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D-Malic Acid

    • Product Name D-Malic Acid
    • Alias dl-malic-acid
    • Einecs 221-508-0
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    180625

    Product_Name D-Malic Acid
    CAS_Number 636-61-3
    Molecular_Formula C4H6O5
    Molecular_Weight 134.09 g/mol
    Appearance White crystalline powder
    Solubility_in_Water Soluble
    Melting_Point 101-103°C
    Optical_Activity D-isomer (dextrorotatory)
    pH_Value Approximately 2.2 (0.1M solution)
    Odor Odorless
    Storage_Temperature Store at 2-8°C
    Purity Typically ≥99%
    Synonyms D-Hydroxybutanedioic acid
    Shelf_Life 2 years under recommended storage

    As an accredited D-Malic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing D-Malic Acid is packaged in a 25 kg white fiber drum with an inner polyethylene liner, clearly labeled with product details.
    Shipping D-Malic Acid is shipped in tightly sealed containers, usually plastic drums or fiber barrels with inner liners, to prevent moisture absorption and contamination. Stored and transported at ambient temperature, away from incompatible substances, it's handled as a non-hazardous chemical under normal shipping conditions, complying with standard safety and labeling regulations.
    Storage D-Malic Acid should be stored in a tightly closed container in a cool, dry, and well-ventilated area, away from sources of heat, moisture, and incompatible substances such as bases and oxidizing agents. Protect from direct sunlight and humidity. Ensure proper labeling and keep away from food and drink. Use appropriate personal protective equipment when handling the chemical.
    Application of D-Malic Acid

    Applications of D-Malic Acid in Industrial Manufacturing

    D-Malic Acid functions as a specialty intermediate in multiple industrial sectors, offering unique benefits for formulation, process control, and product specification. The following applications highlight specific downstream uses, regulatory frameworks, and production practices relevant to its industrial deployment.

    1. Food & Beverage Acidulant for Sugar-Free and Functional Beverages

    Food-grade D-Malic Acid is preferred in the formulation of sugar-free and low-calorie beverages, sports drinks, and functional wellness beverages due to its naturally mild sour profile and improved flavor-masking of high-intensity sweeteners. Beverage manufacturers rely on this ingredient to adjust tartness, enhance shelf life, and balance artificial and natural flavor systems while maintaining low-calorie declarations needed for market compliance. Formulation teams benefit from its higher solubility at low temperatures and its stability in aqueous systems. D-Malic is also valued for supporting product stability during high-temperature pasteurization and extended storage, minimizing precipitation and stratification in finished liquid products.

    Industry compliance standards

    • Codex Alimentarius GSFA (General Standard for Food Additives, assigned malic acid E296)
    • FCC (Food Chemicals Codex) specification for L(+)-Malic Acid
    • US FDA 21 CFR §184.1069 as a generally recognized as safe acidulant
    • EU Regulation (EC) No 1333/2008 for use in non-alcoholic flavored drinks, dietary supplements
    • China GB 2760-2014 as a permitted food additive (malic acid, 酸度调节剂)

    Typical usage ratio

    • 0.03%–0.25% by weight, depending on formula acidity target, beverage type, and local taste profile
    • Blending ratio adjusted for pH target 2.5–4.0 in final beverage matrix
    • Lower ranges in sugar-free and functional blends to balance sweetness and acidity

    Downstream process integration

    • Dissolved directly into beverage pre-mix during initial blending
    • Compatible with hot-fill, aseptic, and ultra-high temperature pasteurization
    • Supports dissolution and flavor standardization during in-line hydration and CIP (clean-in-place) processes

    Final product types

    • Electrolyte sports drinks
    • Non-carbonated functional waters
    • Powdered beverage premixes (stick packs, sachets)
    • Energy drinks and sugar-free beverages

    2. Chiral Synthesis Intermediate in Pharmaceutical APIs

    D-Malic Acid serves as a critical chiral building block and resolving agent in the asymmetric synthesis of certain pharmaceutical actives and intermediates, especially for anti-infective agents, beta-lactam antibiotics, and optically pure excipients. Its enantiopurity allows precise control over the stereochemistry of downstream API production. R&D and manufacturing chemists use it in salt formation, purification, and chiral resolution steps. It enables the production of enantiomerically pure drugs, supporting robust impurity profiles and regulatory documentation for DMF and cGMP manufacturing environments.

