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4-Catechin hydrate tells a bigger story about humankind’s relationship with nature and chemistry. Early on, botanists and healers stumbled across catechins in common plants, such as tea leaves and acacia. For centuries, these folks brewed leaves for their mellow bitterness and quiet restorative properties, not yet knowing how specific molecules like 4-catechin hydrate played their part. Fast forward to modern times: researchers isolated and named individual catechins, adding “hydrate” after realizing water molecules decided to tag along and change the game in subtle ways. Laboratories expanded beyond curiosity, exploring how this compound shapes nutrition, health, and, more recently, industrial applications.
4-Catechin hydrate stands out in the catechin family for its stability and solubility. Extractors commonly pull it from plant sources using water or mild alcohols, after which purification steps preserve both the catechin backbone and the attached hydrate. Powdered or crystalline forms suit researchers and manufacturers alike. The substance shows up in pharmaceutical preparations, functional foods, supplements, and research kits, promising consistent purity and reliable performance with every batch.
On sight, 4-catechin hydrate usually takes a pale, off-white shade, turning to powder at room temperature and showing slight sweet and bitter notes. Pure 4-catechin hydrate’s structure includes a flavanol backbone with hydroxyl groups positioned at specific sites, responsible for reactivity and flavor. It dissolves well in water and alcohol, thanks to the hydrate group, and resists melting much below 100°C. When storing in typical lab or industrial settings, low humidity and away from light give it the long shelf life chemists value. In testing, what grabs attention is both its antioxidant activity and its tendency to scavenge free radicals in solution — a property that grabs nutritionists and skincare developers alike.
Suppliers measure purity by HPLC, often stating it as a percentage, and offer detailed certificates of analysis. Labels note origin, moisture content, and batch numbers for full traceability in regulated fields. For lab work or product formulation, manufacturers declare solubility, stability, and storage guidelines on documentation and outer packaging. Safety warnings highlight the dust risk, indicating that it’s always a smart move to use gloves and protective eyewear during handling to avoid unnecessary exposure.
Manufacturers typically start with plant material high in catechins, such as green tea or acacia bark. They dry and grind the source, then turn to solvents like water or ethanol to coax the catechin hydrate out. Filtration and gentle evaporation follow, concentrating the target molecule. Further steps include crystallization and washing, sometimes repeating the process to boost purity and wash away unwanted relatives. Technicians keep a close eye with analytical tools at every stage, always hunting for that sweet spot of purity and water content that marks genuine 4-catechin hydrate.
Chemists enjoy 4-catechin hydrate’s reactive nature, especially its ability to bond, split, or rearrange when meeting acids, bases, or oxidizing conditions. They modify catechins to build new antioxidants or test pharmacological tweaks. Sometimes the hydrate group helps shield the molecule during reactions, only to depart later. People working in green chemistry search for cleaner methods to synthesize or modify catechins, relying less on harsh chemicals. Industry seeks new esters and glycosides derived from 4-catechin hydrate, looking for tailored health benefits or improved stability in complex formulations.
The scientific community knows 4-catechin hydrate by several other names: Cianidanol hydrate, 3,3’,4’,5,7-flavanpentol hydrate, and (+)-catechin monohydrate, among others. Commercial labs or supplement vendors sometimes simplify labels, calling it “natural catechin hydrate” or “tea catechin powder.” These aliases reflect the compound’s broad roots and diverse uses, often quoting the plant origin on packaging for consumers who track ingredient source or sustainable harvesting claims. When scanning the shelves or product sheets, awareness of synonym use matters, so buyers spot the genuine article and not a low-grade substitute.
Any plant-derived compound deserves care and respect, 4-catechin hydrate included. Safety protocols suggest gloves, dust masks, and goggles at minimum. Factory and lab managers look for GMP certification, non-GMO status, and clean production lines as signals of trustworthy production. EHS officers push for good ventilation in powdering rooms to keep airborne particulates from lingering on surfaces or in lungs. Agencies like the FDA and EFSA issue maximum exposure limits and call for transparent sourcing and full chemical reports before approving use in health supplements or foods.
4-Catechin hydrate rides high in the world of food additives, nutraceuticals, cosmetics, and analytical chemistry. Food manufacturers lean on it for antioxidant prowess, aiming to extend shelf life and bring on subtle mouthfeel enhancements in teas, chocolates, or nutrition bars. Skincare brands tap its free radical-fighting ability to promise gentle, plant-powered protection in creams and serums. Drug developers eye catechin hydrates as scaffolds for experimental therapies, targeting everything from metabolic inflammation to neuroprotection. Research teams use pure 4-catechin hydrate as a reagent or reference compound in studying antioxidant capacities or tracing metabolic pathways in plants and humans.
