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HS Code |
835721 |
| Chemical Name | L-Alanine |
| USP Grade | USP |
| CAS Number | 56-41-7 |
| Molecular Formula | C3H7NO2 |
| Molecular Weight | 89.09 g/mol |
| Appearance | White crystalline powder |
| Solubility | Soluble in water |
| Melting Point | 297 °C (dec.) |
| pH (1% solution) | 5.5 - 7.0 |
| Assay | ≥ 98.5% (on dry basis) |
| Specific Rotation | +14.3° to +15.2° |
| Storage Condition | Store in a cool, dry place |
| Odor | Odorless |
| Synonyms | 2-Aminopropanoic acid |
| Origin | Fermentation or synthetic |
As an accredited L-Alanine-USP factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | L-Alanine-USP is packaged in a sealed, white HDPE bottle containing 500 grams, labeled with product name, batch number, and handling instructions. |
| Shipping | L-Alanine-USP is shipped in tightly sealed, food-grade containers to prevent contamination and maintain quality. The chemical is stored and transported at ambient temperature, away from direct sunlight and moisture. All packaging is clearly labeled and complies with relevant safety and regulatory guidelines for pharmaceutical-grade raw materials. |
| Storage | L-Alanine-USP should be stored in a tightly closed container, in a cool, dry, and well-ventilated area. Protect it from moisture, direct sunlight, and sources of heat and ignition. Store at controlled room temperature, typically 20-25°C (68-77°F). Keep away from incompatible substances, such as strong oxidizing agents. Ensure proper labeling and restrict access to authorized personnel only. |
Applications of L-Alanine-USP in Industrial ManufacturingL-Alanine-USP is a pharmaceutical-grade amino acid widely adopted by regulated manufacturers across several demanding downstream sectors. As the direct producer, we supply L-Alanine-USP for industries where ingredient purity, process consistency, and regulatory compliance drive product integrity. Below, we outline concentrated application scenarios where this material is essential to specific industrial formulations and end-product performance. 1. Parenteral Nutrition Solutions ManufacturingPharmaceutical companies incorporate USP-compliant L-Alanine as a crucial nitrogen source in compounding total parenteral nutrition (TPN) admixtures. Controlled addition of this ingredient, with strict adherence to monograph standards, supports essential amino acid profiles for intravenous feeding. The amino acid is blended during sterile mixing of amino acid solutions and undergoes filtration, bulk sterilization, and fill-finish steps under cleanroom GMP. Finished TPN products are shipped as single-dose or multi-litre infusion bags or vials, destined for hospital or clinical use. Industry compliance standards
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2. Infusion-Grade Hemodialysis Concentrate ProductionDialysis concentrate manufacturers select validated L-Alanine-USP for inclusion in hemodialysis solutions to support efficient removal of metabolic wastes and to help mitigate amino acid deficiencies in patients undergoing renal therapy. QC departments test each incoming batch for monograph compliance, then dose the ingredient into batch tanks together with buffer salts and other amino acids. The concentrate is further purified, standardized, and packaged for direct use in medical dialysis machines. Industry compliance standards
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3. Food-Grade Protein Hydrolysate and Beverage FortificationNutritional manufacturers employ L-Alanine-USP as a direct addition for amino acid enrichment in protein hydrolysates, functional drinks, and specialty nutrition powders. The ingredient’s sweet taste profile and high solubility make it suitable for beverage premix systems, and its purity profile allows formulation managers to meet local and international food additive standards. Dosing occurs after protein hydrolysis or before final blending, followed by spray drying, granulation, or aseptic liquid bottling. Industry compliance standards
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4. Chiral Intermediate for Peptide Synthesis in API ManufacturingActive pharmaceutical ingredient (API) manufacturers integrate L-Alanine-USP as a protected amino acid building block in solution-phase and solid-phase peptide synthesis. The compound’s high enantiomeric purity supports synthesis of stereochemically-defined peptide pharmaceuticals and diagnostic peptides. Chemists introduce the raw material during Fmoc/Boc-protected stepwise coupling operations; finished peptides undergo cleavage, purification, and analytical QC before formulation or export. Industry compliance standards
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5. Biotechnological Fermentation Media ComponentProducers of amino acid, enzyme, and secondary metabolite fermentation products incorporate L-Alanine-USP as a defined nitrogen and carbon source in controlled fermentation media. QC-tested lots are weighed and dissolved as part of nutrient feed pre-mixes prior to inoculation. In bioreactor operations, manufacturers monitor substrate consumption and regulate L-Alanine dosing to achieve targeted profiles, optimizing yields during fed-batch and continuous fermentation cycles. Industry compliance standards
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Our experience making L-Alanine-USP stretches back decades, with process innovations shaped by the ever-rising bar of regulatory scrutiny. As a manufacturer deeply involved in both large-scale and high-purity batches, we know reliability begins on the production floor. With every lot, we focus on crystallization methods that consistently deliver fine, white, free-flowing L-Alanine that passes USP monographs in both purity and performance. There is no shortcut when serving pharmaceutical clients, who expect material that integrates directly into their finished dosage forms—our work must prove out batch after batch, year after year.
