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Imipenem

    • Product Name Imipenem
    • Alias Primaxin
    • Einecs 656-926-7
    • 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
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    VTB
    Specifications

    HS Code

    368206

    Generic Name Imipenem
    Drug Class Carbapenem antibiotic
    Mechanism Of Action Inhibits bacterial cell wall synthesis
    Route Of Administration Intravenous
    Spectrum Of Activity Broad-spectrum, including gram-positive and gram-negative bacteria
    Common Brand Names Primaxin (when combined with cilastatin)
    Indications Treatment of severe bacterial infections
    Half Life Approximately 1 hour
    Excretion Primarily renal
    Contraindications History of hypersensitivity to beta-lactam antibiotics
    Molecular Formula C12H17N3O4S
    Side Effects Nausea, vomiting, rash, seizures

    As an accredited Imipenem factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing Imipenem packaging: Sterile glass vial, 500 mg powder for injection, labeled with product name, dosage, batch number, and manufacturer's details.
    Shipping Imipenem should be shipped in tightly sealed, light-resistant containers, protected from moisture. It must be transported at controlled room temperature (15–25°C or 59–77°F). For longer transit or elevated temperatures, refrigeration (2–8°C) is recommended to ensure chemical stability. Handle with care and comply with all relevant safety and regulatory guidelines.
    Storage Imipenem should be stored at controlled room temperature, ideally between 20°C to 25°C (68°F to 77°F). Protect it from light and moisture, and keep it in its original packaging until use. Reconstituted solutions should be used promptly or stored as directed, typically refrigerated and used within a specific timeframe to ensure stability and potency.
    Application of Imipenem

    Applications of Imipenem in Industrial Manufacturing

    Imipenem is a β-lactam antibiotic widely used in the pharmaceutical sector for the formulation and production of critical care injectable drugs. As an original manufacturer, we supply high-purity Imipenem APIs meeting rigorous regulatory criteria for advanced downstream applications. Below are specialized industrial scenarios representing the primary commercial uses for bulk Imipenem in global healthcare manufacturing.

    1. Sterile Injectable Antibiotic Production

    Pharmaceutical manufacturers utilize Imipenem as a core active pharmaceutical ingredient for parenteral carbapenem formulations targeting severe, hospital-acquired infections. Bulk Imipenem undergoes sterile crystallization, aseptic compounding, and lyophilization in GMP-certified production lines to ensure consistent potency and sterility in finished injectable products. Strict environmental controls and validated testing allow integration into end-stage formulations for global hospital distribution.

    Industry compliance standards

    • United States Pharmacopeia (USP) Monograph for Imipenem
    • European Pharmacopoeia (Ph. Eur.) standards
    • Japanese Pharmacopoeia (JP)
    • Current Good Manufacturing Practice (cGMP) guidelines (21 CFR Parts 210 & 211, EU GMP Annex 1 for Sterile Medicinal Products)
    • China Pharmacopoeia (ChP)
    • WHO Prequalification Program

    Typical usage ratio

    • Typically formulated at concentrations of 250 mg to 1000 mg per vial. Ingredient loading level is determined by clinical dosage guidelines and may range from 10% to 30% of total mass in combination vials (with cilastatin or relebactam).

    Downstream process integration

    • Sterile Imipenem API enters after upstream fermentation, is purified, and introduced into aseptic blending and vial-filling lines. Lyophilization or liquid-filling occurs before vial sealing and terminal sterilization.

    Final product types

    • Single-dose and multi-dose injectable vials (e.g., Imipenem/Cilastatin for intravenous use)
    • Premixed infusion bags for critical care wards
    • Powder for reconstitution
    • Hospital bulk packs for centralized pharmacy preparation

    2. Bulk Combination Antibiotic Formulations

    Contract manufacturing organizations (CMOs) and large generic producers integrate Imipenem in fixed-dose combination (FDC) products alongside β-lactamase inhibitors. These specialized preparations extend spectrum activity and inhibit resistance mechanisms, requiring meticulous batch mixing, compatibility checks, and co-lyophilization processes. API quality consistency is essential due to synergistic stability issues during intensive process validation and scale-up.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • FDA ANDA and EMA Generic Product Guidelines
    • Resolution No. 36/2013 (ANVISA, Brazil) for multi-component injectables
    • Drug Master File (DMF) submission requirements

    Typical usage ratio

    • Imipenem accounts for 45–55% by mass of the API blend, paired with a β-lactamase inhibitor (cilastatin at a 1:1 ratio commonly, or with relebactam at 100mg:250mg per vial). Ratios are adjusted to comply with labeling and pharmacokinetic studies.

