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HS Code |
471838 |
| Product Name | L-Pyroglutaminol |
| Cas Number | 535-37-3 |
| Molecular Formula | C5H10N2O2 |
| Molar Mass | 130.15 g/mol |
| Appearance | White to off-white solid |
| Melting Point | 110-115 °C |
| Solubility In Water | Soluble |
| Synonyms | L-2-Pyrrolidone-5-ylmethanol |
| Purity | Typically ≥98% |
| Storage Conditions | Store at 2-8°C |
| Chemical Class | Amino alcohol |
| Ph Value | Neutral to slightly basic (in solution) |
| Optical Activity | [α]D20 +18° (c=1, H2O) |
| Stability | Stable under recommended storage conditions |
| Usage | For research and laboratory use only |
As an accredited L-Pyroglutaminol factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | L-Pyroglutaminol is supplied in a 25g amber glass bottle, sealed with a tamper-evident cap and labeled with safety information. |
| Shipping | L-Pyroglutaminol is shipped in tightly sealed containers, protected from moisture and direct sunlight. The chemical is packed according to applicable safety standards, including labeling for proper identification. Depending on quantity and regulations, packages may use additional cushioning and hazard labeling to ensure safe, compliant transport during shipping and handling. |
| Storage | L-Pyroglutaminol should be stored in a tightly sealed container, protected from light and moisture. Keep it in a cool, dry place, ideally at 2–8°C (refrigerated conditions), and away from incompatible substances. Ensure good ventilation in the storage area and follow all standard laboratory safety protocols. Proper labeling and restricted access to authorized personnel are recommended for optimal safety. |
Applications of L-Pyroglutaminol in Industrial ManufacturingAs a manufacturer of L-Pyroglutaminol, we supply consistently pure material for formulation and processing across advanced industrial sectors. The following sections describe real downstream uses, with scenario-specific standards, integration details, usage ratios, and finished product outputs as tracked in active supply channels. 1. Pharmaceutical Active Ingredient SynthesisLeading pharmaceutical companies use L-Pyroglutaminol as a chiral building block and intermediate in synthesizing peptide-based APIs and CNS-acting compounds. Formulators select this material for its reactivity in cyclization steps, ensuring precise stereochemistry in advanced pharma manufacturing protocols. Custom processes adapt batch volumes to project scale while maintaining traceability and regulatory compliance at every stage. Industry compliance standards
Typical usage ratio
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Final product types
2. Food Grade Amino Acid Additive ProductionMajor food additive manufacturers utilize this material as a precursor for L-pyroglutamic acid and related taste-modulating agents. Its stable, non-hygroscopic properties support batch consistency in flavor enhancement systems for low-sodium and specialty nutrition foods. Facilities implement intensive raw material documentation, batch tracking, and allergen control protocols to meet international food safety regulations. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
3. Cosmetic Peptide/Formulation IntermediatePersonal care manufacturers source L-Pyroglutaminol for advanced anti-ageing and moisture retention formulae in skin care and hair care segments. The material supports the synthesis of pyrrolidone carboxylic acid derivatives and oligopeptides, enabling high-performance hydrating complexes. Production staff manage ingredient validation, allergen screening, and global labeling standards for batch-to-batch reliability. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
4. Biotechnological Cell Culture Media SupplementationBiotech facilities rely on this raw material during the preparation of advanced cell culture media, especially for mammalian or microbial fermentation platforms requiring precise osmolarity adjustment and metabolic stability. Material lot certification and documentation support cGMP compliance, minimizing endotoxin risk and supporting downstream protein expression or vaccine bioproduction projects. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
5. Specialty Polymer and Resin ModificationChemical processing plants employ L-Pyroglutaminol in synthesizing specialty polyamides and as a reactive modifier for waterborne resin systems. The material facilitates amide bond introduction and improves final polymer chain uniformity. Engineering teams apply in-process monitoring for molecular incorporation, validating end-point properties before downstream compounding and extrusion into final plastic forms. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
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In over two decades of producing specialty amino acid derivatives, we've seen L-Pyroglutaminol rise from a little-known intermediate to a valuable niche ingredient across chemical, pharmaceutical, and biotechnological landscapes. Our process begins with well-sourced L-glutamic acid, drawing on batch records refined through hundreds of cycles. The synthesis of L-Pyroglutaminol requires precision: we control pH, temperature, and reaction time with not just state-of-the-art equipment but also time-earned skill.
In our facility, cleanroom standards keep the final product within narrow specifications by controlling moisture, particulate, and cross-contamination risks. Analytical chemists carry out multiple rounds of HPLC testing—each lot is checked for both chiral purity and byproduct content before moving past the QA finish line. Customers in nutraceuticals and life sciences have strict tolerances, so we prepare L-Pyroglutaminol as a white crystalline solid that easily dissolves in water. Specifications for particle size depend on downstream processing; some clients request micronized powders, while others need free-flowing non-dusting granules for bulk production lines.