The research field stays lively, with universities and manufacturers poking into mechanistic details and broadening application frontiers. Investigators explore how structural tweaks—either through glycosylation or methylation—affect solubility and bioactivity. Traditional extraction methods get compared with new-age supercritical CO2 or membrane-based purification, aiming for higher yield and lower energy cost. Human studies get underway, linking daily catechin intake to cardiovascular wellness, cognitive sharpness, or even slowing certain chronic diseases—though peer review reminds us there’s a gap between cell tests and full clinical proof. Product innovators look beyond food and health, testing catechin hydrates in biodegradable packaging, textiles, and agricultural treatments.
Extensive studies in rodents and cell lines share reassuring data: 4-catechin hydrate shows low acute toxicity, even in doses far higher than dietary exposure. Still, scientists dig deeper, watching for subtle effects over weeks or months—especially as people take supplements daily. Teams monitor liver and kidney markers, red blood cell stability, and gut microbiota shifts, since long-term safety draws cautious optimism but not a green light for unlimited intake. Regulatory bodies rely on this steady trickle of new data to refresh dietary guidelines and set enforceable limits for supplement makers and food engineers.
As the push for clean-label foods and plant-based chemistry grows, 4-catechin hydrate stands at an interesting crossroads. More consumer interest in natural antioxidants paves the way for expanded use in everyday products. Drug researchers continue to test chemical tweaks that might deliver greater health benefits. Food scientists look at blending catechin hydrates with proteins or other flavonoids to create synergistic effects, reaching beyond individual use. Meanwhile, environmental scientists investigate natural antioxidants like 4-catechin hydrate for use in eco-friendly preservation, sustainable packaging, or biodegradable plastics. The coming years promise more specialized catechin-based products, smarter delivery systems, and an even sharper focus on safety profiles and sustainable sourcing.
Mention “catechin” and most folks will picture green tea, maybe dark chocolate if they read health magazines. 4-Catechin Hydrate pops up as one of those antioxidant compounds scientists can’t seem to get enough of, showing up in research labs as well as nutrition circles. It’s not some distant laboratory curiosity — it’s a part of several visible trends in health supplements, skincare, and food preservation.
I’ve seen catechins taught as plant chemicals, but there’s good reason 4-Catechin Hydrate makes its way into patent filings and product formulas. It occurs naturally in tea leaves, cocoa, certain fruits, and even some wines. This isn’t just some supplement industry darling; it’s part of everyday diets across multiple cultures, even if people don’t see the label.
Most conversations about 4-Catechin Hydrate circle around antioxidant credentials. The hype isn’t unfounded. Oxidative stress has been fingered by researchers as a culprit in aging, heart disease, and even memory problems. This catechin helps neutralize free radicals, the cellular troublemakers behind that damage. More than one lab test shows 4-Catechin Hydrate slowing down oxidation reactions, especially in environments exposed to air and light — the everyday enemies of nutritious food and radiant skin alike.
Take a look at health stores, both online and on main street. You’ll spot green tea extracts, some detailed enough to list specific catechins. 4-Catechin Hydrate sits in these capsules aimed at supporting heart health, aiding blood sugar stability, and even protecting brain cells. Clinical research stands behind some of these claims. For instance, journals like Food & Function have published studies noting how catechins can relax blood vessels and lower inflammation markers. Still, as with any supplement, dose and purity matter — the crooks in the market cutting corners can’t be overlooked.
Step into the skincare aisle, and you’ll spot another story. Manufacturers are sneaking catechins, including 4-Catechin Hydrate, into serums and creams. Their goal? Reduce signs of aging and keep skin from getting blotchy after sun exposure. These antioxidants help deal with reactive oxygen species right on the skin’s surface, useful whether someone’s chasing wrinkle-free looks or just trying to fend off redness after a sunny day.
Food preservation comes next. I grew up with home cooks worrying about fruit slices turning brown or oils going rancid. Food technologists now take plant catechins and use them to help keep foods fresh, especially as consumers ask for fewer synthetic additives. 4-Catechin Hydrate’s role here gives snacks and ready meals a fighting chance in the age of honest labeling.
There are reasons to keep an eye on standardization. Not all extracts deliver the same results — the plant’s age, processing steps, and even soil can change catechin content. It’s easy to buy powders promising “pure catechins,” but not every supplier plays by the rules. I’ve seen reports where supplements miss label claims or contain heavy metals. Third-party testing and transparent sourcing help filter out these bad actors.