    Industry compliance standards

    • ICH Q7 Guidelines for API GMP production
    • USP-NF and Ph. Eur. monographs for enantiopure chiral salts and excipients
    • US FDA DMF Type II, III filing for drug substance intermediates
    • EDQM Certificates of Suitability (CEP) procedures for excipients
    • Chinese Pharmacopoeia ChP 2020 Edition for resolving agents

    Typical usage ratio

    • Stoichiometric ratio or slight excess, typically 1:1 or 1.05:1 relative to target enantiomer or API intermediate
    • Dosing based on resolution efficiency and process batch size requirements
    • Scaled from grams in laboratory development up to multi-kilogram lots in plant-scale API synthesis

    Downstream process integration

    • Salt formation: added post-intermediate synthesis for chiral salt creation
    • Used in solvent-based crystallization and subsequent salt recovery
    • Enantiopurity assessment supported by downstream HPLC chiral analysis steps

    Final product types

    • Chiral active pharmaceutical ingredients (e.g., beta-lactam APIs)
    • Enantiopure pharmaceutical intermediates
    • Chiral excipient grades for oral solid dose formulations
    • Pharmaceutical fine chemicals and advanced API intermediates

    3. Specialty Additive in Feedingstuffs and Animal Nutrition

    D-Malic Acid is utilized by animal feed formulators as a palatability enhancer and acidifier, improving the intake patterns and growth performance of young livestock, particularly swine and poultry. As a nutritional acidulant, it modifies feed pH, inhibits undesirable microbial activity, and assists with masking the off-notes of certain amino acids or minerals. High-purity D-Malic is selected for specific animal life stages and is often included in compound feed and premixes. Its functional properties support formulation flexibility for high-density pelleted feeds and liquid supplements while aligning with the trend towards antibiotic-free production systems.

    Industry compliance standards

    • European Feed Additives Register EC No 1831/2003 (malic acid listed as sensory additive, acidity regulator)
    • US FDA 21 CFR §582 Substances Generally Recognized as Safe (GRAS) for animal feed
    • China GB/T 1886.31 standard for feed-grade malic acid
    • FAMI-QS certification scheme for specialty feed ingredients

    Typical usage ratio

    • 0.05%–0.30% by weight in complete feed or compound premix, depending on animal species, age, and target functional response
    • Formulated at higher levels as an acidifying agent in starter diets for piglets or chicks

    Downstream process integration

    • Blended with macro-minerals and vitamins before feed pelleting or granulation
    • Compatible with liquid and dry extruded feed mixes
    • Sprayed as part of post-processing liquid supplementation for pelleted feed

    Final product types

    • Piglet and chick starter feeds
    • Compound premixes for livestock and aquaculture
    • High-value pet food and feed supplements
    • Acidified milk replacers

    4. Intermediate for Biodegradable Polymer Synthesis

    D-Malic Acid acts as a renewable-origin monomeric intermediate in the synthesis of biodegradable polyesters such as poly(malic acid) and its copolymers, primarily for biomedical and controlled release applications. Polymer developers use it for producing resorbable scaffolds, drug carriers, and hydrogel matrices where non-toxicity and bio-degradability must meet strict regulatory requirements. Precise enantiomeric form grants predictable hydrolytic degradation and molecular weight control in the final polymer matrix. This application leverages D-Malic's multi-functionality, supporting catalyst-free synthesis routes and minimizing the reliance on fossil-based feedstocks.