    Downstream process integration

    • After individual API synthesis and QC release, Imipenem enters the FDC manufacturing step, is blended with partners under nitrogen atmosphere, and undergoes continuous lyophilization followed by filling in final packaging units under validated environmental conditions.

    Final product types

    • Imipenem/Relebactam injection kits
    • Imipenem/Cilastatin dual-chamber vials and prefilled syringes
    • Generic hospital-use combination injectables

    3. API Export for Global Regulatory Submission

    International finished dosage producers rely on compliant Imipenem API exports to register and commercialize antibiotics in regulated and emerging markets. Large API batches undergo validated scale-up synthesis, comprehensive impurity profiling, and detailed documentation to support Drug Master File (DMF), Active Substance Master File (ASMF), and site inspections. Export shipments follow pharmaceutical GDP protocols with controlled temperature and tamper-evidence.

    Industry compliance standards

    • WHO Good Distribution Practices (GDP)
    • Common Technical Document (CTD) format for registration dossiers
    • CEP (Certificate of Suitability to the Monographs of the European Pharmacopoeia)
    • APIC Guidance on API export traceability

    Typical usage ratio

    • Bulk API shipped at 100% concentration. End-user formulators dilute as per local product registrations; variations occur depending on dossier strengths (e.g., 500mg, 1g/vial).

    Downstream process integration

    • Exported Imipenem is integrated upon receipt into local formulation lines for sterile compounding, vial or bag filling. Local QC testing and stability trials are conducted per registration requirements before secondary packaging and release to regional hospitals and pharmacies.

    Final product types

    • Registered generic injectables in multiple global markets
    • Government contract antibiotic procurements
    • Region-specific branded parenteral products

    4. Hospital Pharmacy Compounding Supplies

    Centralized hospital compounding centers source sterile Imipenem in bulk pack formats for on-demand preparation of individualized IV doses. This channel requires APIs with consistently low bioburden and traceable batch identity, supporting rapid, accurate dose tailoring for high-risk critical care patients. Enhanced supply stability and full traceability assist pharmacy QC operations under hospital protocols.

    Industry compliance standards

    • United States USP <797> Compounding Sterile Preparations
    • EU Good Hospital Pharmacy Practice (GHP)
    • Joint Commission International (JCI) Medication Management Standards
    • ISO 14644 for cleanroom classification (pharmacy compounding environment)

    Typical usage ratio

    • Imipenem is held in concentrate or sterile powder at 100% API; prepared into 50–1000 mg doses per patient-specific order. Compounded dosage is calculated via hospital prescribing protocols.

    Downstream process integration

    • Pharmacy staff reconstitute the supplied powder with sterile solvent in laminar airflow hoods, filter, then deliver to clinical wards. APIs are tracked from central inventory to individual patient use via electronic medication administration records.

    Final product types

    • Freshly compounded IV antibiotic syringes
    • Ready-to-use hospital antibiotic infusion bags
    • Custom dose vials for intensive care and infectious disease wards

    5. Reference Standard Supply for Analytical Laboratories

    Accredited pharmaceutical analytical labs and control agencies use certified Imipenem reference standards to calibrate HPLC, UPLC, and microbiological assay systems, ensuring quality release of finished antimicrobial products. High-purity lots with full spectral, chemical, and microbiological characterization support validation and regulatory submission needs for batch release and stability studies.

    Industry compliance standards

    • ICH Q2(R1) Validation of Analytical Procedures
    • ISO/IEC 17025 for laboratory competence
    • Pharmacopeial standards (USP RS, EP CRS for Imipenem)
    • GLP (Good Laboratory Practice) requirements

    Typical usage ratio

    • Reference materials are supplied at 99.5%+ purity; end-user labs dilute to 1–10 µg/mL in analytical runs. Exact range depends on the sensitivity of the detection method and the validated method protocol.

    Downstream process integration

    • Standard is dissolved in analytical-grade solvent, spiked into control samples, and run as calibration checks or assay controls during development, QC, and regulatory submission testing of pharmaceutical dosage forms.

    Final product types

    • HPLC, UPLC, and microbiological assay calibration solutions
    • Stability study control samples
    • Pharmacopoeial system suitability test solutions
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    Certification & Compliance
    More Introduction

    Imipenem: A Trusted Carbapenem Antibiotic Produced by Experience

    What Imipenem Represents in Our Plant

    As a manufacturer deeply invested in the field of beta-lactam antibiotics, we approach every batch of imipenem with a sense of responsibility and pride. Imipenem’s role in clinical and hospital settings often grows in parallel with shifts in antibiotic resistance patterns. We draw upon decades of process know-how every time we launch a production run, aware this molecule often becomes the final safeguard when other treatments fall short. Our investment in dedicated carbapenem lines, equipped with filtration and crystallization units specifically suited for unstable beta-lactam structures, anchors the stability and reliability of our imipenem output.

