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HS Code |
527880 |
| Iupac Name | (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol |
| Molecular Formula | C15H12O6 |
| Molar Mass | 288.25 g/mol |
| Smiles | C1C(C2=C(C1O)C(=CC(=O)C=C2O)O)C3=CC(=C(C=C3)O)O |
| Chemical Class | Flavan-3-ol (Flavanol) |
| Appearance | Off-white solid |
| Solubility In Water | Slightly soluble |
| Melting Point | 220-222°C |
| Cas Number | 480-41-1 |
| Common Name | (-)-Epicatechin |
| Logp | 0.78 |
| Boiling Point | Decomposes before boiling |
| Pubchem Cid | 72276 |
| Natural Sources | Cocoa, tea, fruits (such as apples and grapes) |
As an accredited (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Amber glass bottle with screw cap, labeled with compound name and structure, 5 grams, stored in protective cushioning, hazard symbols displayed. |
| Container Loading (20′ FCL) | 20′ FCL container loading ensures secure, efficient bulk shipping of (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol with moisture protection. |
| Shipping | The chemical `(2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol` is shipped in sealed, airtight containers under cool, dry conditions. Proper labeling ensures compliance with safety regulations. Specialized packaging prevents moisture and light exposure, maintaining chemical stability during transit. Shipping adheres to relevant hazardous material transport guidelines, if applicable. |
| Storage | Store `(2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol` in a tightly sealed container, protected from light and moisture. Keep at 2–8°C (refrigerator), away from incompatible substances such as strong oxidizers. Handle under inert atmosphere (e.g., nitrogen or argon) if possible to prevent oxidation. Ensure the storage area is well-ventilated and clearly labeled for chemical identity and hazard information. |
| Shelf Life | Shelf life: Store at 2–8°C, protected from light and moisture; stable for at least 2 years in unopened, original packaging. |
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Purity 98%: (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol with purity 98% is used in pharmaceutical formulation development, where it ensures batch-to-batch consistency and reliable bioactivity outcomes. Melting Point 232°C: (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol with a melting point of 232°C is applied in high-temperature synthetic processes, where it maintains compound integrity without decomposition. Particle Size <10 µm: (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol with particle size below 10 µm is incorporated into targeted drug delivery systems, where it enhances bioavailability and dissolution rates. Solubility in DMSO 50 mg/mL: (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol with DMSO solubility of 50 mg/mL is utilized in cell-based assays, where it allows for effective dosing and homogeneous compound dispersion. Stability Temperature up to 80°C: (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol stable up to 80°C is used in biotechnological research, where it retains functional activity during prolonged incubations. Optical Purity >99% ee: (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol with optical purity greater than 99% ee is employed in stereoselective synthesis, where it improves enantioselective reaction yields. HPLC Assay ≥97%: (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol with HPLC assay not less than 97% is required for chemical reference standards, where it ensures analytical accuracy. Moisture Content <0.5%: (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol with moisture content under 0.5% is used in solid-state storage for research reagents, where it prevents degradation and maintains shelf-life. |
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We have spent years refining the synthesis process for (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol, a compound that brings a rare combination of chemical stability and biological activity. Our team’s work with this molecule started from a genuine need for dependable quality and practical usability in both research and manufacturing. Changes in demand told us researchers and product developers need not just high purity but a reliable, repeatable supply chain. Producing this compound involves more than following recipes—consistent batch outcomes are a direct result of careful monitoring and experience on the lab floor.
Many who reach out to us have tried material from various channels. They often complain about unpredictable solubility, color, or stability loss during transport. Years of manufacturing this specific flavonoid means we have learned how small modifications in raw material handling or purification can impact the outcome. Our controlled environment narrows the margin for deviation. Each lot passes spectral and chromatographic checks, carried out on instruments we’ve validated in-house. We keep logs on every operational step, making adjustments when data points hint at potential drift. Every year, our analytics lead finds new variables to follow, based on real feedback rather than guesswork.
We prepare (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol—often known as a particular stereoisomer of catechin or flavan-3,5,7-triol—according to technical specs demanded by researchers and formulation chemists. Typical batches reach greater than 98% enantiomeric excess, determined by chiral high-performance liquid chromatography. Appearance, moisture content, and bulk density get recorded systematically. No one worried about residual solvents as much as we do—our post-purification steps use multiple checks to make sure compliance isn’t left to chance.
