© 2026 Sinochem Nanjing Corporation,
All Right Reserved
Curiosity has always pushed chemists to tinker with aromatic compounds, and o-dimethoxybenzene—also known as 1,2-dimethoxybenzene or veratrole—stands as a prime example of a substance carrying a rich backstory in industrial chemistry. In the early 19th century, advancements in organic synthesis paved the way for aromatic ether exploration, with veratrole preparation often traced to the pioneering era of synthetic dyes. As researchers chased the secrets of plant-based fragrances, it became clear that veratrole showed up in natural essential oils and served as a structural motif in countless biologically active compounds. Synthetic routes matured, and by the late 1800s, chemists had nailed down efficient ways to make it, driven by its value in fragrance chemistry and pharmaceutical work.
O-dimethoxybenzene brings something special to the table in laboratories and manufacturing plants. Its image as a laboratory reagent only scratches the surface. The compound pops up in classic organic reactions, flavor and fragrance blends, and as a key intermediate in the synthesis of fine chemicals. From the first whiff, its faintly sweet, woody scent gives away its connection to the natural world, speaking to how often it's found in plant extracts. At the same time, bulk material suppliers and fine chemical producers see it as an ingredient that bridges tradition and next-generation innovation, pointing to its flexibility and trustworthiness.
You can spot o-dimethoxybenzene as a colorless to pale yellow liquid, with a melting point just under room temperature and a boiling point well above 200 degrees Celsius. This distinctive volatility makes it manageable in most laboratory glassware and bulk handling operations. The methoxy groups protect the aromatic ring, giving veratrole a degree of chemical stability but also a surprising reactivity when the right catalyst comes along. Despite its pleasant aroma, the compound doesn’t play around in water—its low solubility in water and high solubility in organic solvents keep it tucked away from the aqueous world, favoring organic phase processes and specialty applications.
Quality standards for o-dimethoxybenzene have grown tougher with time, as applications demand higher purity and more consistent specifications. Industry expectations run toward low moisture content, sharp melting points, freedom from hazardous contaminants, and detailed traceability. Labeling regulations serve as a reminder that nobody gets a free pass when shipping or storing aromatic ethers, especially since purity drags down everything from reaction yields to health risk assessments. The push for tighter specs in laboratory and pharma settings signals just how closely regulatory authorities and industry watchdogs keep an eye on materials with broad application profiles.
Old-timers in the field remember classic synthesis procedures involving simple methylation of catechol using methylating agents like dimethyl sulfate or methyl iodide in a basic medium. As awareness around workplace safety and environmental stewardship grew, greener methods started gaining steam, such as methylating with dimethyl carbonate—offering reduced toxicity and a lighter environmental footprint. Solid acid catalysts sometimes play a role, helping chemists control byproduct formation and cut back on waste in the methylation process. Process optimization, often spurred by stricter emissions rules or pressure to cut down on hazardous material use, has transformed the synthesis of o-dimethoxybenzene from a classroom favorite into a model of efficient, scalable production.
O-dimethoxybenzene’s value extends beyond sitting passively on the shelf. Its aromatic core, activated by electron-donating methoxy groups, paves the way for a feast of electrophilic aromatic substitution reactions. Researchers regularly rely on veratrole as a substrate for forming more complex aromatic systems, particularly when designing advanced materials or pharmaceuticals that lean on the reactivity of the ortho-position. Beyond substitutions, oxidative coupling and demethylation can morph o-dimethoxybenzene into entirely new structures, showing its potential as a versatile starting block. This kind of structural flexibility also means the compound finds itself in retrosynthesis routes for natural products, building bridges between lab-scale curiosity and real-world impact.
This compound, often dubbed veratrole in both industry circles and plant biochemistry texts, also shows up in inventories as 1,2-dimethoxybenzene or ortho-dimethoxybenzene. European suppliers may even reference its CAS number instead of a name. This tangle of nomenclature serves as a nudge for chemists and procurement teams to double-check what exactly sits in that bottle on the stockroom shelf, especially when regulatory filings or shipping manifests come into play.
