|
HS Code |
406963 |
| Chemical Name | L-Aspartic Acid |
| Molecular Formula | C4H7NO4 |
| Molar Mass | 133.10 g/mol |
| Appearance | White crystalline powder |
| Solubility In Water | 4.53 g/100 mL (25°C) |
| Melting Point | 270°C (decomposes) |
| Pka1 | 1.88 |
| Pka2 | 9.60 |
| Isoelectric Point | 2.77 |
| Cas Number | 56-84-8 |
| Purity | Typically ≥99% |
| Storage Temperature | 2-8°C |
| Synonyms | Aspartic acid, L-Asp |
| Odor | Odorless |
| Taste | Slightly acidic |
As an accredited L-Aspartic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | L-Aspartic Acid is securely packaged in a 500g white HDPE bottle with a blue screw cap and clear labeling for identification. |
| Container Loading (20′ FCL) | For L-Aspartic Acid, a 20′ FCL (Full Container Load) typically contains 16–18 metric tons packed in 25 kg bags on pallets. |
| Shipping | L-Aspartic Acid is shipped in tightly sealed, moisture-resistant containers to prevent contamination and degradation. It should be stored in a cool, dry place, away from incompatible substances. During transport, proper labeling and documentation are required to comply with local and international regulations, ensuring safe handling and delivery. |
| Storage | L-Aspartic Acid should be stored in a tightly sealed container at room temperature, ideally between 15°C and 25°C (59°F and 77°F), in a cool, dry, well-ventilated area away from moisture, heat, and direct sunlight. It should be kept away from incompatible substances, such as strong oxidizing agents. Proper labeling and secure storage help prevent contamination and ensure safety. |
| Shelf Life | L-Aspartic Acid typically has a shelf life of 3 to 5 years when stored in a cool, dry, tightly sealed container. |
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Purity 99%: L-Aspartic Acid with 99% purity is used in pharmaceutical synthesis, where it ensures high active ingredient yield and product safety. Molecular Weight 133.10 g/mol: L-Aspartic Acid with molecular weight 133.10 g/mol is used in peptide manufacturing, where it provides precise chain-length control. Particle Size <80 mesh: L-Aspartic Acid with particle size less than 80 mesh is used in food fortification, where it enables uniform blending and improved solubility. Melting Point 270°C: L-Aspartic Acid with a melting point of 270°C is used in high-temperature industrial processes, where it maintains structural stability during thermal application. Stability Temperature up to 180°C: L-Aspartic Acid stable up to 180°C is used in biodegradable polymer production, where it guarantees consistent material properties under processing conditions. Amino Acid Assay ≥98%: L-Aspartic Acid with amino acid assay ≥98% is used in cell culture media, where it promotes optimal cell growth and protein expression. Water Content ≤0.5%: L-Aspartic Acid with water content ≤0.5% is used in lyophilized nutritional supplements, where it minimizes product degradation and extends shelf life. Specific Optical Rotation -27.0° to -30.0°: L-Aspartic Acid with specific optical rotation from -27.0° to -30.0° is used in enantioselective catalyst development, where it achieves high chiral purity in final products. |
Competitive L-Aspartic Acid prices that fit your budget—flexible terms and customized quotes for every order.
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In chemical manufacturing, L-Aspartic Acid brings together decades of production experience, strict attention to process details, and a deep understanding of how structure and purity matter to downstream users. On this page, we want to do more than publish product information—we want to share the realities behind the manufacturing process and highlight what makes our L-Aspartic Acid an asset to industries depending on reliable, consistent, high-purity amino acids.
An amino acid like L-Aspartic Acid may look straightforward on a spec sheet. Structurally, it offers the familiar two carboxyl groups and an amine group, categorizing it as a non-essential amino acid with the formula C4H7NO4. But chemistry at the manufacturing level never comes down to one line on a page. From fermentation process selection to purification method, each phase shapes the outcome: purity, batch consistency, and minimal by-products. Our L-Aspartic Acid leaves our facility in white, odorless crystalline form, with purity levels consistently exceeding 99%, and average moisture content below 0.5%, which not only meets but surpasses many food, pharmaceutical, and laboratory requirements.
Producing L-Aspartic Acid at scale involves careful control of variables. Fermentation batches must guard against contamination. Downstream extraction and crystallization procedures demand well-maintained equipment and rigorous process validation. Every step requires people who possess solid technical know-how and experience with real-world production, not just theoretical chemistry. Our plant operators know the practical aspects that keep impurities out and maintain lot-to-lot uniformity—something customers notice whether they’re formulating oral tablets, blending supplements, or running protein synthesis experiments.
