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HS Code |
922578 |
| Cas Number | 4674-50-4 |
| Iupac Name | 4a,5,6,7,8,8a-hexahydro-3,6,8,8-tetramethyl-1(2H)-naphthalenone |
| Molecular Formula | C15H22O |
| Molecular Weight | 218.34 g/mol |
| Appearance | Colorless to pale yellow liquid |
| Odor | Grapefruit-like, woody, citrus |
| Boiling Point | 244–247 °C |
| Solubility In Water | Insoluble |
| Density | 0.940 g/cm³ at 20 °C |
| Flash Point | 100 °C |
| Melting Point | −15 °C |
| Source | Extracted from grapefruit and other citrus oils |
As an accredited Nootkatone factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Nootkatone is packaged in a 25g amber glass bottle with a tamper-evident cap, labeled with hazard symbols and handling instructions. |
| Shipping | Nootkatone is typically shipped in tightly sealed, chemical-resistant containers to prevent contamination and evaporation. It should be stored and transported in a cool, dry environment, away from direct sunlight, heat sources, and incompatible substances. Compliance with local and international regulations is necessary, and appropriate hazard labeling and documentation must accompany the shipment. |
| Storage | Nootkatone should be stored in a tightly sealed container, away from direct sunlight, heat, and oxidizing agents. Keep it in a cool, dry, and well-ventilated area, ideally at temperatures between 2–8°C (refrigerated). Protect from moisture and incompatible substances. Proper storage ensures stability, prevents degradation, and maintains the compound's purity and efficacy for intended use. |
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Purity 98%: Nootkatone 98% purity is used in flavor enhancement for citrus beverages, where it provides a potent grapefruit aroma and improves sensory profile consistency. Molecular Weight 218.34 g/mol: Nootkatone with molecular weight 218.34 g/mol is used in pest control formulations, where it delivers rapid knockdown of mosquitoes and ticks. Stability Temperature up to 60°C: Nootkatone stable up to 60°C is used in personal care products, where it maintains fragrance profile under storage and use conditions. Particle Size <10 microns: Nootkatone with particle size below 10 microns is used in microencapsulated powders, where it enables efficient controlled release in dry beverage mixes. Hydrophobic Index 0.7: Nootkatone hydrophobic index 0.7 is used in oil-based cosmetic emulsions, where it enhances solubility and uniform distribution of active fragrance compounds. Melting Point 33-35°C: Nootkatone with melting point 33-35°C is used in solid air freshener matrices, where it provides stable incorporation and slow vapor-phase dispersion. Solubility in Ethanol 50g/L: Nootkatone with solubility in ethanol at 50g/L is used in alcohol-based perfumes, where it ensures homogeneous fragrance blending and minimizes sedimentation. UV Stability up to 300 nm: Nootkatone UV stable up to 300 nm is used in outdoor insect repellent sprays, where it resists photodegradation and prolongs active protection. |
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Nootkatone feels a bit like a secret ingredient hiding in plain sight. Most folks first run into its tangy, bright punch in the sharp scent of grapefruit or the gentle zest in Alaskan yellow cedar. In my own home, the kitchen livens up when I bring out a bottle of sparkling grapefruit soda, and that heady, citrusy fragrance that hits my nose is pure nootkatone. It’s a molecule that brings both flavor to foods and a natural kick to personal products. Still, what’s impressive about nootkatone isn’t just how it tastes or smells; it’s the work it’s quietly doing behind the scenes, especially in the field of pest control.
Today, science and industry focus on nootkatone produced through fermentation, which leads to reliably pure, food-grade quality. This isolation creates a technical-grade material for use as both a fragrance and an active component. In its concentrated form, nootkatone comes as a colorless or pale yellow liquid—think of a fresh slice of grapefruit, minus the sticky juice. Its boiling point hovers above 300°C while the density sits comfortably in the range familiar to most volatile oils. The important part for anyone planning to use it at scale, whether for food flavoring or repellency, is the high purity and the distinct, lasting scent and taste. I’ve met formulators who choose nootkatone to sidestep the bitter aftertaste that plagues some synthetic citrus notes. The comfort in knowing exactly which version of the molecule you’ll receive, down to the stereochemistry, reduces batch-to-batch surprises and extra lab work.
Long before nootkatone earned official recognition, people experimented with it in small-batch soaps, garden sprays, and drink flavoring. In recent years, though, the landscape shifted. Regulatory bodies cleared nootkatone-based products for use against ticks, mosquitoes, and other biting pests. The story really took off after the CDC and EPA began talking about its low toxicity for humans and pets and the way it dodges the resistance that plagues synthetic pesticides. Out in the yard, parents want safer options for their families. Moms at soccer practice, couples on hiking trails, skittish dog owners—they all started to look for sprays where nootkatone stands out on the label.