    Understanding the Model and Specifications That Matter

    The standard form of imipenem leaving our site comes as sterile, lyophilized powder—logically tailored for fast hospital formulation into injectable solutions. Typically, each vial contains 500 mg or 1 g of pure active substance. Each increment matches actual clinical need—offering flexibility both for adult and pediatric regimens. The objective in every model is proven purity paired with real-world stability. Shelf life counts for nothing if it can’t withstand fluctuations during transport or remain active after reconstitution in hospital pharmacies. We work with specifications driven by both pharmacopoeial requirements and feedback from formulation clients, including particle size controls and rigorous residual solvent elimination. Our quality team relies on HPLC assays to track each batch, and sterility gets confirmed using validated aseptic protocols inside positive-pressure cleanrooms.

    Hands-On Manufacturing Experience: Meeting Stability Challenges

    Imipenem’s chemical structure—an unusual blend among carbapenems—tends toward rapid hydrolysis, especially in aqueous solutions or where beta-lactamase contamination might exist. Unlike the production of penicillin or cephalosporins, producing stable imipenem demands careful process adaptation at nearly every step. Most operators outside manufacturing might not see the batch losses caused by trace moisture or the added challenge in maintaining sterile integrity once the bulk powder leaves lyophilization. Our experience pushed us to adopt nitrogen-sealed packaging and rapid freeze-drying cycles. We also designed closed transfer protocols for every instance where powdered imipenem moves between vessels, so the active substance never faces humidity spikes. Every technical decision—down to choice of container-stopper systems—draws from lessons learned in failed or compromised lots over the years. This attention pays off in the trust we earn from institutional buyers and government stockpiles worldwide.

    What Sets Our Imipenem Apart From Other Products

    Many carbapenem producers need help to minimize inherent breakdown of imipenem during storage and transport. Over the last decade, we found certain batch sizes work far better than others: larger bulk runs tend to hold lower levels of degradation product thanks to streamlined temperature and humidity controls. We manufacture at scale in facilities where all water used for processing meets ultrapure regulations—removing mineral traces that can otherwise catalyze breakdown. Unlike some players who focus on generic production, we partner directly with hospital pharmacists and infectious disease specialists to update specifications and identify process shifts that make a difference for clinical outcomes.

    Compared with meropenem or ertapenem, imipenem needs combination with cilastatin to guard against nephrotoxicity. Our lines can produce API with or without cilastatin salt, but feedback from clinicians often points to preference for combination vials, especially for use against multidrug-resistant pathogens. Meropenem generally shows more stability in solution, but does not match imipenem’s clinical spectrum—particularly against certain gram-positive organisms and anaerobes. Those differences impact how our customers choose between product lines. We share our analytical data directly with hospitals, including stability studies, so end users see the real performance indicators instead of relying solely on paperwork.

    Addressing Healthcare Needs With Manufacturing Integrity

    In our experience, hospitals order imipenem in urgent cycles whenever regional resistance trends change or a local outbreak emerges. In these moments, continual access and predictable potency matter more than price minimization. We commit to batch-release schedules tied to actual patient demand, not contracts with speculative inventory targets. Current resistance patterns—such as rising carbapenemase prevalence in some countries—demand that we run quality assurance beyond minimum pharmacopoeia benchmarks. We see our responsibility lies not just in molecular synthesis but in transparent sharing of stability data, batch histories, and potential impurity trends with long-term buyers.

    Some features often highlighted in marketing—like “high purity” or “rapid dissolution”—can mask underlying instability issues unless process controls genuinely address degradation mechanisms. Early on in scaling our imipenem output, unexpected degradants sometimes appeared even when standard certificates confirmed the raw material. We learned to flag every anomaly with a full root cause analysis. Lab investments since then led to cross-checks using LC-MS and microbiological potency assessments, not just chemical assays, before shipment. Only manufacturing teams familiar with these real-world challenges appreciate just how vulnerable a carbapenem molecule can be under stress. Hospitals repeatedly voice appreciation for real transparency over superficial claims.