L-Aspartic Acid finds a wide range of uses—each with unique expectations for chemical quality and usability. Food supplement manufacturers rely on its ability to support protein metabolism and as a building block for flavor enhancers like aspartame. Pharmaceutical companies look for purity levels that go well beyond what typical commodity suppliers provide. In sports nutrition, L-Aspartic Acid frequently supports energy cycles and amino acid blends. Beyond these core uses, L-Aspartic Acid acts as an intermediate for industrial synthesis, crop improvement products, and cosmetics.
Our role as the manufacturer means we have to think in batches, not just kilograms. Every lot must satisfy increasingly strict regulatory and customer audits. Analytical equipment—HPLC, titration stations, microbiological workbenches—runs daily validations. Documentary trails back up every test result. Our team spends as much time reviewing fermentation controls and GMP documentation as we do overseeing the drying or packaging line. These steps ensure that the L-Aspartic Acid we ship does its job in people’s processes, time after time.
Unlike traders or brokers, we can provide insight into the variations our customers frequently encounter with L-Aspartic Acid. Depending on customer requirements, L-Aspartic Acid may come in several specific particle ranges—from standard mesh crystalline for compounding to fine powders for rapid dissolution and low-dust blends. Our main commercial grades focus on the ≥99.0% purity range catering to pharma and food ingredient standards. Some customers working in bioprocessing request ultra-pure, endotoxin-controlled lots, and we’re able to offer material tailored on a production batch basis.
The main technical specifications include precise measurement of pH (2.5–3.5 for a 2% aqueous solution), ensured by careful control in our post-synthesis washing procedures. Ash content averages under 0.2%. We monitor lead and heavy metal content to stay well below global standards (typically under 0.001%). By keeping full control over the source cultures, the fermentation environment, and the downstream processing, our L-Aspartic Acid can reliably meet international quality norms like USP, EP, and FCC.
Many customers ask if there’s an advantage in choosing L-Aspartic Acid over similar structural amino acids, such as D-Aspartic Acid or L-Glutamic Acid. The manufacturing and functional differences matter in both process and application. Only the L-isomer of Aspartic Acid carries biological activity in mammalian systems, relevant for formulations in food and pharmaceuticals. The D-form, or racemates, typically represents fermentation by-products or chemical synthesis leftovers; these can complicate biological performance and may run afoul of regulatory standards for many industries.
We’ve invested in the capacity to selectively produce the L-isomer using patented microbial strains and targeted separation techniques. This is not simply for paperwork; it affects every downstream process from protein construction to regulatory acceptability. L-Aspartic Acid also provides a lower pKa value than its structural twin, L-Glutamic Acid, making it a preferred choice in certain reactions requiring faster buffering action. The choice influences everything from taste-masking in oral formulations to the shelf-life of sports supplements.
Handling L-Aspartic Acid rarely presents hazards beyond basic chemical safety rules. In our own facility, the workflow draws on years of experience keeping dust and cross-contamination low. Drum and bagging lines use double seals, de-dusting chambers, and in-line air monitoring. For the end user, this means the material ships with robust protection against moisture pick-up and oxidation. The product dissolves rapidly in water, has a slightly acidic taste, and does not introduce major risks in typical manufacturing spaces, so long as standard PPE and ventilation protocols are followed. Our team tracks and reports every incident, feeding improvements back into our processing scheme.
One practical challenge our customers sometimes face involves blending L-Aspartic Acid with hydrophobic components, like certain excipients or carrier oils. The amino acid’s hydrophilic nature supports incorporation into aqueous blends, but it can resist homogeneous mixing with fatty substances. Over the years, customers have asked for technical support on achieving optimal dispersion, and our technical staff is always available to share tips learned from our own batch work and prototyping runs.
As a manufacturer, we shoulder the responsibility for integrity not just in marketing, but in recurring product excellence. The fermentation process, though robust, always bears susceptibility to contamination or batch drift as production runs scale up. Ingredients, like glucose and yeast extract, must themselves meet high-quality benchmarks, to avoid introducing unwanted by-products. Even utilities, such as water purity and steam quality, receive rigorous attention. We run regular resin regeneration and filter replacement, mindful that even a small lapse can compromise the end product. These are details invisible to the final consumer but critical for customers who rely on our stability.