Veratrole belongs to a class of aromatic ethers that call for care in both small lab batches and ton-scale manufacturing. While it does not carry the immediate toxicity of some other aromatic derivatives, inhalation or skin contact risks cannot be ignored—especially since chronic exposure to similar aromatic compounds presents real hazards. Modern workplace standards require proper ventilation, personal protective equipment, and training for anyone working regularly with volatile aromatics. Spills and fire risk haunt organic ether storage, leading to detailed guidance on transport and warehousing. Companies moving toward tighter health and safety culture have led the way, nudging global operations to take aromatic ether risk management seriously, not just check off regulatory boxes.
Some forget just how broad the reach of o-dimethoxybenzene extends. A regular sight in fragrance chemistry, it works as a building block for flavors in synthetic vanilla and other food additives. Pharmaceutical companies see o-dimethoxybenzene as more than a reagent—it lands in synthesis schemes for antihistamines, antispasmodics, and other drug classes. Dye makers and polymer chemists use it as a precursor for complex aromatic compounds and monomers. In research circles, its structure often forms a baseline for aromatic substitution studies, and its presence in some plant metabolites spurs ongoing interest from natural product chemists and botanists alike.
Innovation keeps reshaping what’s possible with o-dimethoxybenzene. Researchers in organic synthesis take advantage of its electron-rich core to develop new coupling strategies, streamline total syntheses, and study substitution mechanisms. Analytical chemists have refined purity checks down to the parts-per-billion range using gas chromatography and mass spectrometry, which matters for quality assurance and toxicology work. Interdisciplinary work now sees veratrole at the intersection of green chemistry, seeking process improvements that save both cost and environmental impact. Industry consortia and university labs keep pressing for techniques that use less hazardous reagents and produce fewer emissions, raising expectations for new approaches in aromatic ether chemistry.
Decision-makers and lab workers both watch toxicity data closely, since confidence in material safety shapes how and where o-dimethoxybenzene shows up. Acute toxicity appears low compared to harsher aromatic ethers, but the picture gets more complex with long-term exposure. Inhalation risk exists, and cases of skin and eye irritation have prompted ongoing reviews of workplace guidelines. Animal studies signal moderate toxicity at high doses, though data remain less robust than for better-known aromatics. Regulatory agencies recognize gaps in chronic toxicity and environmental impact assessments, which serves as a reason to exercise caution and avoid complacency in large-scale or consumer-facing applications. Safety data sheets need to reflect changing evidence, not just stand as boilerplate text, so that real workplace risks get factored into training and process design.
Looking ahead, o-dimethoxybenzene stands on the edge of some exciting opportunities and real challenges. Green chemistry pushes new methods to reduce hazardous waste in its manufacture, as corporations and governments both demand smaller carbon footprints and lower toxicity byproducts. Advances in biotechnology hint at alternative production methods using engineered microbes, which could shake up traditional supply chains. Pharmaceutical and materials scientists are still exploring how strategic placement of methoxy groups on aromatic systems shapes biological activity and functional materials, so interest in veratrole as a starting material should not fade any time soon. That being said, expanding study into chronic toxicity and environmental persistence must keep pace with rising demand, so responsible development isn’t left as an afterthought. O-dimethoxybenzene’s journey traces the arc of chemical progress—from curiosity to staple, and now to potential linchpin in sustainable chemistry’s future.
O-Dimethoxybenzene, also known as 1,2-dimethoxybenzene or veratrole, finds its way into more everyday products than most people realize. It carries a distinct sweet-smelling aroma, which leads many perfume houses to use it as a core ingredient in fragrances. That sweet, woody base note often hiding under citrus or floral layers comes from this compound. Coming across it in the world of scents, it’s easy to notice how chemistry quietly shapes the perfumes sold in stores, influencing emotion and memory through smell.
Moving beyond perfumes, O-Dimethoxybenzene acts as a solvent and intermediate in organic synthesis. Chemists reach for it during the creation of pharmaceuticals, dyes, and some agricultural chemicals. It’s common to see this compound involved where methylation or selective functionalization is needed because of how the two methoxy groups react. In the pharmaceutical field, this molecule appears in the building blocks for antihistamines and drugs that treat nervous system disorders. Its ability to stabilize intermediates or respond predictably makes it valuable for synthesizing complex structures. The leap from pure research to practical products like allergy relief tablets depends on reliable molecules like this one.