    Industry compliance standards

    • ISO 13485 certification for medical device polymer manufacturing
    • US FDA 21 CFR Part 820, Quality System Regulation for device components
    • USP Class VI / ISO 10993-1 biocompatibility for medical-grade biomaterials
    • REACH and RoHS restrictions for non-biodegradable materials

    Typical usage ratio

    • Used as a primary diacid monomer at 30%–70% by mole in copolymerization reactions with diols or other hydroxy acids
    • Mole fraction adjusted to achieve targeted degradation rate and physical property profile of the polymer

    Downstream process integration

    • Serves as a diacid core in melt-condensation polymerization reactors
    • Integrated into solvent-free synthesis under vacuum and inert gas
    • Allows post-polymerization purification and shaping for film, microsphere, or 3D scaffold products

    Final product types

    • Implantable biodegradable medical devices
    • Controlled drug release carriers and microcapsules
    • Biodegradable packaging films for medical and biotechnology
    • Tissue engineering scaffolds

    5. Analytical Reference Material and Ion Chromatography Reagent

    D-Malic Acid is applied as a chiral reference standard and eluent modifier in analytical laboratories, particularly in ion chromatography for resolution and quantification of organic acids in complex matrices. Laboratories utilize its high stereoisomeric purity for calibration, internal standards, and separation efficiency optimization. It supports the accurate quantitation of optical isomers in QC for food, fermentation, and pharmaceutical production, ensuring method validation and GLP/GMP traceability. Precision chemical suppliers provide Certificates of Analysis confirming identity and purity, with stringent batch-to-batch consistency.

    Industry compliance standards

    • ISO/IEC 17025 accreditation for analytical reference material production
    • ICH Q2(R1) validation guidelines for analytical procedures
    • USP <621> Chromatography standard for system suitability
    • GLP/GMP traceability requirements for reference substance sourcing

    Typical usage ratio

    • Concentration for calibration curve preparation typically 1–1000 ppm depending on analytical method sensitivity
    • Eluent modification: 0.1–5 mM for mobile phase enhancement in ion chromatography

    Downstream process integration

    • Direct addition to calibration standards and sample diluents
    • Mobile phase blending for separation of chiral and achiral organic acids
    • QC laboratories use for daily sequence checks and method reproducibility controls

    Final product types

    • Certified analytical reference standard kits
    • Ion chromatography reagents
    • Food and pharmaceutical laboratory test reports
    • Validated calibration and system suitability solutions
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    Competitive D-Malic Acid prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    D-Malic Acid: Crafting Better Ingredients from the Manufacturer's Floor

    Overlooked, but Powerful: D-Malic Acid in Our Hands

    The story of D-Malic Acid often falls in the background—overshadowed by its more famous cousin, L-Malic Acid. But as a manufacturer driven by decades of hands-on chemical processing, we know every detail of how D-Malic Acid comes to life and why it matters on the production line. In the field of food ingredients and industrial additives, D-Malic Acid offers properties that change outcomes, especially when demands call for a different set of strengths than the common L-form.

    D-Malic Acid, also known as (R)-Malic Acid, boasts a molecular weight of 134.09 g/mol and appears as a white to off-white, crystalline powder. This form distinguishes itself in applications requiring distinct tartness or altered metabolic responses. Most suppliers focus on L-malic acid due to its natural occurrence in fruits, but D-malic acid, produced through stereoselective synthesis at our plant, holds an edge where precision and unique performance are required. Our model for D-Malic Acid production operates at scale, using high-purity starting materials and tightly controlled reaction environments, resulting in a product with a specification purity exceeding 98%.

    How Technical Experience Shapes What We Make

    Building reliable D-Malic Acid isn’t a simple mix-and-stir operation. Over the years, we’ve refined the enantioselective pathways, investing in catalyst recovery systems and advanced filtration, not because it's fashionable, but because every step changes the quality and impact of the finished product. With our experience, we know that unwanted byproducts or even slight impurity shifts can alter taste profiles or interfere with sensitive end uses in pharmaceutical intermediates, fine chemicals, or specialty confectionery.

