|
HS Code |
459135 |
| Generic Name | Tofacitinib Citrate |
| Brand Name | Xeljanz |
| Drug Class | Janus kinase (JAK) inhibitor |
| Chemical Formula | C18H21N7O2 · C6H8O7 |
| Molecular Weight | 504.49 g/mol (base), 504.49 + 192.12 g/mol (citrate salt) |
| Indications | Rheumatoid arthritis, psoriatic arthritis, ulcerative colitis |
| Dosage Form | Tablet |
| Route Of Administration | Oral |
| Prescription Status | Prescription-only |
| Mechanism Of Action | Inhibits Janus kinase enzymes to reduce immune system activity |
| Side Effects | Increased risk of infections, headache, diarrhea, hypertension |
| Contraindications | Known hypersensitivity to tofacitinib or its excipients |
As an accredited Tofacitinib Citrate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Tofacitinib Citrate, 25g, securely sealed in an amber glass bottle with tamper-evident cap, labeled with product details and safety information. |
| Shipping | Tofacitinib Citrate is shipped in tightly sealed, chemical-resistant containers to prevent contamination and moisture exposure. The chemical is transported under controlled temperature conditions, typically at ambient or room temperature, and labeled according to regulatory requirements. Safety documentation (MSDS) and hazard labeling accompany each shipment for secure handling and compliance. |
| Storage | Tofacitinib Citrate should be stored in a tightly closed container at room temperature, typically between 20°C to 25°C (68°F to 77°F), and protected from moisture, light, and excessive heat. The storage area should be well-ventilated, away from incompatible substances, and access restricted to authorized personnel. Always follow local regulations and manufacturer's guidelines for safe chemical storage. |
Competitive Tofacitinib Citrate prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615365186327 or mail to sales3@ascent-chem.com.
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Tel: +8615365186327
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Producing Tofacitinib Citrate as a manufacturer draws on deep process expertise, not just a recipe. Every batch starts with top-grade raw materials, sourced directly, so traceability and purity remain in our own hands. Our reactors operate in controlled environments, managed by trained staff through every synthesis step. Anticipating challenges in the scale-up from bench to kilo-lab, we designed our process with reliability and safety at the core. Years of investment in outgassing, solvent handling, and crystallization technique have shaped a product suited for the steep demands of pharmaceutical developers.
Tofacitinib Citrate stands as a small molecule inhibitor known for targeting Janus Kinase pathways. The molecule earned attention for its oral activity and its ability to suppress immune and inflammatory signaling. Workplace understanding of its physical form, from a crystalline white to off-white powder, comes from direct observation in our labs with each lot. Each drum leaves our plant matching defined QC benchmarks — water content by Karl Fischer, residual solvents by GC, purity by HPLC. Production parameters are set not by guesswork but by feedback from customer applications and regulatory reviews. No routine process proceeds without real data from the wet chemistry, not copied from upstream distributors or online tables.
Not all Tofacitinib Citrate is equal because every lab has their own concept of “pure”. Our process stabilizes particle size distribution and flow characteristics so packaging and downstream handling become consistent. Assay regularly tops 99% by HPLC, with single-digit ppm total impurities. Residual solvents, a hot subject with final-dosage regulatory filings, commonly measure well under ICH Q3C thresholds. Moisture content seldom drifts above 0.5%. UV and NMR checks confirm structural identity, supporting purity beyond just chromatography peaks. Some clients ask about heavy metals or elemental analysis, and we test each batch so no label claims float unsupported in paperwork. The attention has one simple motive: everything that leaves our gates must work as described in the customer’s hands, from early R&D to scale-up batches for clinical manufacture.
Day to day, most of our output heads for either pharmaceutical or academic research use. Formulators look for a consistent, well-characterized active ingredient, avoiding batch-to-batch headaches that slow down stability or bioequivalence studies. Scale-sensitive chemists and pilot plants ask about material handling, agglomeration, compaction, and blending — precisely because they have lived through difficult batches with subpar crystallinity or dusty fines. A molecule like Tofacitinib Citrate asks for careful tableting, so our focus remains tuned to the actual end process, not just the initial synthesis. In this field, simple points like storage conditions or vial sealing can mean the difference between an uninterrupted line and a stalled batch. We learned by solving problems deeper in the supply chain, not just quoting numbers off an SDS.
Plenty of suppliers offer Tofacitinib Citrate, but direct manufacturers set themselves apart on transparency, feedback, and accountability. We answer questions from those who use our compound — not just inventory brokers — so answers come from chemists and operators, not sales reps. Some peer manufacturers cut corners on drying or skip extra rounds of solvent exchange; we’ve seen where that path leads, usually with rejected batches and costlier investigations later. Shipping in inert atmosphere packaging, routine monitoring of particle size, and 100% traceable logbooks have proven their worth as insurance against post-shipment complaints. When projects call for tighter specification on polymorph content or control of enantiomeric excess, we already have protocols and retain samples to support new validation.
Operating our own reactors and crystallizers means full knowledge — not just theoretical — about what goes into each lot. Each drum carries a batch record tied to raw material sources, process temperature records, analytical results, and cleaning logs. Regulators demand these details because the customer deserves confidence, not just an assurance that paperwork checks out. As a manufacturer, we also answer for supply chain interruptions or non-conformities. If a deviation occurs, all hands get involved to pinpoint cause, retrace steps, and prevent future repeat. We built our operation to allow real-time adjustment, not after-the-fact blame shifting.
