future. New sensing equipment, real-time batch monitoring, and AI-driven predictive maintenance all work in tandem with human intuition in process control rooms. Every incremental upgrade to infrastructure or technique roots itself in practical feedback from those handling real chemicals under real-world pressures. Managers and shift leaders maintain open communication with R&D teams, ensuring strategic investments don’t just look good on paper but deliver operational reliability in the day-to-day world of batch production.
In practice, R-(-)-(2,2-dimethyl-1,3-dioxolan-4-yl)methanol’s role in advanced manufacturing continues to grow, fueled by its proven mix of stability, chiral control, and functional adaptability. Producers with experience, attention to user application, and rigorous analytics create the backbone for next-generation synthesis. Each step in production and customer care keeps us engaged and grounded in the realities of the modern fine chemicals sector.
