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Androst-2-En-17-One

    • Product Name Androst-2-En-17-One
    • Alias Dienolone
    • Einecs 212-698-2
    • 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

    923323

    Chemical Name Androst-2-en-17-one
    Molecular Formula C19H28O
    Molecular Weight 272.43 g/mol
    Chemical Class Androstane steroid
    Appearance White crystalline powder
    Melting Point 140-142°C
    Cas Number 963-77-7
    Solubility Soluble in organic solvents, insoluble in water
    Logp 3.84
    Synonyms 2-Androsten-17-one
    Pubchem Cid 185181
    Usage Research chemical, bodybuilding supplement precursor
    Structure Type Steroid nucleus with a double bond at 2-position
    Iupac Name androst-2-en-17-one

    As an accredited Androst-2-En-17-One factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing White, opaque plastic bottle containing 25 grams of Androst-2-En-17-One powder, labeled with product name, quantity, and safety information.
    Shipping Androst-2-En-17-One is shipped in sealed, chemical-resistant containers, compliant with relevant safety regulations. Packaging ensures protection from moisture, light, and contamination. All shipments include appropriate labeling, documentation, and safety data sheets (SDS). The chemical is transported via certified carriers, following local and international hazardous materials guidelines to ensure secure delivery.
    Storage Androst-2-En-17-One should be stored in a tightly closed container, protected from light and moisture, at a cool, dry, and well-ventilated location. Keep away from incompatible materials such as oxidizing agents. Store at room temperature (20-25°C), and ensure the area is secure and clearly labeled. Always follow relevant safety protocols and local regulations for chemical storage.
    Application of Androst-2-En-17-One

    Applications of Androst-2-En-17-One in Industrial Manufacturing

    Androst-2-en-17-one is a niche steroidal intermediate utilized in specialized chemical synthesis pipelines. As an established manufacturer, we supply this compound to select segments of the fine chemical, pharmaceutical, and veterinary health sectors. Below, we detail downstream applications and integration practices our industrial clients use this compound for, with specific attention to compliance, formulation ratios, process placement, and target end products.

    1. Pharmaceutical Steroid Synthesis

    Pharmaceutical manufacturers source Androst-2-en-17-one as a critical intermediate for the synthesis of certain anabolic steroid agents. The compound’s unique double-bond structure enables selective transformations during multi-step organic syntheses. Commercial customers employ it in tightly controlled reactors, maintaining traceability from inbound QC to final API isolation. The ratio added depends on target molecule yield and desired purity, with all handling documented per batch under cGMP. Final APIs produced from this route often include advanced anabolic steroid substances destined for regulated drug products.

    Industry compliance standards

    • Good Manufacturing Practice (GMP) as per ICH Q7
    • Pharmacopoeia monographs of USP, EP, or JP for downstream APIs
    • Controlled substance handling per US DEA and local regulatory authorities
    • Auditable batch records and material traceability under ISO 9001:2015

    Typical usage ratio

    • 0.95–1.20 molar equivalents per target API process, adjusted based on batch yield efficiency and purification step requirements

    Downstream process integration

    • Charge to main reactor in steroid nucleus modification stage, often via hydrogenation or aromatic substitution sequence
    • Real-time tracking through reaction monitoring (HPLC, GC)
    • Intermediate isolation before final step derivatization
    • QC analysis at both intermediate and final API output

    Final product types

    • Regulated anabolic steroid Active Pharmaceutical Ingredients (APIs)
    • Final formulated prescription drugs (tablets, injectable solutions)

    2. Veterinary Hormonal Drug Manufacturing

    Animal health companies utilize Androst-2-en-17-one as a building block when synthesizing certain veterinary hormonal agents, specifically for growth management and reproductive support in livestock. Our material’s narrow impurity profile supports compliance in veterinary-specific GMP production suites. Clients tailor raw material ratios depending on the weight and species target, with compound introduction at the core modification step of the synthesis train.

    Industry compliance standards

    • VICH GL33: Stability Testing Guidelines for Veterinary Drugs
    • Good Manufacturing Practice for Animal Drugs (21 CFR 211, China GB/T 13078)
    • Local residue limit regulations (e.g., EU MRL, FDA/USDA drug tolerances)
    • Material identification and traceability under ISO 22000

    Typical usage ratio

    • 0.85–1.10 molar equivalents for main synthetic route, fine-tuned to animal weight dosing guidelines and veterinary drug registration dossier

    Downstream process integration

    • Added during early-stage feedstock conversion to hormonal scaffolds
    • Intermediate purification and assay confirmation via HPLC
    • Processed further with protective group chemistry and esterification, if specified
    • Final blending before formulating into injectable or oral premix

    Final product types

    • Veterinary anabolic hormone pre-mixes
    • Finished veterinary injectables for livestock
    • Oral dosing forms for farm animal growth and reproduction support

    3. Commercial Aromatase Inhibitor Scaffold Production

    Androst-2-en-17-one serves as a precursor for the manufacture of certain non-clinical aromatase inhibitor scaffolds, supporting specialty manufacturers in the fine chemical sector. Its molecular configuration allows for controlled derivatization, yielding intermediates needed for further high-value transformation. These processes require rigorous process segregation to avoid cross-contamination, and dosing accuracy is critical due to the sensitivity of downstream catalytic reactions.