    Customers in the beverage sector started asking for D-Malic Acid when they realized their product texture improved, and their formulation teams could achieve a different kind of tartness, less sharp and sometimes more persistent, compared to traditional acids. Some specialty supplements and biomedicine developers reach for D-Malic Acid, too, where specific isomer forms matter for bioavailability and purity. We have learned there is little room for shortcuts when formulating for these industries. Milling, particle size separation, and moisture control all come into play, and every lot passes through multiple strict QC checks. These steps sound simple on the surface, but without experience, they can compromise the end product. Our operators know that maintaining an upper limit on water content prevents clumping, especially in high-humidity regions, so the D-malic acid moves cleanly through filling machines and dissolves without hassles on the customer’s end.

    Where D-Malic Acid Earns Its Space

    Among all the dicarboxylic acids in our catalog, D-Malic Acid earns its own lane. Chemically, D-malic acid can substitute malic acid in some blends, but its metabolic effects and taste signatures offer new pathways for customers looking for more nuanced formulations. The beverage developers who came to us were looking to create low-calorie drinks with less lingering aftertaste. D-malic acid, less present in nature than the L-form, offers a smoother, more sustained acidity. This translates into end products where bitterness drops away quicker and fruit notes become more pronounced.

    In technical processing, we’ve also seen its value manifest in hard boiled candies and lozenges. D-malic acid interacts differently with sugar syrups compared to the L-form, sometimes improving solubility and yielding a cleaner finish. Customers using high-fructose systems appreciate how D-malic acid reduces browning reactions, as the isomer isn’t as reactive with reducing sugars. As chemists, we don’t just sell the acid—we test and prove every claim in small batch trials before scaling up. This willingness to probe beyond what’s written in standard references has delivered actionable results to our customers, keeping both their lines and ours running efficiently.

    Real Differences: L-Malic Acid, Racemates, and D-Malic Acid

    It’s easy to misunderstand the differences between D-Malic Acid, L-Malic Acid, and racemic mixtures unless you’ve worked with the pure substances on a daily basis. L-Malic Acid dominates fruit-derived flavors and drives the tartness in green apples. D-Malic Acid, on the other hand, is a mirror image—rarely found in nature but readily made in the plant. While the racemic (DL) form combines both, only pure D-malic acid lets customers tune sweetness and acidity more precisely. Working in production, it’s clear that racemates complicate formulation. For pharmaceutical customers, purity and chirality can change an entire molecule’s behavior in the body. D-malic acid, when produced under enantioselective conditions and verified by chiral chromatography, answers that need.

    Our team holds direct experience in running both DL and D processes. We’ve seen how using the wrong isomer in pharmaceutical intermediates easily triggers failed batch tests, resulting in months of lost time. By controlling synthesis conditions and limiting racemization, we give customers a true D-form that stays stable, free of cross-reactivity, and consistent in downstream processing. This protects jobs and meets tough regulatory standards, like those set for pharmaceutical actives and food acidulants in strict export markets.

    From Chemistry Bench to Plant Scale—Different Needs, Same Rigor

    Scaling D-Malic Acid production takes more than laboratory finesse. On the ground, managing batch size, reaction temperature, and post-processing determines whether we meet both small-batch specialty orders and high-volume food-grade contracts. Our crew monitors and logs reaction conditions around the clock. This allows us to ship D-Malic Acid tailored for application in beverages, specialized confectionery, or scientific research, without sacrificing purity in any batch. In practical terms, that means getting a powder that pours cleanly, dissolves completely, and remains free from harmful contaminants every time it leaves our plant.

    Our partners often bring technical problems—say, why is the acidity in their current product less stable during storage, or what’s causing unwanted interaction in a pharmaceutical application. We respond by adjusting synthesis and purification parameters, producing smaller or larger granules, or providing extra drying steps to reduce caking. Direct feedback from labs and line operators guides these adjustments. This keeps our process cyclical and responsive instead of static. For example, beverage makers want fast-dissolving crystals, while candy producers care more about consistent taste release over time. We meet both requests with thoughtful production tweaks, because our technicians and engineers see the end use and don’t just ship generic product out the door.