Many buyers ask about the difference between L-Pyroglutaminol and structurally similar amino acid derivatives like pyroglutamic acid or N-acetyl derivatives. As producers, we've watched confusion slow down R&D projects. Our version is the L-enantiomer—this delivers higher compatibility in biological systems than the racemic or D-forms distributed by commodity traders. For customers pursuing cosmeceutical innovation, we recommend L-Pyroglutaminol for formulas targeting hydration and amino acid replenishment, where rapid solubility and biocompatibility really matter. Peptide manufacturers also favor our grade for coupling steps where impurity carry-over can cause cascade failures in synthesis and ruin entire costly batches.
Specifications like optical purity, moisture content below 0.2%, and residual solvent limits below internationally recognized thresholds are more than numbers on a certificate for us; they're the backbone of process repeatability. In every kilogram we release, we commit to homogeneity, batch traceability, and stability. Some peer products on the market will claim functional similarity but contain racemates or higher levels of secondary amines, leading to unpredictable reactivity. Our process avoids these pitfalls by tightening the window of process controls, using only L-glutamic acid starting materials proven by third-party chiral analysis. Strict adherence to these principles isn't a marketing slogan but a necessity—customers have faced frustrated syntheses and rejected lots when rival sources cut corners on enantiomeric excess.
In recent years, requests for large-scale L-Pyroglutaminol batches increased because manufacturers in both the peptide and personal care markets shifted APIs and active ingredients from animal-derived raw materials to fully synthetic or microbe-origin fermentation processes. Working directly with global health and beauty brands, our technical teams learned that process consistency at our end can make or break launches. Formulators appreciate the clean taste and neutral odor of our L-Pyroglutaminol, which fit smoothly into both water-based and complex emulsions without shifting color or clarity. Self-affirmed stability data spanning three years in inert packaging lets product developers build new lines with actual, not shelf-theoretical, confidence.
A pharmaceutical customer recently shared that earlier sources of L-Pyroglutaminol contained off-spec residue from unchecked side reactions. Their QA flagged frequent deviations, causing wasted pilot lots. In response, we worked together to audit our approach and tune key stages, such as selective crystallization and vacuum drying, to minimize risk. Technical support extended to site visits and daily project calls, not just shipping a drum and calling it good. This collaboration cut error rates, saving the client over $200,000 across a single development cycle. End users rarely see these details, but it's this interaction—translating pure chemistry into workflow—where technical manufacturers add real value.
Chemical modification of amino acids produces a range of closely related compounds. In our experience, companies sometimes substitute pyroglutamic acid for L-Pyroglutaminol or use racemates, especially when raw materials spike in cost or become hard to source. Unfortunately, this shortcut brings problems. Racemic mixtures don’t offer the uniform reactivity required by high-fidelity synthetic biologists or peptide engineers. From the factory floor, purity means less waste and fewer failed reactions. By contrast, mixes with D-forms show up later as lower assay activity or unexplained instability in the finished product.
Another real-world difference concerns downstream quality. Low-grade L-Pyroglutaminol often brings along process residues: excess chloride, ammonium salts, or discolored material, which complicate filtration and may introduce batch-to-batch variation, especially in continuous processes. Our controls and midstream purification steps chase down these issues. By avoiding cost-driven shortcuts, like skipping re-crystallization or using lower-grade water during workup, we deliver consistent product that fits seamlessly into GMP operations and supports reliable scale-up.
We’ve tracked conductivity and heavy metal content in our batches for years. Many refined applications, from intravenous products to high-purity cosmeceuticals, need total heavy metals at microgram-per-gram levels. Across the competition, we see wide shortcuts—either lax cleaning cycles or insufficient final rinsing—and the result is residual metallics that fail regulatory review. We send every batch for independent ICP-MS testing before release and share those records openly with partners. Knowledge gained here led to process tweaks—upgraded stainless hardware, ion-exchange resin upgrades, and tighter maintenance cycles. In the end, this protects both our own brand and the safety of products that reach the medical and OTC space.
Day by day, our technical teams engage with clients developing peptides, nutritional supplements, and personal care offerings. Each vertical brings its own demands. Nutritional supplement formulators look for high-purity ingredients without the trace solvents or inorganic salts that might cause off-flavors or affect solubility. Our product, thanks to its precise synthetic lineage, dissolves rapidly in both neutral and mildly acidic media. Peptide synthesis clients push for low moisture and near-zero residual solvent—particularly DMF, DCM, and toluene—because these can interfere with critical protection and deprotection steps. Lots failing our sub-ppm solvent analysis don’t leave the plant.
In cosmetics, the difference between a stable, easy-to-blend amino acid derivative and one that clumps, discolors, or emits odor boils down to handling at both the input and QA ends. We support this area with real-time stability testing in a variety of storage conditions: ambient, refrigerated, and under accelerated temperature cycling. Over the last five years, we adapted our packaging—multi-layer foil, nitrogen flushing, and smaller single-use sachets—based on data showing most spoilage arises from repeated drum opening or poor resealing at the point-of-use. Because most cosmetic and life-science companies don't have on-site validation labs, reliable packaging and documentation have become silent partners in their product launches.