More people are hunting for natural ways to protect their health. 4-Catechin Hydrate shows up as more than an academic study subject — it’s part of how we fortify foods, defend skin, and even keep produce looking good on shelves. For those embracing science-backed nutrition, this compound deserves a solid spot in the bigger picture of wellness.
Any scientist or manufacturer who works with chemical compounds pays close attention to purity. With 4-Catechin Hydrate, purity is more than a number on a label. In research, anything less than reliably high purity turns projects into guessing games. Trace impurities introduce variables nobody asked for. That’s why analytical chemists press suppliers for documentation—they’re looking past branding and towards hard data like high-performance liquid chromatography results. In most labs, 4-Catechin Hydrate comes in at a specified purity above 98%, and that’s considered reliable for today’s analytical needs.
There’s a sharp difference between a compound at 98% and one at 95%. That extra three percent, invisible to the naked eye, can set off unexpected results in chromatograms or mess with biological data. A few years ago, during an antioxidant screening, a batch of catechin hydrate tested in at 95%. For lab exercises, it worked, but data felt less trustworthy during pharmacological testing. Switching to a 99% pure batch produced results less riddled with outliers and made our findings defensible in peer review. Researchers need that kind of reliability if they hope to publish or bring a concept beyond the bench.
Beyond academic or pharmaceutical labs, purity matters for companies selling supplements, functional foods, or cosmetics that lean on catechins’ benefits. Lower-grade material doesn’t just throw off the math for dosing; it risks introducing contaminants—sometimes even heavy metals—that nobody wants in their body or on their skin. Regulatory agencies like the FDA check for purity with surprise audits, which pushes companies to choose suppliers with transparent quality-control reports. Documentation isn’t just bureaucratic paperwork—it's the only thing that separates real safety from empty marketing.
Producers of 4-Catechin Hydrate use entire teams for batch testing. Experienced chemists rely on techniques like mass spectrometry and NMR, not just paperwork or quick colorimetric tests. If a production run dips below specification, serious manufacturers discard it or downgrade it for non-critical uses. Customers who pay a premium for pharmaceutical- or food-grade purity expect this kind of attention at every step. While some in the industry try to cut corners, the top players offer certificates of analysis and answer detailed questions without hesitation.
Countries investing in domestic chemical synthesis improve accountability over imported alternatives. End-users can visit production sites, see testing protocols, and hold suppliers responsible. Clear standards, industry watchdogs, and regular updates to public databases expand transparency. In labs, routine verification—using an independent method like melting point or retention time comparison—backs up claims about purity. Consumers and researchers can then choose their suppliers based on real-world lab experience, not just what’s printed in a glossy brochure.
The purity of 4-Catechin Hydrate isn’t a simple technical detail. It stands as a critical factor shaping trust, reproducibility, and safety in scientific and commercial applications. Access to documented, thoroughly tested material builds stronger research, better products, and protects everyone involved—something I’ve learned is never negotiable in the real world.
4-Catechin Hydrate doesn’t make the front page, but people in labs and manufacturing rely on its stability. It’s a flavonoid, widely referenced in food chemistry and pharmaceuticals for its antioxidant properties. From what I’ve seen, both academic and commercial research prioritize storage because quality drops quickly when handled carelessly.
Temperature control stands out as a major factor. 4-Catechin Hydrate breaks down in warm environments. Long-term exposure to high heat speeds up oxidation and can lead to loss of potency. Manufacturers recommend that the powder stays at 2–8°C, like many biochemicals. That basically means refrigeration. In shared lab spaces, this might mean locking the bottle inside a labeled fridge compartment. At home in research settings, I’ve wrapped the original container in aluminum foil, stuffed it in a sealable bag with a silica desiccant pack, and kept it in a lab fridge to reduce exposure to both light and moisture.
Water sneaks in and changes the story. Moisture absorbs into powders and turns them clumpy. Worse, it triggers breakdown—if you’ve ever left open a bottle in a humid lab, you see how quickly this can happen. The hydrate form of catechin is even more sensitive. Light exposure also directly affects its chemistry. For this reason, you’ll often find catechin hydrate bottles tinted brown or black. Labs avoid open shelving and always cap bottles tightly after use.
The bottle itself matters more than most realize. Old caps or poorly fitting lids let in air, which means oxygen. Over a few weeks, oxidation kicks off, and test results drift. That’s one reason I always pick products with airtight, screw-top caps and sometimes even use a layer of Parafilm around the lid for an extra seal. In academic labs or commercial environments, staff check supply conditions regularly—annual reviews often focus on clear labeling of opening dates and storage conditions.
