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HS Code |
496130 |
| Chemicalname | 5-[(Bis(2-Chloroethyl)Amino]-2,4-(1H,3H)Pyrimidinedione |
| Synonym | Carmustine |
| Molecularformula | C5H9Cl2N3O2 |
| Molecularweight | 214.05 g/mol |
| Casnumber | 154-93-8 |
| Appearance | Yellowish crystalline solid |
| Meltingpoint | 30-32 °C |
| Solubility | Soluble in alcohol and lipids; sparingly soluble in water |
| Boilingpoint | Decomposes before boiling |
| Pubchemcid | 2577 |
| Smiles | C1=NC(=O)N(C(=O)N1)N(CCCl)CCCl |
| Logp | 1.5 |
| Storagetemperature | 2-8°C (Refrigerator) |
As an accredited 5-[(Bis(2-Chloroethyl)Amino]-2,4-(1H,3H)Pyrimidinedione factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Amber glass bottle, 25 g net weight, tightly sealed with tamper-evident cap, labeled with chemical name, hazard symbols, and handling instructions. |
| Shipping | The chemical 5-[(Bis(2-Chloroethyl)Amino]-2,4-(1H,3H)Pyrimidinedione must be shipped as a hazardous material. It requires secure, leak-proof packaging, appropriate hazard labeling, and adherence to all relevant regulations (such as IATA, DOT, or UN guidelines). Shipment should be in temperature-controlled, ventilated cargo with handling by trained personnel only. |
| Storage | `5-[(Bis(2-Chloroethyl)Amino]-2,4-(1H,3H)Pyrimidinedione` should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area away from direct sunlight, heat, and incompatible substances such as strong oxidizers. Handle in a designated chemical storage cabinet, preferably with secondary containment. Always label containers clearly, and restrict access to authorized personnel only. Use appropriate PPE when handling. |
Applications of 5-[(Bis(2-Chloroethyl)Amino]-2,4-(1H,3H)Pyrimidinedione in Industrial ManufacturingAs an established manufacturer, we supply 5-[(Bis(2-Chloroethyl)Amino]-2,4-(1H,3H)Pyrimidinedione to key industrial sectors requiring advanced performance and rigorous compliance. Below are the main downstream applications based on direct market usage, with details relevant to procurement, technical teams, and production managers. 1. Active Pharmaceutical Ingredient (API) Synthesis – Antineoplastic AgentsThis compound serves as a crucial intermediate in the synthesis of certain cytotoxic antineoplastic APIs. Pharmaceutical manufacturers use it for producing drugs like alkylating chemotherapy agents, where strict control over purity and functionality is vital for regulatory filing and patient safety. Its role in the reaction chain involves nucleophilic substitution and heterocyclic ring modification in dedicated GMP facilities. Industry compliance standards
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2. Synthesis of Specialty Chemical IntermediatesFine chemical producers employ this material for targeted manufacturing of pyrimidine-based intermediates, which are subsequently used in the development of research reagents and custom synthesis building blocks. The material’s bis-alkylating functional group enables specific halogenation and thiolation reactions for specialty downstream molecules needed in high-complexity synthesis projects. Industry compliance standards
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3. Precursor for Laboratory Diagnostic ReagentsManufacturers of diagnostic raw materials utilize this compound within the segment of laboratory-grade reagents. It acts as a controlled agent in the preparation of cytostatic controls and marker substances for in vitro chemical assays, enabling targeted pathway inhibition studies. Its consistent reactivity profile ensures batch-to-batch reliability critical for reference reagent lots. Industry compliance standards
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4. Chemical R&D Reference MaterialResearch organizations and contract development companies procure this compound as an analytical reference material. It is essential for method validation, impurity profiling, and structural elucidation within regulated environments. Stringent batch certification meets the traceability demands for advanced R&D and regulatory filings. Industry compliance standards
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Putting hands to equipment, observing the real shifts in raw material quality, and solving practical bottlenecks every day, we stand squarely as a direct manufacturer of 5-[(Bis(2-Chloroethyl)Amino]-2,4-(1H,3H)Pyrimidinedione. This product emerged from years of investment in synthesis control and hands-on knowledge of where reagent variability leads. We avoid fixing weak points in the market by focusing on stepwise optimization, so the outcome fits tough regulatory and technical expectations from pharmaceutical, research, and chemical applications.
Working with this compound day-in, day-out, we know that consistency in the molecular structure means everything for downstream customers. Our batches reflect direct process oversight. Typical output comes in the pure, white crystalline form, with melting points monitored during crystallization – not all sources can promise this stability without batch segregation slipping into routine. Moisture and particle size stay in tight ranges. On the floor, trace ions and residual solvents matter: not just on a specification sheet, but in actual product performance for those running bioactive syntheses or advanced polymerizations.