    Feedback From the Front Lines: Developing Imipenem for Actual Clinical Settings

    The insight from infectious disease departments often shapes the next round of manufacturing tweaks. These users identify preparation concerns unforeseen in research labs—like crystallization problems in some reconstitution solvents or delays in forced infusion situations. Some identified challenges stem directly from the molecule: imipenem’s pH in solution needs strict control to maximize antimicrobial activity and minimize side effects, so we reformulated our buffers following clinician advice. We adapt packaging as well, moving to flip-top vials or sealed ampoules in response to infection control protocols. Our sales engineers visit hospitals to observe product use, relaying practical issues back to the production line so corrections get made in real time.

    Over the years, we have adjusted the model line to serve different contexts: bulk for local repackagers, precisely filled single-dose units for critical care wards, and small aliquots for pediatric dosing. Differences between user requirements create opportunities for continuous improvement. The uniqueness of imipenem—its broad, potent spectrum contrasted with storage lability—drives all of us to communicate with stakeholders honestly. Product recall incidents in the industry, unrelated to our plant, push us to rigorously track every finished lot and share up-to-date quality reports with principal buyers.

    Facts From Our Site: What Oversight and Quality Procedures Teach

    A real manufacturing operation faces practical constraints every day—production timelines, supply chain disruptions, and ever-changing regulatory requirements. For imipenem, these constraints heighten because regulatory bodies in North America, Europe, and Asia each require step-by-step documentation for every process change. We train all operators in carbapenem aseptic handling; visitors to our facility notice right away that airlocks and environmental controls run throughout our imipenem suite. Every month, we pull random finished vials from storage and submit them to accelerated stability testing, with results distributed to our internal teams and external partners. Periodic regulatory audits further reinforce chain-of-custody and paperwork discipline.

    Trust rarely results from certificates alone; it comes from pattern recognition over years of reliable supply and issue-free clinical use. We have maintained zero batch recalls due to sterility or potency loss across five consecutive years. This record, built on disciplined adherence to defined standard operating procedures, encourages our partners to collaborate on advanced process development and run stability trials in-market rather than rely on generic protocols.

    Comparing Processes: Imipenem against Other Carbapenems

    Unlike meropenem, which tolerates broader mixing environments and demonstrates greater shelf stability in commercial packaging, imipenem rewards only high-discipline handling. We designed our plant to dedicate entire suites to carbapenem synthesis, preventing cross-exposure to other classes of antibiotics. Finished imipenem powder can’t absorb excess heat or moisture, so our packing and logistics staff get specialized training in rapid turnover and environmental control. Analytical differences emerge at every batch test: imipenem’s impurities profile differs slightly, so our QA team knows which signals matter and which indicate acceptable batch variation. These details support clinical confidence—especially in intensive care or last-resort therapy scenarios where outcomes hinge on molecule integrity.

    Understanding the distinction between imipenem, ertapenem, and doripenem carries practical meaning for us. Each molecule calls for different solvents during crystallization and faces diverging stability concerns. Meropenem, for example, meets wider hospital needs for routine intensive care, but imipenem remains preferred by some specialists managing mixed anaerobic and gram-positive infections. Our technical sales teams don’t just hand over product—they build relationships by educating users on optimal storage, reconstitution, and administration, sometimes delivering on-site training as resistance landscapes evolve.

    Continual Process Improvement: Bridging R&D and the Shop Floor

    Research and development teams collaborate directly with front-line manufacturing, closing the gap between theoretical process innovations and actual daily operations. Over the last decade, project chemists in our group contributed directly to process tweaks that lowered the formation of hydrolytic side-products during freeze-drying. These developments arose from following the long-term storage stability of retained lots, feeding results directly into batch record updates. Our quality assurance group runs ongoing blind testing—checking vials marked for clinical feedback programs against reference samples from previous years. This approach generates real longitudinal data, instead of the snapshot scores typical from certificates alone.

    Most of the significant process improvements result from staff suggestions and error reports: shippers flagged thermal spikes in long-haul shipping, prompting us to introduce short-run cold-chain tests in summer months before full-scale launch. In one instance, our team engineered new insulation solutions to handle a batch destined for a region where supply routes often run unconditioned. These incremental gains shape the reliability of the product line—much more than any advertising copy about innovation could convey. Real feedback—from pharmacists, nurses, customs inspectors, and even logistics drivers—feeds into continuous improvement planning.

    Scaling up Without Sacrificing Quality

    The world market for imipenem rises whenever health systems face outbreaks of multidrug-resistant infections or seek strategic reserves for pandemic planning. Scaling up doesn’t mean lowering standards; every time we expand output, we increase environmental monitoring, run extended sterility testing, and bring on consultants from both clinical and process engineering backgrounds. Technical management sits with incoming raw material logs and batch QC data daily—adjusting schedules if even a hint of deviation gets spotted.

