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HS Code |
277113 |
| Name | L-Arginine |
| Chemical Formula | C6H14N4O2 |
| Molecular Weight | 174.20 g/mol |
| Appearance | White crystalline powder |
| Solubility In Water | 146 g/L (20°C) |
| Melting Point | 244 °C (dec.) |
| Ph Value | 10.5 - 12.0 (10 g/L, H2O, 20°C) |
| Biological Role | Semi-essential amino acid |
| Taste | Slightly sweet |
| Cas Number | 74-79-3 |
| Source | Animal and plant proteins |
| Common Uses | Dietary supplements, pharmaceuticals |
| Storage Conditions | Keep tightly closed in a dry and cool place |
| Synonyms | Arg, L-Arg |
As an accredited L - Arginine factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | White, sealed plastic bottle labeled "L-Arginine," 500 grams, features dosage instructions, safety warnings, and a batch number for quality assurance. |
| Shipping | L-Arginine is shipped in tightly sealed containers to protect it from moisture and contamination. Packages are clearly labeled and handled in compliance with regulatory standards. During transport, it is kept in cool, dry conditions and away from incompatible substances to ensure stability and maintain product quality throughout shipping. |
| Storage | L-Arginine should be stored in a tightly sealed container, protected from light and moisture. Keep it in a cool, dry, and well-ventilated area, ideally at room temperature (15–25°C). Avoid exposure to heat, humidity, and incompatible substances. Always label the container clearly and keep away from food and drinks. Follow all relevant safety and storage guidelines. |
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Purity 99%: L - Arginine with 99% purity is used in pharmaceutical tablet manufacturing, where it ensures consistent dosage and bioavailability. Molecular Weight 174.2 g/mol: L - Arginine with a molecular weight of 174.2 g/mol is applied in intravenous nutrition, where it facilitates precise amino acid formulation for patient recovery. Particle Size D90<150 µm: L - Arginine with particle size D90 less than 150 µm is used in dietary supplement powders, where it enhances solubility and rapid absorption. Melting Point 244°C: L - Arginine featuring a melting point of 244°C is used in thermo-stable food additives, where it maintains structural integrity during processing. Stability Temperature ≤30°C: L - Arginine stable below 30°C is used in functional beverages, where it retains potency and shelf-life in ambient storage. Endotoxin Level <0.1 EU/mg: L - Arginine with endotoxin level below 0.1 EU/mg is utilized in injectable formulations, where it reduces the risk of pyrogenic reactions. Loss on Drying ≤0.5%: L - Arginine with loss on drying not exceeding 0.5% is applied in clinical nutrition solutions, where it ensures minimal moisture-related degradation. Heavy Metal Content <10 ppm: L - Arginine with heavy metal content below 10 ppm is employed in infant formula preparations, where it guarantees high safety standards. Specific Optical Rotation +26.0° to +27.9°: L - Arginine with optical rotation within +26.0° to +27.9° is used in analytical research, where it confirms chiral purity and biological activity. pH (1% solution): 10.5 – 12.0: L - Arginine with pH 10.5–12.0 at 1% solution is included in topical dermatological products, where it supports favorable skin absorption and stability. |
Competitive L - Arginine prices that fit your budget—flexible terms and customized quotes for every order.
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Years of production experience have shown us that L-Arginine stands out—not because of a clever marketing slogan, but because demand keeps returning from customers in health, nutrition, and pharma. Our crews know the route to quality L-Arginine by memory. Each step, from fermentation to purification, shows up in the final product. Surfaces glisten, drums roll, and our on-site teams keep a careful eye on every phase. It’s not just talk: consistency and purity have to show up in every batch, or the customer will know immediately. We don’t hesitate to act when improvements need to be made. That’s competency built by time and accountability.
Raw materials don’t lie—it’s hard to hide a weak substrate or a contaminated culture. We source amino acid feedstocks from tight-knit suppliers we’ve worked with for years. Bacterial fermentation tanks, temperature checks, precision PH monitoring: each moment in production gets logged and watched. It isn’t about chasing numbers or filling quotas. Our operators know what L-Arginine should look and smell like at every stage. If something seems off, they halt the process, no matter how inconvenient. A rushed job only means trouble later down the line.
Our model for L-Arginine uses the pharmaceutical grade as the baseline because that is what our downstream partners ask for. Specs meet the USP and EP grades, where purity hovers at no less than 98.5%. The moisture content rarely slides above the low single digits. We understand what “low heavy metals” means, so each batch is tested for lead, mercury, and arsenic well below regulatory caps. These numbers carry real weight for those mixing supplements or injecting actives into finished dosage forms.