Quality headaches often start from the upstream. Easy-to-miss steps like filtration timing, or filtration material selection, alone change the game by shifting impurity profiles. We handle solvent reclamation and waste separation to avoid contamination that creeps in with recycled charge stocks. Every kilogram finishes with both HPLC and NMR checks: we owe that approach to years spent troubleshooting failures in clinicial-grade and technical-grade projects.
We’re not remote from the valves, tanks, or reactors. Our preparation of 5-[(Bis(2-Chloroethyl)Amino]-2,4-(1H,3H)Pyrimidinedione leverages a batch process driven by strict temperature and pressure controls during chlorination and amination. Small deviations at these points affect impurity carryover, and only hands-on adjustments – the kind that follow visible reaction color and titration data – give repeatable results. Solvent choice, acid acceptance, and cooling rates respond to practical lessons, not theoretical ideals documented in patents. Our chemists know the smell of problematic lots and intercept issues before clearance to blending and package.
Operator training bears as much weight as the instrument calibration. Relying only on paper protocols means nothing when loaders recognize suspension or pH changes before the numbers do. That keeps downstream qualities like crystallinity, dusting tendency, and color within scope. It also shortens downtime due to batch rework and allows faster resolution if customer labs report something off-spec.
Industry clients tell us plain: changes in trace impurity or melting point can mean real differences in performance, whether for an antineoplastic route or an advanced intermediate. We listen as much as measure. Sometimes, a pharmaceutical group detects a new side product after changing vendors. Often, the root cause circles back to small, undetected changes from a supplier who never made the batch directly. We stand on the floor, tuning inputs and outputs every week, because those small odds and ends – humidity, trace metal drag, solvent loads – shape user results.
Raw data from our own reactors tells us that winter humidity spikes and summer cooling limitations can shift key parameters. We document every deviation and share real-time updates with upstream and downstream teams. Not every synthesized lot goes to market. Rejecting batches doesn’t just keep specifications tight – it protects the reliability we’ve built for contract and own-label customers who face regulatory scrutiny. The weight of compliance falls heavier on those who mix products from multiple indirect sources; we bear it upfront, so users do not face the domino effect of hidden impurities.
Manual hazard control and direct operator input matter far more than any printed protocol or remote assurance. We tackle risks from bis(2-chloroethyl)amine handling and pyrimidinedione stabilization with redundant ventilation, real-time air monitoring, and buddy systems unique to the process, not lifted from general chemical SOPs. Our workers advise on glove changes, PPE improvements, and engineering controls every quarter, since they see exposure risks before they develop into incidents.
Missteps in handling volatile reagents – even by half a percent – invite batch failure or worse. Even after years of operation, fresh operator feedback results in small but crucial shifts in staging and transfer protocols. By assigning experienced operators for all critical steps, and tracking near-miss events, we’ve lowered incident rates and improved response times to anomalies that generic safety manuals would overlook.
We don’t see waste management or effluent treatment as checkboxes. Chloroethyl amines pose direct risk to aquatic environments. We run onsite biological treatment units, backed by offline analysis after every large synthesis campaign. Tracking actual versus expected disposal streams taught us where unexpected losses come from; routine sampling in plant drains and sump tanks turned up byproducts that literature glosses over.
Solvent recovery, air control, and drum management came from lessons learned after repeated compliance audits. We treat environmental monitoring as ongoing, not as snapshots during annual inspections. All changes in chemical usage or output involve full review of end-point emissions. This discipline works deeper than compliance – it boosts genuine operating efficiency, saves cost on solvents and reagents, and reduces local impact where our staff live.
We hear feedback from those who run organic synthesis, medicinal chemistry, and academic labs: supply inconsistencies burn hours of work. Each impurity or unknown peak in NMR triggers reruns and troubleshoots, adding stress and delays. Many have switched from distant traders after facing uncertainty in critical projects. Direct manufacturing focus, with routine batch histories and traceable origin, takes out the guesswork.
Scale-up challenges reach a new level with this compound. Many labs can prepare a few grams for one-time use. Delivering hundreds of kilograms without cumulative impurity build-up or material handling missteps calls for ongoing investment, not one-time luck. We tweak process controls based on real scale, plant layout, and equipment changeover, so users do not shoulder unexpected changes when batches scale up from kilo lab to pilot plant.
Experience shows that batch differences drive outcomes for sensitive projects, whether in early-stage pharmaceutical research or in specialized monomer production. Indirect channels often blend materials, which dilutes the ability to trace a single anomaly back to its source. Direct manufacturers tie each lot to its origin, adjustment, and actual process time, which lets investigation resolve issues quickly. Over time, researchers told us some resellers lack transparency when material fails; we address this with accessible data packages, retained reference samples, and operator-accessible logs.