    Industry compliance standards

    • ISO 9001:2015 for specialty chemical manufacturing
    • EU REACH compliance for workplace safety and environmental controls
    • Documented in-house QC specifications for intermediate purity and assay
    • Standard operating procedures (SOPs) as validated by internal QMS

    Typical usage ratio

    • Typically 1.00 molar equivalent as limiting reagent per batch; adjustments made for process scale and target intermediate output

    Downstream process integration

    • Fed to batch reactors equipped with in-line pH and temp monitoring
    • Catalytic processing under controlled temperatures
    • Post-reaction workup and solvent extraction for intermediate isolation
    • Analytical sampling at key steps for product verification

    Final product types

    • Aromatase inhibitor chemical scaffolds
    • Research-use-only (RUO) compounds for screening libraries
    • Chemically defined building blocks for further modification

    4. Endocrine Research and Analytical Reference Marker Manufacture

    Leading laboratories and specialty diagnostic kit providers require high-purity, structurally defined reference standards for endocrine pathway analysis. We supply Androst-2-en-17-one to labs synthesizing or formulating analytical reference substances and internal standards. Applications focus on marker preparation for quantitative LC-MS/MS, GC-MS, or immunoassay calibration in clinical and pre-clinical research.

    Industry compliance standards

    • ISO/IEC 17025 for laboratory reference material production
    • Traceability to NIST or international standards for Certified Reference Materials (CRM)
    • Harmonized documentation (COA, MSDS, TDS) for regulated lab supply
    • Packing and labeling conforming to IATA/ADR for hazardous analytical standards

    Typical usage ratio

    • Usage limited to sub-gram or low milligram levels per standard preparation, as stipulated by laboratory SOPs and kit manufacturer protocols

    Downstream process integration

    • Direct weighing and dissolution under controlled conditions
    • Standard solution preparation with HPLC-grade solvents
    • Ampoule or vial filling under ISO-grade cleanroom environment
    • Final quality check by NMR or mass spectrometry for identity and purity

    Final product types

    • Certified Reference Materials (CRM) for steroid analysis
    • Calibration standards for endocrine research kits
    • Trace-level marker solutions for method development and validation

    5. Industrial R&D for Novel Androgen Modulators

    Select industrial R&D groups engage Androst-2-en-17-one in exploring next-generation androgen pathway modulators, typically at pilot or bench scale. Our production supports these teams by guaranteeing low-residual impurity profiles and batch-to-batch assay repeatability. The compound enters R&D workflows as a template for SAR studies, with process engineers tuning introduction ratios based on data from parallel synthesis and target bioactivity profiles.

    Industry compliance standards

    • Internal GLP (Good Laboratory Practice) for industrial research
    • Project documentation per ICH M3(R2) for investigational studies
    • Traceable supply records per ISO 13485 if integrating with diagnostic device development
    • Material shipping per IATA/ADR when requested for collaborative research

    Typical usage ratio

    • Variable, typically 0.05–0.80 molar equivalents per reaction in screening arrays, scaled based on SAR requirements and target throughput

    Downstream process integration

    • Dosed into multi-variant reaction arrays for synthetic route evaluation
    • Used as molecular template in automated parallel synthesis, with precise liquid-handling dosing
    • Process sampling for real-time reaction mapping (chromatography, NMR)
    • Purification and isolation for onward biological or chemical screening

    Final product types

    • Lead molecules for androgen modulator discovery
    • Steroidal SAR libraries
    • Specialty intermediates for patent filing and preclinical exploration
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    Certification & Compliance
    More Introduction

    Introducing Androst-2-En-17-One: Precision in Chemical Innovation

    The Value Behind Androst-2-En-17-One

    As a team crafting specialty ketones for nearly two decades, we have watched the landscape for advanced intermediates shift rapidly. Among the many shifts, the rise in demand for Androst-2-en-17-one stands out, not just for its structure but also for the possibilities it has brought to research and synthesis. Formulated under controlled reaction protocols, each batch meets targeted purity levels, tested in-house against robust industry standards. Attention to chemical detail sets the stage for confidence—every molecule performs with the consistency that industry partners have come to expect.