In the dye and pigment industries, O-Dimethoxybenzene lends itself to the development of vivid colors. It helps craft more stable, longer-lasting shades that find a home in everything from fabrics to inks. Textile makers appreciate that stability, because it means clothes hold their color through many washes. Speaking from experience, anyone frustrated by a favorite shirt fading too fast can appreciate the chemistry that keeps it bright. There’s a deeper link between chemistry labs and the items in your closet than many realize.
As technology advances, O-Dimethoxybenzene surfaces in the world of materials science and electronic applications. Researchers explore its use in organic electronics and conductive polymers. Electronics manufacturers need materials that strike the right balance between flexibility, conductivity, and cost. Veratrole and its derivatives can help achieve that. This isn’t abstract—modern flexible displays, sensors, and even solar technology draw from research where molecules like this one play a wakeful role.
Every compound deserves scrutiny for safety. Handling O-Dimethoxybenzene without adequate precautions can cause irritation if it touches skin or eyes, and inhaling vapors is unpleasant. Industrial use, under proper workplace safety protocols, reduces risks for workers, but everyday consumers rarely encounter it in raw form. The Environmental Protection Agency and similar bodies in other countries keep a watchful eye on chemicals, demanding thorough review before they find broad use.
Its rapid breakdown in the environment and relatively low accumulation potential cut down on lasting harm. Independent studies confirm that with suitable disposal and control measures, the risk of environmental contamination remains low. Responsible manufacturing and transparent supply chains keep chemicals like O-Dimethoxybenzene from turning into a bigger concern. Companies investing in greener chemistry—finding safer solvents, minimizing waste—give the same benefits to workers, communities, and customers alike. Seeing projects that make small changes in chemical handling or switch to cleaner pathways reminds me just how often incremental improvements matter.
Demand for reliable, safe, and environmentally friendly chemicals continues to grow. Green chemistry isn’t a marketing buzzword; it’s a necessity. Researchers push to replace older syntheses with milder, less hazardous approaches. O-Dimethoxybenzene’s track record shows that with well-designed controls, a compound can fuel modern convenience without stirring up major problems downstream. That doesn’t mean the work is done. Every success opens new questions about sustainability, exposure, and long-term health. Pushing for safer substitutions and stricter safeguards doesn’t just protect the environment—it also supports communities and builds trust between researchers, industry, and consumers.
O-Dimethoxybenzene comes across as one of those aromatic compounds that chemists encounter frequently in research labs and even in the flavor and fragrance industry. Its molecular formula, C8H10O2, points to a benzene ring with two methoxy groups (-OCH3) attached. In this molecule, "O" means the substituents sit next to each other on the benzene ring. These days, textbooks usually label this as the “ortho” position. So, the methoxy groups bond at the 1 and 2 positions of the ring.
Chemists often care about the arrangement of groups on a benzene ring, because it affects how the molecule behaves. O-dimethoxybenzene, or 1,2-dimethoxybenzene, reacts differently from its cousins, meta- and para-dimethoxybenzene. This happens because electronic effects caused by those closely placed methoxy groups can nudge electrons around the ring, making it more reactive in certain spots and less so in others. In undergraduate labs, seeing these differences firsthand during electrophilic aromatic substitution experiments leaves an impression that lasts well past the final exam.
Lab experience isn’t the only context where o-dimethoxybenzene makes an impression. Synthetic chemists use it as a starting material for more complex molecules. It pops up in the making of dyes, pharmaceuticals, and sometimes even in creating flavors like those used in vanilla or smoky-sweet fragrances. Cultural knowledge, especially in perfumery, values the slight differences in aroma that substitution patterns bring. Just by shifting those methoxy groups from ortho to para, the scent changes. I once worked on a small fragrance project; moving a group by one carbon flipped the entire profile from sweet and subtle to sharp and medicinal.
