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Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyate

    • Product Name Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyate
    • Alias (R)-(-)-4-Cyano-3-hydroxybutyric acid ethyl ester
    • Einecs 428-210-7
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
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    Specifications

    HS Code

    804926

    Product Name Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyrate
    Cas Number 112022-80-5
    Molecular Formula C7H11NO3
    Molecular Weight 157.17
    Appearance Colorless to pale yellow liquid
    Purity Typically >98%
    Optical Rotation [α]D20 -28° to -32° (c=1, CHCl3)
    Boiling Point 112-114°C at 10 mmHg
    Density 1.12 g/cm³ at 25°C
    Storage Conditions Store at 2-8°C, protect from light and moisture
    Solubility Soluble in methanol, ethanol, and dichloromethane
    Synonyms Ethyl (R)-(-)-4-cyano-3-hydroxybutyrate; Ethyl (R)-4-cyano-3-hydroxybutyrate
    Smiles CCOC(=O)C(C#N)CO
    Refractive Index n20/D 1.440-1.444
    Hazard Statements Irritant to eyes, skin, and respiratory tract

    As an accredited Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The 25g bottle of Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyrate comes in a sealed, amber glass container with tamper-proof cap.
    Shipping Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyrate is shipped in tightly sealed containers, typically under ambient or refrigerated conditions to ensure stability. Packaging complies with regulations for chemical transport, with clear hazard labeling. Transportation is via ground or air freight, following all safety guidelines for handling and documentation of organic chemicals.
    Storage **Ethyl (R)-(-)-4-Cyano-3-hydroxybutyrate** should be stored in a tightly sealed container under an inert atmosphere, such as nitrogen or argon, to prevent moisture ingress and oxidation. Store in a cool, dry, and well-ventilated area, ideally at 2–8°C (refrigerator temperature). Protect from light, heat, and incompatible substances like strong acids or bases. Clearly label the container and handle with standard laboratory precautions.
    Application of Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyate

    Applications of Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyrate in Industrial Manufacturing

    Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyrate is a critical building block used by pharmaceutical, agrochemical, and advanced material producers for high-value synthesis routes. Our facility supplies this intermediate with strict attention to technical requirements downstream. This section details verified industrial uses based on actual global customer practice.

    1. Chiral Intermediate for Statin Active Pharmaceutical Ingredients (APIs)

    This material plays a key role as a chiral intermediate in the multi-step synthesis of Rosuvastatin calcium and related statins. Pharmaceutical manufacturers use it in asymmetric synthesis routes, where chiral purity directly impacts drug safety and regulatory approval. Production lines require controlled handling and monitored reaction parameters to secure high enantiomeric excess and yield, contributing to reliable scale-up for API batches destined for regulated markets.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice
    • EU GMP Part II for APIs
    • United States Pharmacopoeia (USP) monograph references
    • EDQM Certification for intermediates (when supplied to EU pharma)

    Typical usage ratio

    • 1.0–1.2 molar equivalents per statin API batch (adjusted based on yield and purification requirements)

    Downstream process integration

    • Charged at the asymmetric synthesis or chiral coupling stage, either in batch or continuous flow synthesis reactors
    • Purified before coupling with pyrimidine/quinoline rings in subsequent steps
    • Often followed by hydrolysis, esterification, or reduction using appropriate reagents under monitored temperature and pH

    Final product types

    • Rosuvastatin calcium API
    • Pitavastatin intermediate blocks
    • Other chiral statin class derivatives in global pharma supply chains

    2. Intermediate for Chiral Building Blocks in Agrochemical Synthesis

    Agrochemical companies adopt this compound as a stereochemically defined starting material for the synthesis of advanced pesticide and herbicide intermediates. Its cyano and hydroxy functionalities permit regioselective transformations, allowing precise construction of active chiral centers integral to specific pesticide actives. Agrochemical plants emphasize consistent enantiomeric ratio and impurity profile to satisfy global regulatory dossiers.

    Industry compliance standards

    • ISO 9001:2015 for quality processes
    • FAO/WHO specification requirements on agrochemical starting materials
    • China National Standard GB 2763: Food Safety for Maximum Residue Levels in Agricultural Products
    • REACH registration for products supplied in the European Economic Area

    Typical usage ratio

    • 0.8–1.5 molar equivalents per batch, dependent on final active loading and purification strategy

    Downstream process integration

    • Used in initial condensation or cyclization reactions under controlled pH and catalyst loadings
    • Downstream functionalization includes cyanation, hydrolysis or introduction of bulky side chains
    • Integrated with on-line monitoring for impurity limits before transition to next synthetic stage

    Final product types

    • Chiral pesticide intermediates (e.g., pyrethroid-type structures)
    • Herbicide precursors featuring defined stereochemistry
    • Active ingredient scaffolds for insecticides and fungicides

    3. Synthesis of Advanced Chiral Materials for Optoelectronics

    Manufacturers of advanced materials employ this compound as a source of chiral carbon frameworks in the production of enantioselective optoelectronic components. The molecule’s hydroxy and cyano groups enable its incorporation via esterification or amidation, resulting in polymers or crystalline compounds with tailored optical rotation. Downstream processing requires stringent solvent and byproduct removal to maintain high optical clarity and performance in final devices.