    Our Experience with Synthesis and Quality Assurance

    To produce Androst-2-en-17-one, we rely on well-established multi-step processes, built around protecting group strategies, oxidation chemistry, and selective catalysis honed through years of problem-solving in-house. We do not leave any variable to chance. Starting material sourcing and solvent grade matter just as much as downstream isolation and crystallization. Workers on the production line understand the impact of a well-washed glass reactor or a batch solution kept at the right agitation speed. Instruments do monitor critical parameters, but human judgment fills its own role at every scale-up. Years ago, before our adoption of real-time in-line FTIR, small inconsistencies meant that yield sometimes changed batch to batch. After investments in both training and monitoring, we reached a turning point—our last six process audits showed zero variation beyond our internal limits.

    Molecular Structure and Differences from Other Ketones

    Chemists new to the landscape of anabolic intermediates often group androstedione analogs together. But close examination reveals the subtle difference defining Androst-2-en-17-one. The presence of a double bond between C2 and C3 changes electron density across the A-ring. That single feature influences reactivity, not just in theoretical chemistry, but also in practical syntheses downstream. Process teams who tried using traditional androst-4-en-3,17-dione in the same application have noted differences in yield and sometimes unwanted byproducts. Our on-site R&D staff dug into mechanistic work and tracked the difference back to the electronic effects of the double bond shift—details that echo through both our internal research and real requests from pharmaceutical partners.

    Physical and Analytical Characteristics

    In our labs, the crystalline product presents a sensory profile—fine powder with off-white color, no visible mechanical contaminants, and a melting point in a reliable range from batch to batch. Our technicians ready every release for NMR, HPLC, and mass spec testing, offering extended chromatographic runs on request for those navigating complex downstream analytics. Each shipment leaves with a comprehensive batch record for full traceability. Over the years, the handful of clients who encountered deviations always traced the source not to our production line but to external storage or transit conditions—a point that pushed us to improve moisture sealing and temperature-controlled logistics.

    Why Application Matters: Feedback from the Industry

    End users—especially in fine chemical and early drug discovery—have told us that the choice of ketone backbone can alter research timelines, downstream synthetic flexibility, and validation protocols. Researchers pursuing semi-synthetic steroidal APIs have found themselves stuck without a reliable supply, or worse, forced to troubleshoot byproduct formation. We observed teams in pilot labs save weeks after switching from less predictable sources to our in-house produced material. One pharmaceutical client cut re-optimization time for a selective reduction by half after replacing a mixed-lot intermediate. These stories resonate with us, reinforcing the real-world value of lot-to-lot consistency beyond what a mere CoA can capture.

    Specifications and Details—Delivered, Not Just Promised

    The specification profile is not accidental. Typical lots register over 98.5% by HPLC, with trace water content below 0.2% and absolute minimal residual solvents as confirmed by validated GC methods. Bulk density falls in the expected range, supporting ease of handling without unnecessary dusting or compaction. Particle sizing is monitored and logged, not because it’s an academic metric, but because feedback from blending operations in partner facilities steered us years ago to focus on this property. We recall one customer pointing out inconsistencies in their process stemming from another supplier’s oversize fraction. After tightening our sieving procedures, returns and customer issues dropped to zero.

    A Real-World Look at Usage: Lab and Plant Experience

    End-use always shapes our approach to manufacturing. Medicinal chemists tend to scale milligrams to grams for screening and exploratory analog work. Process chemists and pilot operators have a different wish list: high reliability and clear documentation for scale-up to multi-kilo quantities. Each year we field calls about integrating our product into exploratory bioconversions, fluorination experiments, or modular derivatizations. Lab teams have shared stories of repeated product recovery without crystallization failure—a crucial point when resources and time are tight. Any issue raised, whether a question about batch variability or a concern over stability, goes straight to our technical desk. It’s not uncommon for our staff to review chromatographic run data at a client’s request, or to provide tailored advice on dissolution for formulation.

    Supply Consistency During Global Disruption

    Raw material shortages, workforce disruptions, and logistical unpredictability have shaped our own risk management in the past few years. We source precursors directly, storing a buffer stock to shield partners from upstream volatility. During a season of international shipping issues, we shifted to more secure regional freight and increased in-house inventory. No substitute exists for steady dialogue with long-term clients who warn us early if forecasts have changed. We listened to feedback that backed up too many surplus stocks or added delay fees on overcommitted orders. Our approach will remain steady—forecast closely, over-communicate, and keep reserves high enough to weather unexpected swings.

    Differentiation Goes Beyond the Molecule

    Years back, feedback from a major partner forced us to reevaluate site security and compartmentalization for schedule-controlled compounds. Our plant’s enhanced access protocols now exceed regulatory minimums, and our staff undergo regular external audit training. Not every client needs this degree of control, but for those who operate in highly regulated pharma spaces, it is not negotiable. We learned the hard way that reputation rests not just on the molecule, but on demonstration of responsibly managed operations. Documentation, single-lot traceability, and batch archiving form part of our standard delivery.