    New product launches—such as single-use prefilled syringes—come only after pilot manufacturing yields convincing stability data under simulated hospital conditions. We engage in regular cross-site exchanges, matching operators with experience on different lines so technical insight circulates and “blind spots” diminish. Only manufacturers understand how small lapses could cascade into field complaints; our baseline is that even the smallest unresolved deviation gets a full incident review, whether or not the end user notices.

    Supporting Clients with Data, Not Just Product

    Healthcare partners routinely request not just finished API, but full technical documentation including impurity trend analyses, long-term stability reports, and real case studies from actual clinical deployments. Our teams draw upon in-house pharmacovigilance experience to share guidance in handling, dilution, and common troubleshooting. For each region, we tailor batch QA reports to include the metrics most likely to impact local regulatory filings and hospital protocols. The product proves itself not on certificates, but on the stories and feedback from those who see the direct impact on patients.

    We believe in full partnership with large hospital networks and government purchasing agents. These relationships—built over repeated, transparent batch releases—form a feedback loop that grounds every process shift in real data. Annual partner meetings give us a chance to share recent findings, including any observed trends in resistance or use patterns. If new clinical data suggests a process change may improve real-world outcomes, we adjust production accordingly and roll out new protocols only after validation. The value of these efforts isn’t aspirational: it’s measured in uninterrupted supply, absence of recall, and confidence expressed by health professionals.

    Environmental and Worker Safety: Building a Sustainable Operation

    Manufacturing imipenem involves serious responsibility for environmental impact and workforce health. Beta-lactam facilities must prevent cross-contamination—both between products and with the external environment. We use closed-system handling at every transfer point; air and water leaving the facility pass through purification systems that remove all active pharmaceutical residues. Our environmental monitoring includes regular third-party audits and publishing of emissions metrics. Worker safety comes first; everyone on the line receives regular training specific to beta-lactam sensitivity, spill response, and safe equipment operation. Recent upgrades to our containment units cut down both workplace exposure risk and production downtime during scheduled maintenance.

    Sustainable operation also means regular review of waste disposal and energy consumption. Process engineers collaborate with environmental specialists to minimize any loss of active substance or unnecessary heat discharge. We conduct frequent recycling assessments for all single-use materials. These investments, though often invisible to product users, contribute directly to the reliability and safety of finished imipenem entering the medical supply chain.

    Supervising the Supply Chain from Source Materials to Finished Batch

    Each production cycle for imipenem begins with verified, pharmaceutical-grade starting materials—typically thienamycin intermediates synthesized under strict chain-of-custody protocols. We keep detailed records that tie every material batch to its finished lot number; these records survive repeated review by both regulators and external clients. In the current supply chain environment, transparency in sourcing, production, and distribution earns as much trust as scientific innovation. Our buyers see our commitment every time a new batch ships with full supporting documentation—not just compliance forms, but detailed process maps and chain-of-custody histories.

    Distribution partnerships with global logistics providers ensure the finished imipenem travels under validated temperature and humidity conditions. Real-time tracking technology allows us to alert recipients of any deviations, and our response protocols include backup cooling solutions for rare transit delays. Finished vials either move direct-to-hospital or through central stockpiles maintained at target temperatures, never sitting idle at uncontrolled points in the supply chain. The value in these logistics investments appears in ongoing, incident-free global delivery.

    Listening and Learning: Shaping Imipenem for Tomorrow’s Challenges

    The market for imipenem never stands still. Pathogen profiles shift, regulatory environments tighten, and field experience highlights new procedural gaps or strengths. Every year brings new demands: shorter reconstitution times, new combination therapies, or added stability under extreme transport conditions. Our lab teams study ongoing surveillance data, collaborating with universities and hospital research groups to anticipate potential resistance threats. We remain open to external audits and customer-led quality checks. Our commitment today is to carry forward each lesson into building tomorrow’s best batch—serving medical professionals who depend on imipenem as a last line of defense.

    Unlike description-driven suppliers, we deliver reliability from firsthand experience in every phase of API manufacturing. Each lot of imipenem carries the mark of our ongoing dialogue with pharmacists, infectious disease physicians, production chemists, and supply chain partners. We view our job as more than molecule assembly: it is a trust-based mission, pursued with the steady hands of experience, knowledge, and a resolve to keep high-value antibiotics available worldwide for those who need them most.