Model selection in our plant mainly refers to scale: gram to multi-kg. Replicating small-scale results in a larger vessel isn't just a question of filling up a bigger flask. The nuances, such as mixing speed, seeding points, and even which condenser gets used, can vary outcome and purity profile. Tinier imperfections, visible to a practiced eye in the warehouse or when we check melting points and color, spark immediate internal review.
Synthesizing (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol takes an understanding that almost every customer has different application needs. Some use it as a reference standard for polyphenol quantification, leveraging precise optical rotation readings. Others want it for functional food trials, where they judge shelf life by how consistently the product survives under accelerated aging. Stability under real-world conditions tops our priorities.
For those using it in pharmaceutical research, isomeric purity trumps every other consideration—off-stereochemistry means activity drops or side effects creep in. We watch for polymorph appearance, and since we work at the manufacturer scale, our QA team always checks for unexpected crystalline phases following each process change. Our experience shows that leaving certain solvents or intermediates even lingering after drying can catalyze slow degradation, so we go a step further, choosing protocols that avoid those risks.
There is a reason why so many premium supplement and pharmaceutical trial batches now exclude resold or untraceable sources of this flavonoid. Anyone who has run a reaction or analysis with material of questionable origin knows the frustration: reactivity ranges wildly, and purification sometimes turns into detective work. As primary producers, we control the entire workflow, right down to how and where we store each precursor. Our focus is on long-term stability, color, scent, and trace contamination—attributes that show their importance only when you see a batch hold together after months on the shelf.
We compare every new batch from our line against last quarter’s reference and archive samples. UV-Vis and NMR readings serve as our routine watchguards. This isn’t dogma; it is hard-won habit. Years ago, a single calibration slip in our in-process FID detector cost us weeks of work and brought about a more robust review schedule. We keep learning in-house, not through conference hearsay but through fact-finding when things go off-plan.
Watching how our material performs in formulation lets us advise customers on workable pH ranges and preferred solvent combos. Stability studies carried out in our own QC suite taught us that early browning or unexpected precipitate formation trace back not just to synthesis, but also to subtle air or light exposures that happen during packaging. That’s why we package in neutral glass under nitrogen for all research-scale lots.
Our direct relationships with academic teams help us improve. A few years back, a group flagged inconsistencies between their reference standard and a commercial lot during a food matrix analysis. After cross-referencing spectra and tracing residuals, we resolved the sourcing issue, which turned out to be a batch contamination from an external provider. We now test incoming supplies of starting phenols and solvents with the same scrutiny applied to finished goods.
Scaling up, the importance of recrystallization technique goes beyond obtaining a shiny look—it means eliminating microparticulates that later interfere with dissolution in vivo. Our staff has learned to spot differences by hand, not just by machine readout, and that has nudged our product performance ahead of unidentified bulk purchases.
Manufacturing takes commitment beyond profit margins. Direct control over the whole chain, from raw phenol acceptance to finished sealed vial, is how we prevent the compounded errors of multi-step distribution. We test for the presence of ubiquitous contaminants like heavy metals and select batches of starting materials which have passed internal and external audits. Stereoselective synthesis isn’t just a catchphrase for us—it’s the result of hundreds of hours optimizing conditions so that (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol comes out right, every time.
Each season brings new supply challenges. As crop yields for some feedstocks fluctuate, the pressure of maintaining schedules forces creativity. We invest in contract relationships with growers and basic producers, not to push price cuts, but to guarantee access to the volume and purity level we demand. That direct input privileges us with trend insights, early warnings, and technical data, which help us preempt looming disruptions and keep timelines consistent for our customers.
Few molecules invite as wide a range of usages as this one. In some customer labs, it’s adopted as a marker for antioxidant status, with results published in peer-reviewed journals. In other projects, we’ve seen teams try to encapsulate it or incorporate it in topical agents, betting on its stability and anti-inflammatory profile. Our ongoing technical support responds to application-specific hurdles. If a batch underperforms in a specific formulation, we don’t just ship a replacement. We troubleshoot process design, sharing extraction and handling tricks that arise from our own R&D failures and victories.
We love to take part in reference method validations as an active chemical partner, not a passive vendor. Our input often tips the scale in critical step selection, like whether to opt for dry powder blending or a solubilized intermediate. That’s the privilege and responsibility of manufacturing at source: our products are not just data points on a spreadsheet, but substances with hands-on stories, process lessons, and performance histories.
Compliance walks alongside science in our line. For international customers preparing this molecule for regulated submissions, we supply detailed batch records, impurity profiles, and chromatography output, based on actual, up-to-date runs. That transparency is rooted in decades spent satisfying regional authorities and stringent market requirements. We frequently adapt process controls—such as temperature ramps, catalyst introduction points, or purification solvent grade—not just for efficiency, but because changes in regulatory focus demand anticipation and discipline.