L-Alanine-USP flourishes as a building block across solid and liquid dosage forms because its structure falls naturally in line with both functional excipient and pharmaceutically active roles. In production, every incoming raw material goes through identity verification, then our reactors and crystallizers sharpen out impurities using methods honed through countless milled kilos. At the endpoint, the compound aligns every assay, heavy metals threshold, and microbiological parameter that the USP compendium demands. Moisture, particle morphology, and solution clarity vary based on the temperature and pH of successive processing steps—fluctuations we sidestep through constant physical testing, not just paper records.
L-Alanine, while the simplest of proteinogenic amino acids, pulls more weight than it is often credited for. In parenteral nutrition, it supports critical care recovery by serving as both an energy substrate and a precursor for glucose—roles that put the burden of safety on the raw ingredient supplier. A hospital pharmacist seldom wants to wonder if an excipient batch could be the source of a deviation; the stakes are measured in patient outcomes, not just regulatory fines. For us, producing L-Alanine that reliably converts to pyruvate in biochemical pathways signals the chain reaction of trust in our material—measured in exacting bacterial endotoxin and pyrogen testing taken from each batch.
In oral formulations, tableting characteristics and flow properties steer product design. Too much moisture or uneven particle sizing will hold up tablet presses, invite clustering, or prompt downstream rework. We continually refine our precipitation and drying stages to minimize lot-to-lot differences in physical appearance, as even subtle shifts cause hang-ups at the next manufacturer’s line. When aiming for extended-release blends or multi-amino acid tablets, clarity about what moves in the process is essential. Oversized, powdery, or sticky material drains both time and labor at every link.
A spec sheet tells only part of the story. At our plants, purity isn’t just an assay value; it is mirrored in the quiet routines we stick to with every major production run. Chromatographic analyses—both HPLC and TLC—are more than regulatory requirements for us; they become the daily litmus for contamination, degradation, and isomer ratio consistency. The USP sets a minimum threshold—typically offering a range for L-Alanine content between 98.5% to 101.5%—but we habitually tighten our control limits. A missed mark means a full batch evaluation, regardless of whether it could pass in the market tomorrow. Our quality oversight group pulls stability samples throughout production and storage, running accelerated and long-term shelf testing to ensure changes in color, odor, or solubility do not slip past unnoticed.
Some may question why a minor excipient needs such strict scrutiny. Our factory lines often run side by side—one tank running a clinical trial order, another supporting large-volume nutritional contracts. Traces of heavy metals or microbial growth could trigger a recall sending ripples across supply chains for weeks. With L-Alanine’s delicate crystalline habit, cross-contamination with L-serine, glycine, or trace solvents from cleaning procedures proves especially difficult to fix after the fact. That’s why facilities tailored for single-compound runs offer such an advantage; the risk profile changes when a tank sees only one route and one compound from season to season.
What sets L-Alanine-USP apart from food or industrial grade material often comes down to process fidelity and final validation steps. In non-pharma sectors, specifications sometimes drift; purity requirements ease to accommodate fermentation carry-over, or trace mineral content gets less scrutiny. In a pharmaceutical setting, “good enough” does not keep pace with real world liability. Microbial load, pyrogens, metal ions—each counts for more when the end customer is an infant on a parenteral nutrition drip or a patient on chronic drug therapy.
Amino acid blends for animal feed or bulk supplementation rarely demand such exacting control. Fermentation-derived grades may use cheaper substrates or minimize energy input during purification. We stick to pharmaceutical methods—bleaching stages proofed by repeated test runs, solvent purification matching compendia, removal of any non-protein amino acid byproducts to below traces. These steps often add more labor and expense than non-pharma operators are willing to take, but they underpin the long-term quality partnerships with major multinational pharma groups who audit both our paperwork and our tanks each year.
Inside solid dosage departments, L-Alanine proves its worth most during scale-up. The compound plays well both as a wet granulation binder and as a buffering agent for certain drug actives, thanks to its low hygroscopicity and pH-neutral profile. Easy dispersibility and non-hygroscopic behavior reduce downtime and limit problems from moisture-sensitive actives. Tablet makers know flow problems are solved not just on the pilot plant but at massive production scale, and so every improvement we make upstream directly eases pressure on blending and compression runs.
On the nutritional side, L-Alanine’s chemical tightness shines in products targeted at sensitive populations. Neonatal and surgical nutrition solutions demand high clarity, rapid dissolution, and complete absence of harmful microflora. Our batches enter blending tanks only after passing USP sterility and endotoxin thresholds, verified through in-house and third-party labs. Operators regularly monitor for known and less well-studied impurities, including perspective checks when compendial limits change or new bioburden concerns arise.
Every package that leaves our site carries more than a lot code and a spec printout—it reflects dozens of small steps that matter in practice. From drum washing to real-time climate monitoring during shipment, each layer of procedure guards against unseen risks. Operators recall instances of temperature spikes or condensation events that forced entire lots to be retested, sometimes repackaged. Light exposure during ocean shipping, for example, can cause surface caking or color drift if even a single drum goes unchecked. We train teams to treat each pack as a risk unit, not just a statistic.