Spritz a nootkatone-based repellent on your skin, and you’ll notice a faint citrus note but, more importantly, relief from swatting. A walk through tall grass or a weekend fishing beside a pond offers fewer interruptions from mosquitoes and black flies. Landscapers now favor products with this ingredient, trusting that regular exposure won’t harm them or the environment. In my own experience, after years of using harsh repellents that built up on my hands and gear, the switch to a solution based on a simple grapefruit molecule felt like stepping into the future—and leaving headaches and sticky skin behind.
Traditional repellents, especially those containing DEET, work well but carry baggage. The smell alone takes me back to summer camps packed with warnings: “Don’t spray that near your tent, it’ll melt the fabric!” No one misses the stinging sensation if a drop hits a scrape or the taste that lingers on your sandwich because you forgot to wash your hands. Nootkatone changes that. This compound doesn’t eat away plastic or rubber and doesn’t leave an oily film. Its mode of action also sets it apart: it interferes with the nervous systems of insects in a way that avoids the fatigue and adaptation seen with classic pesticides.
The issue of resistance can’t be overstated. After decades of heavy rotation, pyrethroids and organophosphates meet mosquitoes that shrug them off. Nootkatone comes at them from a new angle. Scientists, including folks from CDC, confirmed that pests haven’t built up defenses against it, at least not yet. This resets the board, giving communities battling West Nile or Lyme disease another shot at protection.
On the other end of the spectrum, natural repellent fans often lean on essential oils like citronella, lemongrass, or peppermint. Nice on paper, but these fade fast—they work in the first hour, maybe, if the sun isn’t too bright. Nootkatone holds steady over time, providing effectiveness that doesn’t vanish halfway through the hike. You get the peace of mind that comes from a reliable shield without the greasy mess.
Parents, pet owners, and schools share a common worry: how will another round of chemical sprays affect the people and animals under their roof? With nootkatone, regulatory agencies set their standards based on solid toxicology studies. So far, the data on skin irritation, toxicity, or environmental harm reads clean. The EPA’s risk assessment found low likelihood of allergic potential, so families with sensitive kids appreciate the switch. Environmental groups keep an eye on breakdown products and persistence; early research shows that nootkatone naturally degrades without sticking around to cause problems downstream.
Anyone who grew up near fields sprayed with synthetic pesticides remembers the bitter tang in the air or fish kills after a big rain. The move toward an ingredient sourced from renewable raw materials means a less polluted backyard and rivers that don’t run silver. Nootkatone speaks to that concern, made through fermentation from sugarcane or citrus leftovers, rather than mining or complicated organic synthesis. Large brands and cottage businesses alike see a dependable product that can scale up without draining fragile ecosystems.
Chefs and flavorists treasure nootkatone as a rare citrus note that doesn’t overpower. Bite into a gourmet chocolate or sip a high-end craft beer; if you catch a whiff of sharp, woodsy grapefruit, there’s a good chance you’re tasting this compound. In the world of food, artificial flavors fall flat fast. Natural nootkatone restores complexity to low-cal sodas or teas without dumping in sugar or acids that mask other flavors. That small, rounded kick works wonders in salad dressings, yogurt, or hard candies, where it lets other ingredients shine rather than drowning them. The tiny effective dose also keeps cost lower for producers and calories down for consumers.
Bakeries and breweries take to nootkatone for its stable aroma lasting through high heat or aging. Unlike other citrus elements, its structure resists breakdown, so cakes and fermenting hops keep their edge. I’ve watched pastry chefs fuss with zest and peels, chasing that elusive note that commercial extracts smear into sticky sweetness. A few drops of refined nootkatone, and the flavor sings.
The last decade brought breakthroughs in how nootkatone is made and delivered. Biotech firms gave up on the slow slog of squeezing it from rare cedars and bitter grapefruits. They turned to engineered bacteria or yeast, programmed to spit out consistent yields. This brings down cost and guarantees purity, so scale-up becomes possible without stripping forests or running up prices for everyone else. With fermentation methods, seasonal shortages stopped mattering, and producers could answer big orders quickly.
As shoppers get more savvy about labels, there’s no hiding behind chemical codes or vague terms like “natural essence.” Businesses using nootkatone aim for transparency: you know how it’s made, where it comes from, what’s in the bottle. Trust matters more than slick marketing. In my family’s kitchen, we look for products that explain their choices and sourcing—nootkatone impresses not just for effectiveness but for the story behind each drop.