Working with aromatic ethers like o-dimethoxybenzene does raise questions about safety. The chemical sees lots of use in controlled lab environments. Most folks don’t run into pure o-dimethoxybenzene at home, but as with many aromatic compounds, repeated unprotected exposure may cause health issues. Regulatory guidelines recommend gloves, goggles, and fume hoods. Reports from the National Institute for Occupational Safety and Health (NIOSH) encourage keeping exposure limits in mind.
Molecular structure breaks down further when using analytical tools like nuclear magnetic resonance (NMR) spectroscopy or infrared (IR) spectroscopy, helping scientists confirm the positions of methoxy groups. Safety relies on education: clear labeling on chemical containers, accessible safety data sheets, and encouraging new chemists to slow down and check PPE before handling. If companies substitute other compounds for o-dimethoxybenzene in flavor or fragrance development, testing remains key. Any new substance introduced to consumer goods deserves the same scrutiny, underscoring the value of chemical literacy among all who handle or encounter these materials.
The chemical structure of o-dimethoxybenzene offers a window into both the art and science of organic chemistry. It shows how a simple tweak gives rise to new synthesis pathways, unique fragrances, and flavors. For those who spend any amount of time in the lab or on the production floor, recognizing both opportunity and risk starts by understanding how every atom fits in place.
O-Dimethoxybenzene, also called 1,2-dimethoxybenzene or veratrole, often pops up in labs and in some industrial applications. This compound shows up in the manufacture of pharmaceuticals, dyes, and perfumes. It doesn’t turn many heads outside of research circles, probably because people come across it mostly behind the scenes, not as a consumer product.
In my days spent working around chemical storerooms, I learned quickly not to judge a compound just by a scary-sounding name or a whiff of aromatic ring structure. So, what’s the deal with O-dimethoxybenzene? Its structure gives off a sweetish, aromatic smell—similar to some garden flowers, but with a chemical twist that says, “handle with care.”
Digging into the data: O-dimethoxybenzene doesn’t appear on lists of highly toxic chemicals, but that doesn't mean it gets a free pass. According to the GHS (Globally Harmonized System), the primary risks come from its flammability and potential for irritation. A spill in a hot, crowded lab can catch fire quicker than dry leaves in summer. It evaporates into the air, and high concentrations start to irritate eyes, skin, and mucous membranes.
Trusting your nose or skin around chemicals leads to trouble. Even if a substance doesn’t boast a skull-and-crossbones, that skin-tingling after a splash means a story is forming under the surface. Short-term exposure to O-dimethoxybenzene seems manageable, and animal studies did not place it in the high-danger category. Chronic effects remain less studied. Long-term inhalation hasn’t been deeply tested, and nobody volunteers for that job. Respiratory irritation is real, and the safest labs go all out with glove protection and ventilation.
A key point from the EPA and NIOSH: There’s little record of O-dimethoxybenzene causing cancer in humans, but evidence is limited. This is a gap, not an all-clear signal—it simply means more work needs doing. Lab safety rules exist for precisely these cases—where harm isn’t obvious, but unknowns hang in the air like static electricity.
I remember my first chemical safety training and the lesson stuck: treat every spill or splash as a direct threat, log all exposures, and never guess about toxicity. Product safety sheets always spell out proper handling—goggles, nitrile gloves, fume hood. Those vented hoods are not negotiable. Plenty of people cut corners until an accident sets them straight.
Some worry about environmental impacts, too. O-dimethoxybenzene breaks down in the environment, but this process takes time. Water treatment plants and local wildlife don’t react well to sudden spikes in synthetic organic compounds. Extra caution keeps industrial effluent from fouling streams downstream in a town, or from entering the air in crowded neighborhoods.
Routine hazard training prevents most accidents with chemicals like O-dimethoxybenzene. Good practice leans on facts: use proper storage, tight lids, cool rooms, and working ventilation. Spills should trigger immediate containment—chem folks rely on spill kits and quick communication. Waste needs secure disposal, never dumped down the drain.
If questions come up—“What do I do with this leftover compound?”—the smart answer calls for checking local regulations and consulting safety data. Treating every chemical with healthy skepticism and respect doesn’t just save red tape—it protects hands, lungs, jobs, and sometimes much more.