    Debunking the Myth: Commoditization Ruins Distinction

    Some buyers think of malic acid as a pure commodity—buy anywhere, expect the same. In practice, we learned differently. Poor handling during transport, under-investment in production equipment, or cuts on purification costs lead to off-flavors, excessive dust, or excessive moisture. One global customer came to us after receiving three failed deliveries of D-malic acid from intermediaries who neither controlled synthesis nor finished processing. The off-flavors forced a recall, hurting both the brand and the supply chain. Our company responded by working closely with the customer and tweaking equipment settings until we achieved ultra-low humidity product that performed well from shipment to final blending in their system. Experiences like this prove one-size-fits-all thinking only brings trouble. As manufacturers, we build our system for adaptability, not just volume, giving buyers the choice between standard lots and ultra-high-purity batches.

    Strict batch tracking and process improvements don’t just protect the customer; they lift up the entire supply chain. Our QC team flags every deviation and traces problem batches back to the processing shift, not just to warehouse storage. This way, lessons learned become process changes, not just apologies for non-conformance. Building up a qualified team that understands the non-negotiable elements of D-malic acid production—clean rooms, controlled feeds, traceable batches—became a major competitive difference for us. We learned to teach every new technician what failed batches smell and look like, and how good D-malic acid should pour and taste before final packaging.

    Sustainability, Waste Reduction, and the Future

    While technical performance always comes first, the reality of chemical manufacturing means waste and environmental impact can’t be overlooked. We employ continuous-improvement systems within our D-Malic Acid operations. Every step, from precursor selection to finished lot packaging, comes under scrutiny for solvent use, water consumption, and energy efficiency.

    A few years back, a routine audit showed our catalyst recovery system lagged and waste was running higher than necessary. The plant team came up with a new filtration loop, which paid off in both yield and sustainability. Sharper yield turns mean less waste in the stream, smaller energy bills, and a smoother process for our workers—no more emergency back-flushing when lines clog. Customer demands for cleaner, more responsible chemicals push us to innovate further. We now offer D-Malic Acid with low residual solvent content, and we track every input and output, which makes documentation for regulators much simpler and less costly.

    We keep pushing toward greener chemistry. D-Malic Acid synthesis generates less CO2 than some other organic acid processes, especially when solvents and heating are tightly controlled. Our research teams keep experimenting with enzyme-driven methods, adapting lessons from biotech, and always watching how these protocols affect real-world performance. If a method cuts energy but introduces byproducts that lower taste quality, we set it aside. Being a manufacturer keeps these choices grounded in reality.

    The Human Element in D-Malic Acid Production

    People rarely get to see the full impact of the work we do in malic acid manufacturing. Lab techs struggle to resolve contamination in a chromatographic run; warehouse staff watch for humidity spikes; line workers keep dryers calibrated by the hour. Years of knowledge feed every decision. That experience stops waste, strengthens relationships with long-time buyers, and prevents costly shutdowns. For engineers and operators who’ve turned the same bolts for years, the right way to make D-Malic Acid is more than hitting a standard test—it’s knowing the subtle clues in color shift or faint scent that warn of deviation. Listening to these front-line observations keeps the product consistent at scale, beyond what machines can guarantee.

    The market for D-malic acid sometimes shifts fast—one month, the demand leans toward pharma, the next, a regional food regulation paves the way for new uses in snacks or supplements. We pivot our process in response, adding batch flexibility and scaling line cleaning procedures to match sensitive end-uses. Some customers even ship us samples for compatibility trials. This kind of open-door policy lets both sides solve new formulation problems together, saving time and cost across the board. Experience has taught us that true supply reliability takes these open lines of communication, not just a standardized contract.