Safety isn't just about paperwork. On our shop floor, we follow protocols that consider the longevity of our staff as much as the shelf-life of our stock. Personal protective equipment, exhausting air change rates, and detailed cleanout steps for glassware and reactors are second nature here. The reality is if exposure limits or residues risk operator or downstream user health, there’s an immediate investigation followed by an open forum with everyone on shift. We take questions seriously, because every safety break or near-miss is a learning opportunity—not a black mark to hide from outside eyes.
We have seen the industry’s challenges firsthand. For (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol, stability under challenging conditions—heat, light, moisture—remains a persistent issue. Our approach combines sound chemistry with practical workflow tweaks: double-bagging finished powder, expelling trace oxygen, and keeping sample pulls to a minimum during storage.
Degradation under transport worried us early on. Some customers, especially those a continent away, reported yellowing or loss of chromatographic purity. Instead of relying on rapid shipping alone, we changed to custom thermal insulation and stepwise cold-chain tracking, with data-logging right in the product case. We also reformulated our desiccant packets based on in-house absorbency trials. Those interventions cut post-delivery complaint rates by nearly half in the last year.
We hardly believe our work ends as material ships out. Being the actual manufacturer, sometimes the first glimpses of a novel function or property come directly to us. An unexpected fluorescence, an odd pH-driven color shift, a pattern in bioactivity that doesn’t fit published literature—customers reach out, and these findings drive our internal projects. That’s one area resellers can’t match: we see the data as it arrives, build in feedback cycles, and are always tweaking our production and purification methods.
Collaborative R&D has shaped our batch protocols. Early iteration methods left more residual bases, risking unwanted side reactions in sensitive downstream applications. Piloting multiple acid quenching regimens with partners in analytical labs, we fine-tuned our post-reaction cleanups to knock down those traces without sacrificing yield. Sharing both the setbacks and the wins, we come out with a product profile that matches real-world application stress, rather than just theoretical models.
Not all flavan-3,4-triols deliver the same outcomes; chirality and purity drive the difference. The (2R,3R)-conformation brings a biological relevance reflected in enzyme assays and cell models. Where other suppliers mix or fail to separate stereoisomers, users report loss of signal, lower bioavailability, or misleading conclusions. Every analyst experienced in the natural products sector notices that inconsistent chiral resolution leads to batch variability, obscured results, and wasted time. Our plant focuses on exclusive stereopure output, and we routinely run cross-comparisons with reference standards sourced globally.
Our analytics team catalogs minor impurity fingerprints and provides customers with real-life spectra, not just summary COAs. Identifying trace metals, environmental residues, or process-specific byproducts isn’t just a routine—it's a matter of record. Analysis of legacy samples lets us discover slow-forming degradants and improve our bulk storage and packaging choices. We archive sample pouches from every kilo-scale lot so that the process history always reflects actual, not idealized, performance.
Supplying (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol as a true manufacturer is about building confidence with every order. Our technical support doesn’t hand off questions to a faceless support desk, since the people advising you are the ones who run the syntheses. This tight feedback loop yields improvements in the production cycle, from reactant QC to SOP adjustments in packing and shipment.
For clients tackling long-term development or supply pipeline forecasting, early engagement helps align our production planning to their needs. That means adjusting scale size, storage buffering, or response time for order surges tied to research cycles or regulatory changes. Any challenge relayed from the field, whether it’s a lab handling issue or a macro-shock in delivery, is debated by the same team you’d meet on a site visit. There's an accountability here that simply doesn’t exist with impersonal sources.
Markets and research priorities change. New analytical targets and breakthrough applications for this molecule arise with impressive frequency. Every shift in synthesis planning is based on the data and feedback we gather, not only from our own batch records but from the precise inquiries and troubleshooting calls made by end users. That continuity—seeing the entire path from flask to shelf, and frequently back again—keeps us invested in every improvement, large or small.
We stay accessible to customer questions on technical procedure, sourcing story, or alternate specification needs. If a research group or manufacturing partner spots an anomaly, it becomes part of our playbook. Tuning particle size, modifying crystalline form, or running additional shelf-life trials—these are rooted in practical production history, not passing trends. The stakeholder in a product like (2R,3R)-2-(3,4-dihydroxyphenyl)-3,4-dihydro-2H-chromene-3,5,7-triol is as much the bench chemist as the applying scientist. That's the edge of direct, experienced manufacturing.