Clients preparing for preclinical or first-human use run into strict regulatory timelines and documentation. We adapt by holding stock for urgent shipments, preparing extra documentation such as full impurity profiles, and sharing historical trend data so clients trust what they see batch to batch. As global interest in JAK inhibitors has grown, so have demands for backward compatibility. New projects may request a switch from bench-scale to several kilos, and our facility is designed for that jump without quality compromises. In house, we run stress testing to predict shelf-life, not waiting for outside requests to catch issues with photostability or hygroscopicity.
Buying Tofacitinib Citrate, small differences matter. We recognize that some customers need clinical trial material with FDA referencing every step of the route; others prefer a cost-effective grade for cell assays or animal experiments. Our offerings reflect these priorities, with dedicated equipment and documentation for GMP-compliant intermediate production, and separate lines for research batches. We listen to feedback about solubility, filtration, and compatibility issues, updating our procedures so customers see fewer recurring obstacles in formulation or testing. Over time, this feedback loop has produced small tweaks — from mesh size changes to adjustments in micronizing step length — driven by the needs of actual product users, not whiteboard theorists.
What sets an established manufacturer apart is a willingness to accept scrutiny from outside auditors, partners, and even competitors. We welcome technical due diligence, allowing third-party chemists to inspect our process logs, material handling rooms, and analytical instruments. Knowing the mechanics of every reaction step means we prepare for customer needs even before they arise. For example, recent years have brought concern about nitrosamines and unexpected contaminants in drug substances. Our QC group routinely runs screens for these and updates analytical protocols as literature evolves; it is not enough to chase retrospective compliance.
Manufacturing Tofacitinib Citrate involves solvents, reagents, and process hazards that deserve respect, not shortcuts. We invest in exhaust systems, dust containment, real-time VOC monitoring, and operator PPE so nobody pays for speed with their health. Our waste streams are treated and tracked to avoid surprise inspections or fines, because we live where we work. Recognizing that responsible chemical production draws scrutiny from communities and regulators alike, we keep transparent records for emissions and energy use. Efforts here are practical, not just responses to headlines or public concern.
In recent years, final users have asked about DMF registration, TSE/BSE statements, and US/EU pharmacopeia alignment. We prepare supporting documentation ahead of requests, working with regulatory consultants and industry bodies so our paperwork travels smoothly through agency review. Most approval setbacks come from missing technical detail or inconsistent documentation. By managing every process step, we help shrinking project timelines remain intact, avoiding the supply chain surprises that grow when outsourcing pieces to low-bid processors.
Experienced scientists recognize when an active ingredient performs differently across projects. We support clients with real-world troubleshooting tips — like handling powder flow in high-shear mixers, or improving dissolution in model tablets — based on years of running and adjusting the same processes. It does not hurt that our technical staff have backgrounds making, not just specifying, small molecules; lessons learned chasing crystallinity or investigating failed solvent recovery bleeds into every new order. Problems get solved not by denying them, but by pooling practical insight from both sides of the plant wall.
Pharmaceutical partners often request new thinking — can we offer a more flowable powder? Can we adjust citrate counterion content for improved stability? Questions like these keep our team alert, not just repeating last year’s recipe. Trying new particle engineering routes, co-processing innovations, and close partnership with downstream formulators means every shipment adapts to what the industry really needs. While scale-up introduces demands for larger volumes, we maintain our core approach, adjusting agitation, recrystallization, and drying conditions to match increasing batch sizes without compromise.
We recognize that supplying Tofacitinib Citrate means more than just moving barrels out the door. Success comes from supporting researchers, developers, and QA specialists at every project stage. Early conversations often focus on expected impurity profiles or process validation. As projects mature, attention shifts to audit preparation, long-term stability testing, and multi-site batch reproducibility. We build documentation and support systems, so regulatory and analytical questions receive timely answers. A successful drug developer never runs alone — it revolves around capable partners at every process link.
Stories circulate of fake or adulterated API entering supply chains, creating legitimate worry. Our teams respond with physical tamper seals, verifiable digital records, and routine sampling to confirm every lot’s identity before, during, and after transport. By making our supply chain short and closed, we reduce gaps where problematic product might enter. When clients ask for extra reassurance, we prepare third-party certificates and encourage independent retesting, because we would rather answer tough questions than smooth over risk.
Tension in the API market raises practical concerns, from price spikes to raw material shortage. Our purchasing group scouts global trends in precursor supply and, where possible, keeps diversified sources to buffer against volcanoes, floods, or geopolitical shocks. We share these realities with our partners openly so project plans adjust to production timelines grounded in the real world, not just hopeful forecasts.
Many of our clients share insights and data, reporting back about unexpected findings in scale-up or formulation. Our manufacturing team adapts, adjusting process conditions, tweaking purification protocols, and updating technical sheets after real data rolls in. These two-way conversations have led to process improvements and, sometimes, entirely new product grades. We study published literature and learn by visiting research teams, closing the typical divide between manufacturer and end-user. Repeat customers tell us it is these practical details that save the most time and trouble across years of evolving JAK programs.
Every kilogram of Tofacitinib Citrate produced comes with a history of problem-solving. Over the years, we’ve seen the temptations of taking shortcuts, met the rush for faster cycle times, and experienced how one mishap can set back a research project. Direct knowledge from lab scale to plant batch keeps us grounded. By holding onto strong process controls, continuous operator training, and on-the-ground quality oversight, we deliver not just an API, but a foundation for further innovation.
The world of chemical manufacturing revolves around real relationships, direct knowledge, and adaptability to client goals. Every new project tests our commitment to detail and process integrity. For those searching for dependable Tofacitinib Citrate — free from supply chain guesswork or inconsistent lots — the answer comes from a direct, experienced approach. We expect and welcome questions, knowing that client partnership, not one-way supply, shapes a thriving pharmaceutical future.