O-Dimethoxybenzene, often flagged in chemical catalogues for its aromatic qualities, crops up in a bunch of lab settings—some days, that’s in research, other days in the world of perfumery or even for synthesizing more complex molecules. Having worked around plenty of bench chemicals, I’ve learned that many overlooked substances, like this one, demand some serious respect on the shelves.
Fresh from the supplier, O-Dimethoxybenzene comes as a white solid. Tossing it onto the shelf next to the acetone or the methanol might seem harmless, but heat and harsh light can nudge its composition over time. Heat usually speeds up those slow changes in the jar, leading to potential degradation or, worse, creating pressure in airtight bottles. Tossing the container in a cool, shaded part of a chemical cabinet keeps it stable for the long haul. Most lab folks trust temperatures below 25°C. If you’ve ever pulled out an old bottle that’s yellowed or chunked, heat crept in somewhere.
O-Dimethoxybenzene holds up better than a lot of compounds, but humidity still finds a way. While it isn’t one of those viciously hygroscopic powders, moisture over time leads to clumping and purity loss, especially in open labs in the summer. Tightly screwed lids—nothing fancy, just a solid seal—and use of desiccants like silica gel packets keep problems at bay for months.
I’ve seen researchers tuck bottles of O-Dimethoxybenzene inside sealed zip bags or Tupperware-style bins if the summers turn muggy. Labs with air conditioning have an easier time, but not everyone gets that luxury in older facilities.
On cluttered shelves, compatibility slips minds. Storing O-Dimethoxybenzene with oxidizers, strong acids, or alkali metals invites disaster. Old stories about jug explosions and melted plastic remind us that organic ethers and oxidizers don’t share neighborhoods. Instead, keeping O-Dimethoxybenzene on shelves with comparable aromatics or ethers keeps things peaceful and avoids unintended reactions.
I once caught a storage mix-up at a teaching lab, where sodium metal and aromatics were neighbors. Sharp eyes and common sense separated them before anything went wrong.
No matter the workload, forgetfulness on personal protective equipment always courts trouble. O-Dimethoxybenzene irritates skin and eyes. Gloves and goggles, plus a splash of good ventilation, save everyone from headaches and skin rashes. If someone plans to make solutions or handle this powder for a while, fume hoods keep vapors and dust out of lungs. One oversplash near the eyes can ruin a whole afternoon, so goggles never stay on the shelf.
Even in high-performing labs, labels fade or go missing. Permanent markers, clear hazard labels, and legible dating shed light on the contents and expiration. Clean-up days—say, once a season—catch leaky lids, jar cracks, or contamination that might otherwise turn into expensive mistakes.
Don’t dump O-Dimethoxybenzene down the drain, no matter how small the leftover. Collection in proper hazardous waste streams, following local guidelines, prevents groundwater contamination and meets compliance. It’s tempting to rush, but one violation can ruin a whole department’s year and expose others to fines or legal trouble.
O-Dimethoxybenzene, sometimes called 1,2-dimethoxybenzene or veratrole, catches the interest of researchers, students, and even artists tinkering with dyes or perfumes. Most questions about buying it stem from its role in chemistry laboratories and certain niche industries. Before typing your credit card number into a random website, there’s a crucial question: what will you really use it for, and how will you keep yourself and others safe?
Lab supply companies like Sigma-Aldrich, Fisher Scientific, and TCI America list O-Dimethoxybenzene. Businesses and institutions with commercial accounts tend to have little trouble ordering in bulk, as these distributors require clear identification and often restrict sales to professionals. Retail options pop up on auction or specialty chemical platforms, but reliable sources want to see credentials. Some sites might advertise a few grams for individuals, but most reputable ones will ask for a business address, a tax ID, or evidence of lab affiliation. This protects everyone from legal headaches and encourages responsible use.
Major platforms make it clear which products are in stock and post detailed safety sheets. This helps buyers know exactly what they’re getting. I’ve heard stories from colleagues who mistakenly ordered chemicals from overseas resellers, only to get delayed shipments or poorly labeled bottles that didn’t match the description. Trust and traceability matter in this world.