    Innovation Brings New Applications

    Every round of D-Malic Acid production and distribution teaches us something new. Our R&D team is regularly approached by specialty food makers looking for new acid profiles that don’t chase the puckering effects of citric or tartaric acid. D-Malic Acid brings balance, combining a smooth acidity with a stable shelf-profile. Pharmaceutical partners come for the chirality and customized particle sizes, which we achieve through new crystallization methods. Many clients request tailored grades, as their products differ in required particle fineness or reactivity. We respond by adjusting drying cycles, blending ratios, and post-processing screens, ensuring buyers get exactly what their line needs, not a generic mass-market grade.

    Recently, sports nutrition products and health supplements have seen growth in D-malic acid demand. The compound fits formulas that call for metabolic support and low natural sugar levels. D-malic acid’s isomeric singularity means it won’t double-sweeten the taste or interfere with regulatory ingredient lists. Some customers asked for unique acidulants to differentiate electrolyte drinks and protein snacks. Our technical teams worked alongside formulators, matching desired pH changes while keeping finishes clean and labels compliant. This hands-on technical service comes directly from having both veteran process engineers and up-to-date lab resources under one roof.

    Why Experience Matters in Sourcing D-Malic Acid

    Any serious food or pharmaceutical producer knows that what’s on paper doesn’t always match what’s in the drum. By the time D-malic acid reaches a customer’s dock, it’s moved through dozens of hands and storage bins unless the producer holds the end-to-end process themselves. With experience, we’ve learned that controlling upstream and downstream logistics—right down to packaging material selection—prevents contamination, preserves flow properties, and ensures reliable shelf life. A seasoned manufacturer never retires old documentation systems; keeping traceability not only supports batch recall, it supports trend analysis and feedstock improvement, keeping constant incremental value flowing to the customer.

    Our direct stake in D-malic acid quality gives buyers a clear assurance: every batch stems from the same protocols, pilot-tested before full runs, and sampled through to the last bag. We train operators on every shift to recognize off-notes and color deviations and to flag even minor differences for deeper analysis. These vigilant, skilled workers amplify our commitment to exacting, application-driven D-malic acid for a changing marketplace.

    Challenges and Solutions Moving Forward

    D-Malic Acid earns its keep as specialty ingredient precisely because it challenges producers to meet increasingly strict requirements. Market returns push for the lowest prices, but shortcuts invite clumping, off-flavors, or regulatory setbacks. Our solution lies in relentless monitoring and full transparency, supported by continuous learning. We hold plant tours for customers, reveal the technical backbone behind finished D-malic acid, and encourage feedback that leads to incremental but meaningful improvements.

    One ongoing challenge involves regulatory changes—countries reclassify food acidulants or change reporting thresholds overnight. Our compliance staff tracks these changes, revising test protocols and batch documentation so customers avoid border delays or surprise sample failures. Experience running multiple lab and pilot processes means we pivot easily between markets, offering necessary documentation and support whether the order is ten kilograms or ten metric tons.

    Another area requiring vigilance: maintaining crystal size distribution and purity as we expand batch sizes. Scaling up often introduces particle aggregation or impurity changes. Our plant team focused on modular, staged cooling and mixing, allowing finer control and reducing variation lot to lot. When customers need high-dispersion for beverage powders or slow-dissolving features for hard candies, we tailor final crystallization and post-treatment steps, instead of relying on a single-pass approach.

    Partnering for Better Ingredients

    D-Malic Acid’s journey from feedstock to the user’s product is anything but simple. Every improvement ties back to technicians, engineers, and chemists committed to hands-on quality, precise handling, and open dialogue. Our process reflects years of cumulative insight, not just the latest industry buzz. What we deliver lands in global supply chains, but what matters most starts in the plant—from diligent process monitoring to direct customer partnership. Buying from a manufacturer who understands both the chemistry and the needs of downstream users creates stronger, more reliable products for everyone in the chain.