Crystallization techniques and drying times make more difference than outsiders realize. A dry, free-flowing powder handles poorly if granule size drifts, so our team keeps a running log. We get calls from customers who rely on easy dissolution or predictable compressibility. L-Arginine won’t gum up feeders or burst sachets. If a customer spots flow issues, we’re all over it—sometimes shipping replacement samples and tweaking moisture or sieve time by a matter of minutes. Those small actions echo through the supply chain.
L-Arginine landed in the industry because it works—not just on paper, but in the hands of manufacturers, formulators, and researchers. In our experience, about half our production ends up in sports nutrition powders and capsules. Athletes ask for more blood flow and nitric oxide support. Our technical liaisons talk directly with formulators who want to guarantee solubility and neutral flavor, and they know where trace impurities show up on taste panels. Another big slice of orders head toward pharmaceutical intermediates and API manufacturing, where precise dosing and reproducibility anchor every regulatory submission. Those customers rarely accept deviation because the regulators never do.
The food fortification segment isn’t as large, but we see a steady uptick for infant formulas and medical foods. In those orders, tight control of endotoxins and microbiological contaminants matters because it has to—the market for infant nutrition does not forgive lapses in hygiene or traceability. Each incoming lot connects to a full documentation trail, from fermentation log to final COA.
Plenty of suppliers push L-Arginine, but as producers, our perspective shifts to what it’s like when the batch runs off-spec or a customer line grinds to a halt. The story doesn’t end with a lab test or a certificate. Many resellers never see what it takes to keep microbiological counts under par, or the work needed to scrub a tank for the next batch. Our gear hums with use, and the lessons from downtime keep the next order on schedule.
Every year brings subtle changes. One winter, an uptick in humidity forced us to invest in new dehumidifiers and tweak air flow. Yield rose, but so did staff training hours. As new co-products emerge, we stay ahead on documentation and revalidate our processes against shifting customer and regulatory expectations. Our regular audits—both internal and third-party—don’t happen because someone told us to. Too many years in the industry have taught us the price of neglect.
The world isn’t short of L-Arginine samples. Most differences show up in audits or unexpected inspectors’ visits. With our teams, all process data stays logged, from QC results back to raw material certificates. Batch traceability flows from day one with each order held against a reference sample and documentation stack. We know our stuff gets packed off to high-stakes industries—so no batch ships before our in-house and third-party labs have finished full microbial and purity panels.
We’ve taken lessons from both successful and challenging inspections. Bottlenecks in documentation used to slow down batch release dates. Now, digitized records and well-trained QA staff have trimmed turnaround times for COA delivery and regulatory filings. Current Good Manufacturing Practices aren’t just words. We hold direct, unfiltered feedback from customers. Any discrepancy, and the next batch gets rechecked before repeats pile up in finished goods warehouses.
Plenty of traders chase price lists, but they bear no cost for missed timelines or out-of-spec batches. We’ve lost clients when we cut corners early in our journey. It’s easy to forget the lessons in a boom season, but the sting from recalls and rejections shapes real manufacturing. A kilo of L-Arginine might look cheap online, but the losses from customer downtime, expensive recall, or regulatory setback pile up fast. We learned to factor those costs into our daily operations, so we calibrate every lot like the dashboard tells the real story, not just the sticker price.
Distances matter, and delays compound. Orders going by air to tight-deadline launches need firmer in-house logistics. Our warehouses run inventory checks daily, and our team ships against live batch allocation. We’ve changed packaging to better handle rough transit, and tweaked pallets and liners to cope with both humidity and compression on long routes. Every return or damage claim has prompted a review. Our documented improvements grew from bitter experience, not manuals.
Customers don’t just ask for a product; they want straightforward support. Over the years, our technical teams have walked partner factories through everything from fine-tuning blending speeds to optimizing solubility profiles. Some formulation partners brought tricky interactions to the table, like vitamin blends that clump or degrade. Our advice came from experiments on our own lines—hands stained, logs filled, process parameters tweaked mid-run until the answer emerged. That’s different from a generic help page or a one-time call.
We run repeat stability studies in response to tough client questions. Sometimes a customer needs a shelf-life extension or proof the product holds up under tropical shipping. We commit to these trials because repeat orders hinge on results, and product managers betting their launch dates won’t accept theory. Our in-house bench and pilot labs have run thousands of mixes so customers don’t waste time or materials running down dead ends on their side. One big benefit of being the originator—not a broker with second-hand knowledge.
The process is never finished. Small changes deliver big wins. One year, process engineers introduced a new filtration train; clearer product, fewer off-tastes, and lower microbiological outliers followed. In another cycle, automation slashed sample turnaround times, letting us head off variability before it reached a bulk drum. We track instrument calibration hard. People who rely on overnight testing see faster results—not just because we bought new machines, but because we built a system where missed data prompts immediate maintenance.
Our teams run pilot trials for custom versions at partner request. Coarse grades, micronized powders, tighter heavy-metals, higher solubility—direct feedback steers our process change agenda. We maintain close relationships with equipment vendors and respond quickly as new market needs surface. What we know about amino acid fermentation or high-volume purification comes from years of mistakes, trials, and incremental gains.