Folks looking at O-Dimethoxybenzene often come across cautionary messages. There’s a reason. The uses for this chemical mostly fall within research, pharmaceuticals, and specialty synthesis. Some regulations list it as a “precursor” for certain sensitive reactions. Both sellers and buyers carry responsibility. Unregistered resellers and grey-market exchanges pose risks, not just for poor quality but for legal violations and environmental hazards.
No matter your project, a chemical supplier with a documented track record provides more than just a bottle of liquid—they give you a supply chain that connects to ethical sourcing and safe handling. Take the time to check if suppliers stand up to scrutiny. Safety data sheets (SDS) and customer reviews offer useful transparency. It’s tempting to grab a bargain online, but safety and legality should come first every time.
Universities, research labs, and legitimate businesses source O-Dimethoxybenzene from established chemical vendors. Direct outreach sometimes bears fruit if you're an accredited student or researcher. Some suppliers accept smaller orders but request proof of your intended use and institution. People new to chemical purchases might look for shortcuts, but reputable dealers stick to strict policies—this keeps everyone safer.
Local chemical distributors sometimes offer pickups or local delivery, which helps when time is short and shipping costs are high. A good supplier will have phone and email support ready; they want you to use their products responsibly and to get help quickly if things go wrong.
O-Dimethoxybenzene sits in the toolkit of professionals committed to safe discovery. If you’re in a teaching lab, a commercial research facility, or an established business, start with the brands known for compliance. Check reviews, call their reps, and ask for references. Shortcuts with chemicals rarely pay off. For everyone’s sake—yours, your coworkers', and your community’s—stick to the right channels and always put safety first.
| Names | |
| Preferred IUPAC name | 1,2-Dimethoxybenzene |
| Other names |
1,2-Dimethoxybenzene Veratrole |
| Pronunciation | /ˌoʊ.daɪˌmɛθ.ɒk.siˈbɛn.ziːn/ |
| Identifiers | |
| CAS Number | 91-16-7 |
| Beilstein Reference | 835742 |
| ChEBI | CHEBI:8093 |
| ChEMBL | CHEMBL14302 |
| ChemSpider | 5099 |
| DrugBank | DB01645 |
| ECHA InfoCard | 100.040.776 |
| EC Number | 201-963-1 |
| Gmelin Reference | 60719 |
| KEGG | C01586 |
| MeSH | D003249 |
| PubChem CID | 8459 |
| RTECS number | KL3325000 |
| UNII | 8O2S36EJ1Q |
| UN number | UN2261 |
| CompTox Dashboard (EPA) | DTXSID3020036 |
| Properties | |
| Chemical formula | C8H10O2 |
| Molar mass | 138.16 g/mol |
| Appearance | Colorless liquid |
| Odor | aromatic |
| Density | 0.866 g/cm³ |
| Solubility in water | insoluble |
| log P | 1.68 |
| Vapor pressure | 0.19 mmHg (25°C) |
| Acidity (pKa) | 15.0 |
| Basicity (pKb) | −4.90 |
| Magnetic susceptibility (χ) | -64.5·10⁻⁶ cm³/mol |
| Refractive index (nD) | 1.542 |
| Viscosity | 1.329 cP (25°C) |
| Dipole moment | 1.55 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 246.0 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -196.2 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | -3145.0 kJ/mol |
| Hazards | |
| GHS labelling | GHS02, GHS07 |
| Pictograms | GHS02, GHS07 |
| Signal word | Warning |
| Hazard statements | H302, H315, H319, H335 |
| Precautionary statements | P261, P264, P271, P272, P273, P280, P302+P352, P305+P351+P338, P321, P332+P313, P337+P313, P362+P364 |
| NFPA 704 (fire diamond) | 1-1-0 |
| Flash point | 76 °C |
| Autoignition temperature | 482 °C (900 °F; 755 K) |
| Explosive limits | Explosive limits: 1.1–6.4% |
| Lethal dose or concentration | LD50 (oral, rat): 2820 mg/kg |
| LD50 (median dose) | LD50 (median dose): 2680 mg/kg (rat, oral) |
| NIOSH | SN 8750000 |
| PEL (Permissible) | Not established |
| REL (Recommended) | REL: 10 ppm |
| IDLH (Immediate danger) | Not established |