Tracing and tracking every batch makes a difference. Our lot code system sits alongside real-world tracking of operator logs, sensor records, calibration checks, and process sampling. When a deviation occurs, whether in a routine pH result or the physical form at the dryer output, years of hands-on experience guide corrective response. Sometimes it’s a feedstock issue; other times, a cleaning cycle missed its interval. By keeping all process records transparent and readily auditable, we participate in the global quality dialogue without shortcuts.
Manufacturing high-purity L-Aspartic Acid, like most bioprocesses, requires a balance of yield, waste minimization, and responsible chemical stewardship. Effluent treatment remains a top priority; waste streams from fermentation and downstream purification go through multi-stage biological and chemical treatments before release or disposal. Our facility invests in on-site water treatment units and regularly reviews chemical inputs for greener alternatives. We work with trusted suppliers and engage in audits to prevent supply chain risks upstream.
Energy efficiency also plays a large role. The shift towards more energy-conscious crystallizers and energy-recapture systems has already cut our utility footprint over recent years. Customers benefit when the products they choose come from facilities that visibly track, report, and reduce energy and water consumption. Certificates and data alone do not assure best practices—experienced operators who take ownership of these improvements make all the difference.
The backbone of chemical manufacturing rests on not just routine, but on a willingness to improve and adapt. Over the course of producing L-Aspartic Acid for many years, our technical staff and process engineers have encountered—and solved—hundreds of real production challenges. Clogging filtration units, scaling in heat exchangers, variation in fermentation yields due to seasonal input quality, unusual customer demands for flow properties or solubility—these are lessons we incorporate back into process design and staff training.
Regular dialogue with formulation chemists, pharmaceutical buyers, and process engineers at customer sites forms a big part of why our L-Aspartic Acid stays relevant and competitive. Clients approach us with application questions—how the amino acid performs under heat, what residual solvent levels show up in special purification runs, whether bulk material will pass particular country regulations. We share analytical data and practical advice based on actual production lots, not theoretical grades that exist only on a data sheet.
For technical queries, our on-site R&D laboratory provides rapid custom analysis. Whether a customer requires a unique mesh size, extra-tight microbiological controls for biopharmaceutical use, or additional certificates to satisfy a new regulatory market, we have experience navigating these requests on both the production and documentation sides. Meeting these evolving needs makes direct manufacturer cooperation far more valuable than third-party resellers can offer.
Every shipment of L-Aspartic Acid from our facility draws on direct, real-world experience in chemistry, process, and quality. Our product reaches food, pharma, and supplement companies who track every parameter as closely as we do. Unlike resellers or brokers, we don’t just repeat what others report; we test, document, and own every kilogram we produce. The continual emphasis on traceability, technical support, and regular process improvement means customers gain more than a product—they gain an experienced partner in their supply chain.
This commitment has shaped the trust that industry leaders place in our L-Aspartic Acid. Over the years, new quality and regulatory demands continue to raise the bar, and we meet them not by lowering standards but by investing in people, processes, and equipment that stand up to scrutiny. If your team relies on true consistency, professional technical support, and full transparency from origin, there’s real value in working with a manufacturer who shares your priorities.
Some of the most practical knowledge about L-Aspartic Acid comes from the real issues our customers have experienced on their own production lines. One client, formulating extended-release pharmaceutical tablets, once faced unexpected sticking and clumping after switching suppliers. They brought us in to investigate. On reviewing their batch and running in-house comparative tests, we found subtle particle size differences caused those downstream performance problems. Adjusting our drying and milling profile solved the issue.
In another example, a beverage manufacturer requested help reducing aftertaste in a fortified drink. Their product combined L-Aspartic Acid with mineral salts and a vitamin blend. Working together, we adjusted the grade, shifting to a finer mesh and an ultra-washed version, achieving flavor balance without sacrificing nutritional content.
We learn and adapt from this practical feedback, building product improvements directly into future runs—sometimes small shifts in drying curve or enhanced inline sieving. This collaboration between manufacturer and end user moves us beyond transactional supply, deepening both our technical expertise and customers’ confidence.
Success in chemical manufacturing does not rest on price lists, nor on generic certificates. It lives in the production floor challenges, the unyielding focus on purity and consistency, and the shared responsibility between producer and customer. L-Aspartic Acid may begin as a well-known molecule, but the quality and value delivered depend on who stands behind each lot. From our plant, every batch carries years of manufacturing know-how, technical rigor, and a practical drive to improve. That’s what reliable L-Aspartic Acid means, and that is our commitment as a manufacturer—today, tomorrow, and for every application ahead.