Mislabeled chemicals lead to wasted research hours or risk. Keeping records of lot numbers, purchase dates, and first opening keeps things straight. In routine lab maintenance, expired or suspect samples are cleared out. There’s an industry push—especially for GMP labs—toward digital inventory, which pops up reminders for required inspections or disposal.
The purity and consistency of research-grade chemicals depend strongly on how they’re kept. GMP requirements specify both temperature and humidity logs, checked daily. Even in settings without such regulations, keeping a temperature/humidity chart nearby catches cooling failures before damage sets in.
Mistakes cost more than money. Poor storage means repeating experiments, losing valuable time. It can also mean accidental exposure risks—some breakdown products are not fully studied. So, accessible MSDS sheets (Material Safety Data Sheets) and clear protocols help new team members avoid common pitfalls.
Safe storage isn’t just about following rules. It’s knowing the quirks of 4-Catechin Hydrate—cool, dry, and dark storage in airtight containers. Doing so preserves both the chemical’s properties and the trust in the results it helps deliver.
People have turned to plants for wellness as long as anyone can remember, and catechins rank high among sought-after natural compounds. 4-Catechin hydrate belongs to a group of plant antioxidants best known for their presence in green tea, apples, cocoa, and a few other foods. Folk wisdom suggests drinking tea does a body good, but the question about safety of isolated compounds like 4-catechin hydrate goes deeper than an ancient cup.
Researchers interested in plant-based health have tested catechins for years. Lab work and controlled trials show these molecules act as antioxidants, limiting cell damage tied to stress and pollution. As someone who enjoys green tea daily, I often read papers and talk to dieticians who mention catechins as part of a healthy diet. These conversations often include reminders that eating whole foods differs from taking a compound on its own.
4-Catechin hydrate has low toxicity in animal studies at typical dietary concentrations. Mice, for example, show no signs of harm from amounts similar to what a person might get by drinking tea. Cell studies show antioxidant benefits, but drinking gallons of green tea to chase those results doesn’t make much sense for most people.
Health histories sometimes miss the mark when a supplement gains popularity. Many supplements labeled as “natural” lack real testing. Several human trials track effects of tea catechins as part of daily diets. Reports show most people tolerate them well, especially at levels found in food or drink. Some folks, especially those with sensitive stomachs, report nausea or minor digestive complaints if they take green tea extract on an empty stomach.
Going beyond food doses raises safety questions. Liver toxicity stands out as a concern with certain green tea extracts, especially for people with underlying health issues or those taking huge, concentrated doses. The U.S. Pharmacopeia and European Food Safety Authority reviewed case reports and flagged high supplements as a rare but real risk for liver stress.
Supplements on store shelves rarely undergo strict government review before reaching customers. Each time I walk the supplement aisle, I notice confusing labels and vague claims. Only a few brands list clear details about sourcing, third-party testing, or dosage guidelines. Without strong oversight, anyone considering 4-catechin hydrate supplements needs to seek trustworthy information. Talking to a physician or registered dietician makes sense before starting new supplements—especially for people with chronic conditions or those taking medications that might interact with polyphenols.
The best bet for most people lies in moderation and a whole-food diet. Enjoying tea, fruit, and chocolate in reasonable amounts taps into natural sources of catechins alongside other nutrients. If someone feels strongly about taking a concentrated extract, looking for a product tested by outside labs and following recommended servings lowers risk.
No single antioxidant fixes health overnight, and catechins—4-catechin hydrate included—work best as one part of a bigger picture. Listening to your own body, sharing supplement use with healthcare professionals, and valuing food over pills set a sensible course.
Chemistry doesn't let anything slip by, not even a couple of extra hydrogens in a sample. 4-Catechin Hydrate is a perfect example. On paper, 4-catechin by itself gives a molecular weight of 290.27 g/mol. Add in hydrate, and every chemist knows water isn't just “water”—it’s two hydrogens and an oxygen, dialing up the count by 18.02 g/mol per molecule. For 4-catechin monohydrate, the sum lands at 308.29 g/mol. That number matters. Labs, especially those handling food science or medicine, treat every decimal like gold, since purity and measurement can change outcomes in research or product development.
Years spent in a university research lab taught me that even a small miscalculation sets off bigger problems. Dose accuracy drives every pill, plant, and powder. Make a batch of green tea extract supplements? The manufacturer depends on that molecular weight to measure effective doses of antioxidants for each capsule. Miss by even a small amount, and the product can become inconsistent, or worse, unsafe.