    Industry compliance standards

    • ISO 9001:2015 for process quality
    • RoHS (Restriction of Hazardous Substances) compliance for electronics applications
    • Internal optical grade QC standards (light transmission, birefringence, chirality specs)

    Typical usage ratio

    • 5–20 wt% relative to the chiral component feedstock, with adjustments for desired optical activity and polymer chain length

    Downstream process integration

    • Fed into esterification or amidation reactors for controlled copolymerization
    • Used in melt or solution processes, often requiring staged addition for polymer growth control
    • Purified post-reaction using chromatographic or crystallization techniques

    Final product types

    • Chiral dopants for liquid crystal displays (LCDs)
    • Optically active films and coatings for photonic devices
    • Specialty polymers used in advanced sensors and light-polarizing components

    4. Precursor for Fine Chemical Synthesis in Analytical Reference Standards

    Producers of analytical chemicals and certified reference materials use this reagent to synthesize calibration and validation standards. Reliable chiral purity is critical, particularly in producing reference solutions required for regulatory testing of pharmaceuticals and advanced intermediates. Fine chemical labs require meticulous documented traceability and batch consistency, supported by full analytical dossiers and impurity profiles for downstream accreditation and submission.

    Industry compliance standards

    • ISO 17034:2016 for reference material producers
    • ISO/IEC 17025:2017 for analytical method validation
    • USP Reference Standard supply chain documentation

    Typical usage ratio

    • 0.05–0.5 g per reference batch, based on final assay requirements and stability tests

    Downstream process integration

    • Provides starting material for quantitative synthesis via catalytic or enzymatic transformation
    • Used in precise gravimetric or volumetric calibration in analytical chemistry settings
    • Serves as a matrix for isotopic labeling or purity verification

    Final product types

    • Pharmaceutical analytical reference standards
    • Certified calibration solutions for chromatographic analysis
    • Custom chiral standards for method development, including LC/MS and NMR
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    Certification & Compliance
    More Introduction

    Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyrate: Refining Stereochemistry in Practice

    Value Begins in Manufacturing Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyrate

    Producing Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyrate earns its complexity every step of the way. As a chemical manufacturer, the reality is this: any error in chirality ruins the value for pharmaceutical synthesis. Our team depends on years of investment in reliable chiral separation and quality control because publishing a certificate of high enantiomeric excess doesn't come from guesswork. Analytical support runs side by side with every batch, not because the market demands it, but because each impurity or racemization event can set off consequences down the line—especially for active pharmaceutical intermediates relying on tight optical purity.

    Our journey with Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyrate started when a few innovative clients requested more than just a high-purity reagent. They wanted reliable delivery, consistent chiral performance, and product traceability right back to raw material sourcing. It looks simple on a label, but guaranteeing >99% enantiomeric excess batch after batch, from kilograms up to tonne-scale, pushes process development harder than most realize. There’s a marked difference between chemical that’s “certified” and chemical that survives scale-up intact. Handling that transition, without losing the optical rotation or picking up unknowns, shapes everything from reactor design to packaging material.

    Specs that Actually Matter in Real-World Use

    Our Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyrate model focuses on high optical purity, low residual solvent, and narrow impurity profiles. The exacting tolerance does more than satisfy paperwork audits: it lets pharmaceutical researchers run their key step alkylation or reduction reactions with confidence. Many manufacturers claim “high purity” (often >98% by HPLC), but only those with extensive track records in chiral chemical production can consistently supply the >99% enantiomeric excess this compound requires for critical syntheses.

    Specifications have power when they bridge the needs of front-line development chemists directly with manufacturing reality. Water content influences shelf-life; minor variations in the cyano absorbance suggest process drift; even trace acidic or basic residues affect downstream yields in chiral alcohol reduction or amide formation. Overlooking these subtleties means extra purification steps and downtime, the exact headaches everyone works to avoid.

    Pairing chemical and enantiomeric purity with supply stability has more real impact than abstract “quality assurance” claims. Continuous monitoring, traceable lot numbers, and direct handling of questions on things like permissible heavy metal content or reactivity differences make the relationship between producer and end-user a real collaboration. That becomes crucial as regulatory environments tighten QC rules, especially in regulated pharma or biotech spaces.