Formulators in personal care rival high-end fragrance houses in getting things right. Nootkatone’s stability in creams, deodorants, and rinses means it stays fresh longer without synthetic stabilizers. It blends well with other notes but rarely dominates. A bar of soap can keep its top note, and a lotion doesn’t sour over time.
As with any ingredient that breaks tradition, myths and questions arise. Some folks suspect that if something comes out of a lab, it isn’t “really” natural, even if the source material starts in a fruit or tree. Yet most regulatory science now sees the method as less important than the molecule and the story of its journey from sugar molecule to safe jug on a store shelf.
The price compares favorably to stubbornly expensive essential oils or rare synthetic alternatives. Critics sometimes point out that, because it’s new for household use, few long-term studies exist on everyday human exposure. Parents or gardeners testing a new product ask about safety, which reflects a healthy skepticism. Honest brands supply documentation, not fuzzy promises.
Other users worry about performance in extreme conditions. Hunters and hikers share stories about “nothing working in deep woods at dusk.” Here, user trials and feedback keep manufacturers honest. If someone gets chewed up by bugs despite promises, word travels fast. But real-world testing—on weekend warriors and professional field crews—continues to confirm its staying power. In public health, local governments look for better options to stop outbreaks without emptying municipal funds on labor or special storage. Nootkatone checks those boxes, too, providing straightforward logistics with long shelf life at room temperature.
Companies and public agencies need to keep investing in open research—publishing findings, whether positive or negative, on effectiveness and long-term impact. Consumer trust depends on seeing both sides: limits as well as benefits. Labeling laws should tighten, so wishful claims face real scrutiny. If a product says it fights ticks for four hours, users should see solid trial data. Scientists must keep studying breakdown products, even in edge cases, to prevent hidden costs to pets, wildlife, or water quality.
Getting public health authorities on board speeds up community adoption. Local governments responding to Lyme disease, for instance, benefit from simple decision charts: If a product with nootkatone costs no more than the old options and reduces exposure for maintenance crews, schoolchildren, or trail volunteers, they don’t stay stuck in debates over trade-offs. Food and beverage makers, meanwhile, should broaden panel testing—not with insiders, but with regular families. The more eyes and tongues, the faster weaknesses and strengths emerge.
On the agricultural side, there’s promise in tailoring nootkatone-based blends for targeted pests, reducing broad-spectrum spraying. Growers want to keep beneficial insects like bees and butterflies around. Early field tests suggest nootkatone does less collateral harm—a crucial component as resistance grows for older active ingredients. Follow-up research can home in on potential surprises as use goes up and more crops come into play.
I grew up in an area thick with mosquitoes. We measured spring not by temperature but by how fast the first welts appeared on our arms and legs. DEET and permethrin came out early and stayed late; clothes faded and skin dried. Every year, we wondered if the solution was worse than the problem. Then, I tried a nootkatone-based repellent on a backpacking trip through Florida swamps. The difference wasn’t just the protection—it was how the day went. I tossed a Frisbee with my nephew, held a sandwich without cringing, didn’t worry that my dog would lick my hand and wind up sick. The grapefruit note never got old, and I walked home without a cluster of bites behind my knees.
Friends text now, asking what I use on my kids or pack in my gym bag. Increasingly, they notice ingredient labels and realize that the standard choices aren’t set in stone. For people with asthma or skin allergies, finding something effective that doesn’t trigger flares or hives feels like discovering running water in a desert. Nootkatone, in my circle, became a code for “something that actually works without making me sorry.” Skeptics converted after borrowing a bottle or trying a friend’s bug spray. They stuck around because, down the line, no one cared to revisit the burning eyes or ruined gear from harsher chemicals.
Our relationship with the natural world sits at a turning point. As pesticides falter and consumer trust frays, people need options that respect both health and local ecosystems. Nootkatone doesn’t solve every problem, but it points to a broader movement: reconsidering which natural tools we promote, and how we measure success. Big agriculture, small home brands, even city health departments have room now to try something new without reverting to the tired fixes of past decades. On the shelf and in the field, nootkatone’s rise reminds us that innovation isn’t always about pushing boundaries—it’s about listening to problems, learning from mistakes, and trusting the evidence that unfolds over time.
Genuine progress often comes from quiet shifts that ripple out through communities: a safer backyard barbecue, a child who plays outside without wincing, a stream that runs clean long after bugs disappear from spray. Nootkatone, in each of these moments, earns its place not only as a technical achievement but as a signal that thoughtful, grounded solutions can still change how we live.