Academic papers back up the need for precision too. Research in the Journal of Agricultural and Food Chemistry points out that catechin’s effect on oxidative stress and heart health relies on precise dosage. If a team misses the true molecular weight by not adding in the hydrate component, a dosage may underwhelm or overwhelm. It’s not pedantry—it's public safety and credibility.
Helping a friend with an herbal supplement startup taught me this isn’t just textbook stuff. He once used the anhydrous molecular weight for calculations, and the difference, though seemingly slight, stacked up across thousands of bottles. The result? Potency tests came back off, labels needed relabeling, and his whole operation faced delays. Pharmaceutical companies run into this issue too; it's a reminder that ignoring water of hydration can derail everything from patent submissions to final approvals.
The world relies on scientists to get the math right. Ensuring ingredients are measured with the correct molecular weights preserves trust down the line. Consumer confidence leans on that chain: nutritionists reporting catechin content in foods, medical professionals considering polyphenol doses, end users reaching for tea or supplements to support their health.
Transparency marks the core of good science. Regulatory bodies like the FDA and EFSA stipulate detailed breakdowns in the paperwork for supplements and additives. Using the correct molecular weight prevents rejections, fines, and, most importantly, builds faith in research and products.
Mistakes around molecular weights happen because ingredients can come in more than one form. To fix this, clearer labeling practices and more rigorous staff training would help. Automated software solutions in the lab could tag molecular weights for hydrates versus anhydrous forms, saving time and reducing human error. Chemical suppliers can help by providing easier access to verified, up-to-date data.
At the end of the day, the number 308.29 g/mol for 4-Catechin Hydrate isn’t just a line in a catalog. It’s a number that helps people do science, make products, and build careers that stand the test of scrutiny. Treating these details with respect does justice to both the compound and the people depending on its use.
| Names | |
| Preferred IUPAC name | (2R,3S)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol monohydrate |
| Other names |
(+)-Catechin hydrate Cianidanol hydrate Cianidanol monohydrate Cianidanolum monohydricum Cianidanolum hydricum |
| Pronunciation | /ˈkæt.ɪ.tʃɪn ˈhaɪ.dreɪt/ |
| Identifiers | |
| CAS Number | [225937-10-0] |
| Beilstein Reference | 2051078 |
| ChEBI | CHEBI:49052 |
| ChEMBL | CHEMBL1642043 |
| ChemSpider | 15086608 |
| DrugBank | DB04294 |
| ECHA InfoCard | 100.034.195 |
| EC Number | EC 200-061-5 |
| Gmelin Reference | 92540 |
| KEGG | C07595 |
| MeSH | D015287 |
| PubChem CID | 90611362 |
| RTECS number | SE7896100 |
| UNII | ZIU07EN75A |
| UN number | UN2811 |
| CompTox Dashboard (EPA) | 4-Catechin Hydrate CompTox Dashboard (EPA) string: `DTXSID4041507` |
| Properties | |
| Chemical formula | C15H14O6 · H2O |
| Molar mass | 290.27 g/mol |
| Appearance | Light brown powder |
| Odor | Odorless |
| Density | 1.3 g/cm³ |
| Solubility in water | Slightly soluble in water |
| log P | 2.12 |
| Acidity (pKa) | 9.41 |
| Basicity (pKb) | 11.98 |
| Magnetic susceptibility (χ) | Diamagnetic |
| Refractive index (nD) | 1.63 |
| Viscosity | Viscous oil |
| Dipole moment | 2.92 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 317 J·mol⁻¹·K⁻¹ |
| Std enthalpy of combustion (ΔcH⦵298) | -811.6 kJ/mol |
| Pharmacology | |
| ATC code | A11HA03 |
| Hazards | |
| Main hazards | Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation. |
| GHS labelling | GHS07, Warning |
| Pictograms | GHS07 |
| Signal word | Warning |
| Hazard statements | H302: Harmful if swallowed. |
| Precautionary statements | P264, P270, P273, P301+P312, P330, P501 |
| NFPA 704 (fire diamond) | 1,1,0,N |
| Lethal dose or concentration | LD₅₀ (oral, rat) > 2,000 mg/kg |
| LD50 (median dose) | LD50 (median dose): >2000 mg/kg (oral, rat) |
| PEL (Permissible) | Not established |
| REL (Recommended) | 50 mg/L |
| Related compounds | |
| Related compounds |
Catechin Epicatechin Epigallocatechin Gallocatechin Epicatechin gallate Epigallocatechin gallate |