Most buyers see L-Arginine as a simple white powder. That’s true at a glance, but inside a blend, in a critical process, small things matter. Some competitors supply product from older production lines—those can bring higher process contaminants, uneven flow properties, or wider batch variability. We’ve stripped out dead storage points and optimized line cleaning to curb cross-batch carryover. Some buyers discover lesser material only after poor performance downstream or a failed assay. We meet customers after they learn the hard way.
Every increase in process efficiency, every adjustment to particle sizing, and each new cleaning cycle builds up reliability customers feel. For blends, caking and sticking kill productivity; in tablets, compressibility skips or machine jams can waste loads of expensive actives. Each feature connects directly to real experience, like running a 12-hour compounding shift only to face an unplanned down day from faulty granules. Our relationships with downstream partners deepen as we share insights from our own labs and production lines.
The biggest gap between manufacturers and traders shows during a crisis. We’ve weathered supply crunches, logistics delays, import freezes, and regulatory news. Only experience tells you to keep a critical buffer stock ready or to diversify suppliers for trace nutrients in the fermentation cycle to shield against unplanned shortages. We’ve worked side by side with customs brokers, logistics partners, and regulatory advisors to get urgent shipments cleared. Lessons from each scramble wrote our playbooks for risk controls.
Sensible stock policy, cross-training for plant operators, backup supply chains, and digital records—all of these grew out of mistakes or sudden disruption. Years spent in manufacturing mean we don’t need to bluff about contingency: we’ve lived through the full arc from raw purchase to shipment. Our approach reflects what’s actually needed to meet promised shipments, not just what looks neat on a site or brochure.
New industries surface with new challenges. For us, evolving our product means listening to outlier requests and following up with process pilots. The emergence of plant-based protein blends or new tailored nutrition standards led to stricter amino acid profiles. We responded—not with PR, but with extensive in-house testing and consultation with formulation experts. The push for non-GMO sourcing and animal-free processing triggered documentation reviews, and we verified every input. These changes carry cost and effort, but our team sees them through because that’s where new business begins.
Quality isn’t just a standard; it’s a moving target. A request for residue limits might seem tough, but the real work happens in how quickly our process team adapts. Ideas for new grades or co-crystals come up in discussion with formulation scientists. Each new requirement from sports nutrition companies, pharma brands, or specialty food makers prompts internal debate and innovation. While some changes start as a hassle, we recognize them as an investment—once we nail a tighter spec, more partners follow.
We regularly send technical teams into partner facilities. What matters isn’t a pre-packed sales pitch, but the direct questions faced by production managers—how does this batch run in a larger mixer; what’s the dusting rate; does the product really meet declared shelf life in a hot, humid warehouse. Meeting these questions with concrete experience, not guesswork, earns trust and loyalty. Our site visitors see process flow for themselves, ask about equipment, and learn the choices behind our batch runs.
Some of our longest relationships began with customer complaints. Non-dissolving material, off-grade moisture, delayed shipments: these push manufacturers to rethink and raise standards. The best insights come from these tough partnerships and the solutions built together. Years of direct customer engagement mean every L-Arginine shipment reflects a back-and-forth dialogue, continuously shaped by hands-on experience, not distant transactions.
Quality in manufacturing accumulates with each production cycle, each on-site audit, and every new training for operators and lab technicians. Our product’s reputation rests on real-world performance, not one-off claims online. We keep detailed process records, reinvest in new equipment, and rely on direct feedback loops from end-product markets. These habits build up to customer confidence batch after batch, year after year.
Final quality isn’t up for debate on the production floor. Safety checks after line changeover, extra sampling for microbial risk in warm weather, granule size mapping during peak humidity—each of these choices accumulated from past errors or close calls. The reality in chemical manufacturing is not a glossy brochure or looping video. It’s the tangible result: batches that meet tough specs, customers who return, and processes that keep up with changing regulations and market expectations. In each shipment of L-Arginine, that commitment is real, direct, and longstanding.
New trends always surface: sustainability demands, ongoing regulatory tightening, customer demands for traceability. We keep building on the fundamentals learned through daily production, hands-on troubleshooting, and direct market interaction. L-Arginine’s role keeps growing—and the hands that make it don’t chase quick wins, but rely on hard-won knowledge in fermentation, purification, and responsive customer service. This focus built our track record, shaped our improvements, and keeps our teams ready for what comes next.
For everyone from supplement brands to research labs and pharma clients, consistency and transparency define our relationships. Every challenge, every request for change, and every feedback loop returns us to the fundamentals: skilled teams, robust process controls, and service rooted firmly in our ground-floor manufacturing experience. That’s where lasting value in L-Arginine truly comes from.