Pharma partners want assurance that material received Thursday will process cleanly on Friday. No surprises, no upsets, no last-minute rework. Responding to this, we deploy tamper-evident seals and inert gas purging on containers expected to sit in storage longer than thirty days. These are not afterthoughts; they represent lived lessons from client feedback after delayed shipments or unexpected downtime at the customer’s facility. Our L-Alanine reaches clients with the properties documented at our site, not reshaped by mishaps on the road.
Our facility audits and regulator inspections grow more frequent each year. With our process data now digitized and batch QR codes tied to real process control records, we maintain an open channel for clients to trace exactly how their material was made and tested. Pharmaceutical buyers voice concerns about sourcing traceability, especially after high-profile recalls in unrelated sectors. Our continuous investment in documentation and trace handling addresses this demand before it becomes a crisis.
We stay linked in with consortiums discussing upcoming changes to the United States Pharmacopeia, considering both novel impurity profiles and evolving techniques for detecting trace solvents or biological contaminants. Some requirements seem speculative at first, but early adoption of new protocols often spares months of revalidation down the line. A parallel focus on sustainability also surfaces with every order—reducing solvents, minimizing waste, and switching to green energy sources for major process lines, without compromising reproducibility or timeline commitment.
Issues can surface even in the tightest plants. Unusual precipitation kinetics during particularly humid seasons affect particle morphology and pourability, slowing batching and forcing extra sieving runs in the packing house. Raw material supplies can fluctuate in purity; a single out-of-spec solvent input once forced our team to halt a full tank for a week while re-validation and cleaning played out. Admitting to these real challenges creates opportunities to improve—triaging process alarms, investing in climate control, deepening supplier qualification programs, and revisiting long-held protocols that no longer fit new realities.
Pharmaceutical and nutrition customers increasingly ask for direct access to root cause analyses and interim test results, not just certificates of analysis. This pressure pushes us to work closer with both critical suppliers and customers, opening lines for joint response in the event of any deviation. We build in extra quarantine lots to buffer unexpected delays and run scenario planning sessions to road-test our responses long before incidents make headlines.
Direct comparison with other amino acids, such as L-Valine or Glycine, reveals why L-Alanine stands as a preferred excipient in many formulations. While each amino acid shares basic backbone chemistry, L-Alanine resists caking and moisture pickup more effectively, which makes it the reliable choice in humid climates or open handling systems. Other options sometimes exhibit unpredictable pH shifts or granulation failures; our facility sees fewer nonconformance reports from formulation teams when L-Alanine rounds out the profile. In cost-per-gram, other amino acids may look comparable, but years of downtime reports and loss analyses highlight how much more expensive downtime or rework can run.
We see trends where generic or food-grade options tempt procurement with lower front-end costs, but those savings often erode with every deviation or complaint logged. Supply partners who test by both compendial and in-use criteria—solubility, particle flow under stress, and secondary contamination checks—stand out. L-Alanine-USP’s consistent performance amid a tightening regulatory environment speaks for itself in the ease of product transfer and manufacture across client sites.
The push for ever-stricter pharmacopoeial standards and vigilant regulatory oversight requires ongoing upgrades both in laboratory and on the process floor. Our investment in automated chromatographic stations cut the review window between batch end and shipment by nearly half, getting customers back to business rather than waiting for paperwork. Upstream, the adoption of membrane filtration and energy recovery loops serves dual ends: improving purity on each pass, while dropping both cost and environmental burden per kilo produced.
We keep ahead by running crash review sessions each quarter, dissecting process near-misses or client feedback. No improvement arrives solely from the top; the most effective changes come from half a dozen operator and supervisor heads gathering on the shop floor, where real experience holds sway over abstract checklists. Every step designed for quality must make sense to the team operating late nights and early morning shifts. Automated reminders and digital tracking move accountability closer to line operators, not just the QA department.
Clients hold strong opinions about what works, what fails, and what matters most in the field. Building trust involves more than delivering on time; it means responding quickly when findings appear, and staying engaged through every stage of their review cycle. We share process capability data, not selective best cases, and welcome third-party auditors to inspect both our process and problem log. This openness has earned repeat business from clients who prioritize transparent sourcing and rapid engagement in case concerns arise.
Feedback cycles help us spot evolving needs. Pediatric nutritionists request more granular impurity profiles; tableting engineers seek even narrower particle size distributions. Each demand maps directly to process review and capability tracking on our side. We calibrate our response not just according to commercial scale, but to the real human risk that a single out-of-control batch could represent. Secure supply, stable composition, and process transparency define how we continue to support clients around the globe.
Every kilo of L-Alanine-USP that leaves our facility represents more than chemistry; it’s the sum of detail-oriented production, peer-reviewed process improvements, and lived collaboration with clients and regulators. As expectations rise—driven by both demand for higher performance and zero-defect safety in drug and nutrition science—we stand accountable not only for meeting the latest USP requirements, but for anticipating tomorrow’s priorities before they take full effect. Our team stays grounded in plant experience, and our doors remain open to every question from formulation chemists, QA managers, and procurement professionals seeking reliability in every order.