    Practical Usage in Research and Industrial Synthesis

    Researchers and process chemists often reach for Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyrate as a chiral building block for pharmaceutical intermediates. Over time, the workhorse role—enabling access to chiral β-hydroxy acids and other complex molecules—has become clear across a wide range of product pipelines. The R-enantiomer’s unique structure offers improved selectivity for enzymatic resolution, asymmetric reduction, and selective addition steps.

    Steric and electronic elements within this molecule shape how downstream reactions unfold. Whether the context is a multi-step synthesis of a blockbuster statin or a pilot-scale production for a new CNS compound, a robust source of (R)-(-)-4-Cyano-3-Hydroxybutyrate eliminates delays. Product purity translates to better NMR spectra, fewer chromatographic separations, and improved yields after functional group transformations. In contrast, off-spec or racemic material can waste weeks and drive costs skyward while technicians attempt to rework or repurify failed batches.

    Pharmaceutical teams trust this intermediate because it enables precise stereochemical control without introducing extra variables. For example, manufacturing a beta-lactam antibiotic precursor hinges on starting with single-enantiomer material. Consistency in downstream reactivity saves not just time but thousands of dollars per campaign—especially as process development scales out of kilo labs and into production suites. It isn’t rare for our technical support to guide customers through specialized uses, such as nucleophilic additions, cyclizations, or derivatization, where the starting material’s subtle impurities could otherwise derail entire reaction sequences.

    Universities and contract research organizations also rely on this compound for chiral pool syntheses and mechanistic experiments. Consistency batch to batch matters as much in basic research as it does in industrial runs; a failed asymmetric transformation may hide for months if subtle isomeric drift creeps into one shipment. From a manufacturing stance, our job goes beyond filling orders. We work as partners alongside method development teams, sharing historical batch data and technical bulletins to help maximize efficiency from bench through to market launch.

    Key Differences from Competitive Options

    Competing materials often stem from distributors who never see the actual inside of a reactor. That extra layer distances the product from the people who craft it and distances end-users from the source of their reagents. In the hands of a true manufacturer, every improvement in isolation protocols or purification technology shows up in the next batch’s HPLC trace. The experience gained during plant scale-up—understanding how small deviations in column conditions or crystallization parameters shape the entire supply—simply doesn’t enter the conversation for traders or resellers.

    Process scalability stands as one of the most understated advantages manufacturers provide. Despite promises from generic material suppliers, scaling from gram-level to kilo or tonne-batch often uncovers unexpected contamination, racemization, or byproduct formation. Operating our synthesis lines enables rapid troubleshooting. Whether a technical adjustment is necessary for an intermediate holding tank or real-time changes in pH control during esterification, direct plant feedback loops prevent lost product and keep schedules on track.

    Another core difference: traceability. From a manufacturer’s desk, each batch ties back to a complete paper trail—raw material origins down to individual drum numbers, performance data logged at every step, and deviation records openly reviewed for quality improvement. Sophisticated end-users increasingly ask for this documentation during audits. Meeting those requests requires more than digital inventories: it takes trust built on open communication and willingness to stand behind each kilogram that leaves the warehouse.

    The push for greener chemistry both challenges and rewards producers. Process modifications—like switching to less hazardous solvents, optimizing temperature profiles to avoid unnecessary energy expenditures, or designing mother liquors for reuse—require heavy investment and skilled chemists on site. As a manufacturing group, we confront those questions daily. By contrast, generic material, repackaged from mysterious upstream sources, rarely meets regulatory scrutiny or sustainability targets now expected for even non-pharma applications.

    Intellectual property protection presents its own hurdles with chiral intermediates. Direct control over the whole process secures technical know-how and helps block parallel imports or counterfeits. We recognize how much time and energy go into a reliable synthetic route, and that understanding translates into secure proprietary supply.

    Learning from Customer Feedback and Real-World Issues

    Few things teach faster than working closely with pharmaceutical clients under tight deadlines. Missed delivery slots due to customs holdups or shipping constraints can result in lost weeks during clinical trial ramp-up. As a manufacturer, we “feel” those impacts alongside customers. This perspective motivates us to evaluate every warehouse process, logistics partner, and packaging material through the lens of preventing avoidable bottlenecks.

    Occasionally, researchers discover that even ultra-pure Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyrate interacts poorly with one oddly configured step in a unique synthetic pathway. Older processes, inherited from patent literature, sometimes rely on reagents with ambiguous provenance. Instead of forcing users to simply “make do,” we document all reactivity quirks and share solvent compatibility, potential interference, and shelf-life observations as new findings surface. This approach builds resilience, as unforeseen hiccups during R&D increase with more ambitious routes.