    Handling, Storage, and Technical Service: Lessons from the Field

    Clients familiar with steroidal ketones often ask about shelf stability, light sensitivity, or packaging. Our technical team always recommends cool, dry storage and sealed packaging to prevent degradation. Some groups in high humidity climates have asked for extra desiccant in bulk containers—a simple solution we introduced after repeated requests. Others benefit from smaller sub-pack sizing to avoid repeated re-exposure to air. We track stability in accelerated and long-term studies, sharing real shelf-life data rather than estimates based on literature. Handling in the plant reflects the real condition in which our clients will receive the product: every drum is double-sealed, each label fixed for traceability, and weight reconfirmed with calibrated balances.

    Research Collaboration and Problem Solving

    Engagement with research chemists has taught us that not every issue surfaces in the batch records. In one recent case, a customer reported trace aldehyde formation under oxidative storage. Instead of passing responsibility, we reproduced the conditions at our pilot facility and identified a previously overlooked trace impurity in sealing material. Changing supplier and revalidating packaging resolved the issue on both sides. Such stories drive home the importance of a feedback loop between manufacturer and end user. Shared data, follow-up site visits, and direct conversations bridge the gap between synthesis and application.

    Troubleshooting and Customer Support

    Hiccups do happen—an unexpected delay in customs, or a mislabeling event during a busy shipping cycle—but the critical marker lies in speed and accuracy of response. Clients have direct lines not only to our sales staff, but also to synthetic chemists and QA managers who can troubleshoot real issues. When a client flagged an unexpected performance drop during a pilot hydrogenation, our applied R&D team ran parallel test reactions across several retained samples. In two days, we identified a change in glassware supplier as the root cause behind altered product adsorption. Practical experience tells us to test every new material, however small, before introducing it into process-critical chemistry.

    Process Safety, Sustainability, and Compliance

    Manufacturing specialty fine chemicals brings a duty of care—both to workers and the environment. We design reactions to reduce hazardous waste and invest in solvent recycling. With every product, including Androst-2-en-17-one, our teams vet safety and environmental impact, both in-house and using independent auditors. Much of our waste handling now centers around in-process controls and capture; teams monitor effluent and reduce chemical loads before final discharge. For partners with sustainability targets, we can share detailed data on energy use and waste output. Regulation keeps shifting, and we’ve learned to stay agile, auditing every aspect of compliance ahead of renewed certifications.

    Pharmaceutical, Veterinary, and Analytical Use Cases

    In-house, a portion of our output goes directly into route scouting for pharmaceutical synthesis. Other clients use the product in veterinary research or as a reference standard for analytical testing laboratories. We do not dilute analytical rigor at smaller scales—the same product leaves our facility regardless of destination. Some of our long-term research partners continue to develop new routes to novel analogs, using our intermediate as a launching pad into uncharted territory. Whether for bioassay trial work, reference spiking in mass spectrometry, or as a precursor for further elaboration, real-world performance sets the bar.

    Long-Term Partnerships: What We’ve Learned

    Building trust in complex chemical supply networks requires consistency, transparency, and the humility to acknowledge mistakes. Clients have brought us challenging timelines, specialized analytical requests, and demanding specification sheets. Open sharing of both process information and limitations sets the stage for realistic delivery schedules. We document both successful and failed attempts at scale-up or process patching, respecting client confidentiality. Over time, relationships shift from transactional order-taking to the kind of steady dialogue that flags disruptions before they impact production.

    Commitment to Ongoing Innovation

    The conversation between producer and end user does not end with a final shipment. We welcome feedback about process upgrades, changes in synthetic strategy, or new validation requirements. Our in-house team revisits synthetic sequences from time to time, eliminating legacy steps, automating controls, and reducing cost or energy use. New partners, especially those moving from academic to commercial scale, often return with fresh ideas about product needs that feed directly into our R&D priorities. Sometimes that means fractional distillation at a different cut point; at others, a tighter specification or custom packaging. Our process room continues to evolve—automation is up, safety workflow tightened, and review cycles shortened—driven by years of practical manufacturing experience, not by abstract planning.

    Looking Ahead—Sustaining Reliability as a Value

    Past experience shapes all future planning. Androst-2-en-17-one production continues to anchor a portion of our specialty line, not just for its chemistry, but for what it represents: a benchmark for reliability, product control, and real responsiveness to client needs. Every call, every order, and every technical challenge continues to teach us something new about how to deliver better and faster, while maintaining the discipline that a controlled chemical intermediate deserves. Sustained success rests on every link in the production chain showing the same attention to detail and shared commitment to uncompromising quality.