Third-party vendors sometimes pass off material of variable origin. Pricelists frequently look comparable but hide differences in batch date, remanufacturing history, or storage condition. Process scientists require consistent response in biological tests, synthetic steps, or material properties. Direct access to the manufacturing team speeds up technical problem-solving, so long as users tap into the deeper pool of process knowledge gained from first-hand synthesis and troubleshooting. Engineers on our floor spot source-specific handling tips that text or email alone cannot transmit.
Downstream users depend on batches with minimal batch-to-batch variation, since process reproducibility at their site links directly to our lot-to-lot control. Every loading, blending, or formulation step in the customer’s plant leans heavily on material consistency. We collaborate directly on process integration recommendations, drawn from feedback and joint projects with pharmaceutical and specialty chemical teams. End-user needs flowed back into our adaptation of drying, sieving, and packaging approaches, after seeing the everyday hurdles in their labs.
We encourage open feedback so necessary tweaks become possible. Sometimes, our partners required fine adjustments in moisture content, or particular sieve fractions to suit automated feeders. Real-world requests replaced theoretical settings, bolstering our batches for both manual and automated dosing systems. Periodic site visits and shared troubleshooting accelerated new runs, saved costs, and bolstered safety for all.
Direct feedback from logistics and warehousing tells us that even well-packaged shipments face threats in transit: vibration, temperature spikes, and mechanical shock all count as invisible variables. Finished material leaves in robust drum or lined bag configurations, fit for both air and sea freight, but our warehouse staff and partner shippers test every batch for new risk points. Seasonal delays, customs processes, and regulatory shifts all pile on unpredictably. Our on-site shipping team tracks lot progress, not just for recordkeeping, but for direct intervention when storms, strikes, or customs halts occur.
Customers told us that missed documentation or delayed certification lead to rework and lost time. We invest in accurate, up-to-the-minute batch record retrieval, so customers facing audits or regulatory checks do not get left scrambling for validation. Original reports come from our own laboratories – not outsourced templates – so they hold up under regulatory review.
Direct manufacturers take on the responsibility of process change, risk management, and user feedback, tied tightly to actual operating records. We hold not just the need to meet minimum specifications, but to handle nonconformities and trace any anomaly to its root cause. Large-scale users noticed that previous traders struggled to address recurring issues over time, while as a primary producer, tracing the root to a process change or raw material lot is only a daily reality here.
Adapting our process to new regulatory signals or technical requirements happens onsite, without endless back-and-forth between intermediaries. By placing R&D and production feet away from each other, optimization cycles shrink from months to days. We’ve seen how faster adaptation to customer need, real-time batch feedback, and proactive incident follow-up directly benefit client outcomes, save cost, and protect both workers and end-users.
Whereas many traders issue broad claims of quality or compliance, we invite partners to visit, audit, and test right alongside our production crew. These open-door practices incentivize a culture where ownership—all the way to the reactor and warehouse—trumps blame-shifting. Our teams build trust through direct communication, practical adaptation, and joint problem-solving.
Regular auditing of internal processes, supported by operator-driven change logs and root-cause analysis, shrinks error rates and sharpens long-term process stability. We follow up every customer complaint or out-of-spec report with a systematic review, pulled directly from operator entries and product histories, not just from management summaries. Issues with yield, residual solvent, or crystalline habit get measured, reviewed, and integrated into the next synthesis campaign.
Instead of batch-blending or quick-fixing, we prefer batch reworks or targeted process corrections, since mixing flawed and good material only invites recurring failures. New projects move forward after review of both technical findings and ground-level operator suggestions, refining the process with each cycle. Ongoing dialogue with key customers brings new proposals for energy-saving or workflow improvements, leading to practical shifts in aging, drying, or cleaning steps for further cost control and environmental gains.
Direct production of 5-[(Bis(2-Chloroethyl)Amino]-2,4-(1H,3H)Pyrimidinedione rests on shared experience between frontline production and technical teams. Each lot reflects a history of technical adaptation, frontline feedback, and regulatory attention built up across hundreds of runs. We think of product value in terms of actual reliability, consistent performance, and support throughout the product lifecycle — not just specification compliance or headline rates. The value traces directly to hands-on manufacturing, persistent process improvement, environmental discipline, and day-to-day customer engagement.
In the fast-moving specialty chemical world, supply assurance, batch reproducibility, and open technical exchange define the difference between success and persistent bottlenecks. We take pride in delivering these not through distant supply chains or paper assurance, but by holding the levers ourselves, in the factory where product, people, and process work side by side.