    Temperature sensitivity—both during storage and under process conditions—emerges as a common concern. As scale increases, even slight exotherms or cooling lapses affect optically active compounds more than generic species. Providing downstream chemists not just recommended storage, but also real-world data on heat or air exposure, helps set up labs for fewer failures.

    Customer requests for custom packaging sizes, tamper-evident seals, or on-call technical support drive continual improvement. Adapting our offering often means routine recalibration of packout lines or upgrading analytical instruments. Projects to ensure complete, regulatory-compliant documentation—such as compliance with updated ICH guidelines—become part of daily business, not one-off exercises. That kind of effort, only possible with a manufacturer’s direct involvement, builds supply chain resilience as standards tighten worldwide.

    Continuous Development: Innovations and Responsibility

    Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyrate pushes chemists to innovate, yet innovation never reaches the market safely unless manufacturing teams stay engaged with both global science and evolving regulations. As new reaction methods and synthetic targets surface, we collaborate with academic groups and industrial users to test alternative catalysts, improve yields, or reduce waste solvent volumes. These insights feed directly into batch protocols, often reducing waste by several percent or shortening processing time critical for high-volume production facilities.

    Sustainability carries growing weight as customers factor carbon footprint, regulatory compliance, and life-cycle analysis into sourcing decisions. Tools like closed-loop solvent recovery, energy-efficient reactors, or modular scale-down units move from theoretical concepts to practical installations under pressure from both clients and legislative bodies. As manufacturers, our position allows rapid prototyping of sustainable process options, something traders or intermediaries seldom attempt. Learning from mistakes and near-misses becomes part of in-house knowledge management, reducing future risk both for us and our customers.

    Risk management extends further. Internal hazard assessments, redundant environmental controls, and periodic stress-tests of batch integrity reinforce product quality. If a regulatory agency requests retrospective documentation, or if a multinational client requests COA batch validation three years running, detailed archives keep the business above water. Only plant-based producers appreciate the resource intensity those record-keeping efforts actually require, and only direct producers can deliver on tight timelines with confidence.

    A robust QHSE (Quality, Health, Safety, Environment) ethos improves employee retention and supports recruitment of top technical staff. Our plant managers and process teams participate as stakeholder partners rather than anonymous workers producing for an unknown end market. This concrete foundation—the real-world face of “quality”—translates into fewer accidents, better yields, and ultimately personal pride in each delivered batch.

    Future Trends: Meeting Next-Generation Demands

    End-user needs drift toward even tighter impurity limits as biological assays become more sensitive and therapeutic candidates more complex. Precision instruments now pick out parts-per-billion levels of non-chiral byproducts, driving further investment on our side into chromatographic separation, automation, and in-line analytics. Whenever a customer reports an “unknown” on their mass spec, our R&D team reviews past runs for possible root causes, treating it as both a challenge and an opportunity to tune the process.

    Customers increasingly expect transparency down supply chains. New clients press for full data on raw material sources and ethical harvesting practices for commodity reagents. This demand influences procurement and spurs periodic supplier audits. By managing these expectations directly, manufacturers can adapt, while repackagers or temporary brokers often fall out of step with shifting norms.

    With more focus on continuous processing and modular plant setups, manufacturing evolves in parallel with end-use research. The future won’t support static, once-proven approaches. Instead, flexible synthesis lines capable of shifting to new substrates or quickly validating process changes keep us ahead. As clinical trial failures drop, thanks to better initial quality in chiral intermediates, industry trust grows and fosters partnerships that last well after the first few shipments.

    Handling intellectual property concerns responsibly also means direct dialogue with client legal and technical teams. Confidentiality provisions, non-disclosure agreements, and secure shipment tracking all strengthen business relationships in sectors where months of R&D ride on a single drum of high-purity starting material. No distributor plays that role as closely or thoroughly as a direct manufacturing partner.

    Commitment from Synthesis to Supply Chain

    Bringing proven molecules like Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyrate to global markets requires relentless attention from synthesis through last-mile logistics. In our experience, product stories don’t start with the catalog number—they start at the reactor, with chemists whose decisions on process changes ripple all the way down to a pharmacy shelf or research publication. Chemical manufacturers bring that angle forward, helping customers build better therapies and more robust research protocols while meeting the ever-rising standards of a changing market.

    Every challenge along the road to reliable supply—whether in raw material shortages, regulatory changes, or new market requirements—motivates our teams to rethink not just the next batch, but the next standard in chemical manufacturing. As a team grounded in process, accountability, and technical courage, we see Ethyl (R)-(-)-4-Cyano-3-Hydroxybutyrate as more than just another SKU. It represents the merger of science, manufacturing diligence, and commitment to every customer, year after year.