The technical data is only part of the story. Our team listens. We recall a startup facing scale-up headaches from lots failing colorimetric assays due to trace iron and manganese. In reviewing our own filtration and work-up regimen, we isolated points of material exposure and swapped to specialty resin and dedicated piping, shaving contaminant ppm down to single digits. Every install or workflow change is logged, not just for compliance but to build institutional memory. Collaborating directly with end users, we develop tweaks and improvements no trader or intermediary can match.
Setting product specifications for L-Pyroglutaminol comes from working closely with chemists and engineers focused on both yield and safety. Nothing in a spec sheet survives long in real production if it ignores on-the-ground process snags. We regularly adjust moisture targets, granularity, and suitable packaging sizes—20kg fiber drums for big pharma clients, 1kg aliquots for startup research units—based on detailed feedback. Peptide projects, for instance, benefit from sub-0.1% water content and extra sieving to remove micro-aggregates, since these can act as nucleation points for clumping or slow dissolution in reactor feeds.
Analytical support extends beyond standard COA documentation. If a customer requests it, we run extra NMR and elemental analysis, including tests unlikely to show deviation, to validate a batch for sensitive work. This happened in a recent case involving an immunotherapy pipeline client. Facing aggressive regulatory audits, they requested a full battery of impurity profiling, down to residual solvents from cleaning steps as well as end-to-end chiral purity mapping to detect even trace racemization. We re-ran the process under fresh conditions, delivered documentation, and supported them through the signoff process. Partnership and open communication make these requests achievable on both short notice and routine production runs.
Continuous investment into analytical technology means our team stores years of batch-level data, cross-referenced with process logs and incident reports. This database flags patterns—upticks in failed moisture readings, drift in melting points, or contamination spikes—that help us incrementally tune the line. By catching problems before they multiply downstream, we support not just our interests but those of customers tying large development spends and tight timelines to the quality of our output.
Scientific innovation doesn’t happen in a vacuum. Our L-Pyroglutaminol runs through pilot projects touching food supplementation, advanced wound care, neuroprotective research, and peptide coupling for targeted medicine delivery. One recent example: a global research alliance piloted our material for brain-targeted delivery vehicles using L-Pyroglutaminol as a backbone for novel prodrugs. Their feedback re-shaped our process by highlighting interaction with excipient APIs often ignored by “standard” amino acid vendors focused only on cost and volume.
In another instance, a customer struggled with batch-to-batch inconsistency when their downstream hydrating face mask turned cloudy or grainy after storage. Running joint bench studies, we pinpointed the culprit as a subtle excess of cyclic byproducts in supplied L-Pyroglutaminol. Our fix involved tweaking pH and dwell time during the ring-closure step—actions that sacrificed some short-term yield but raised long-term confidence in the final product’s storage properties. Beyond technical merit, clients benefit most when raw materials are tuned to accompany their innovations, not limit them.
We have also seen rising interest in natural and biobased process alternatives. For clients desiring "green chemistry" angles, we offer pilot quantities from a fermentation-derived process, with traceable upstream biomass and fully auditable environmental footprints. While chemical synthesis currently offers tighter purity and control, we’re investing in fermentation to make the process more scalable and sustainable as these concerns take a central role in global health and luxury goods markets. The same team managing our synthetic lines cross-trains to review proof-of-concept fermentation runs, ensuring seamless transition and reliable feedback as this segment grows.
Markets shift. Regulatory scrutiny tightens. Laboratories face growing documentation and quality hurdles. As a manufacturer, our reputation rests on reproducible results, lot after lot. We keep raw material traceability at the center of our operation, maintaining supplier certificates back to the source, with random checks at every intake. Outbound, we hand customers full documentation suites: batch records, analytical run logs, trace heavy metal scans, and purity profiles—all compiled and offered up front. The attention we bring isn't about ticking boxes but about instilling confidence with every shipment leaving our floor. Years of incident-free audits from both regulatory agencies and the toughest multinational buyers serve as living proof.
Logistics add another axis. Packed in inert atmosphere, shipped under temperature-monitored conditions, we make shipment as important as synthesis itself. Handling complaints—a rare lost drum, a rare tears in outer lining, questions over observed off-color material—means prompt replacement, transparent incident review, and root-cause correction logged into continuous improvement programs. Customers expect more than a product; they need a responsive partner invested in their outcomes.
Global interest in specialty amino acid derivatives like L-Pyroglutaminol grows with every year. As applications diversify, stable, reliable sourcing becomes a strategic edge—not just for large CMOs but for research labs and entrepreneurs. The pandemic taught all manufacturers deep lessons in risk planning: labor availability, supply delays, and pressure on reagent supply all threatened delivery timeframes. Our response combines dual-sourcing for critical raw materials, increased in-house process automation, and added redundancy at key bottlenecks—steps driven by practical experience rather than theory.
Sustainability presents both challenge and opportunity. Customers increasingly interrogate us on solvent usage, energy footprints, and waste management. Competing in tomorrow’s market depends as much on lowering process impacts as on flawless technical results. This brings us to the unavoidable: green chemistry. Our team invested years exploring fermentation setups—with the aim to pair competitive cost with traceable, non-fossil chemistry for a subset of applications that reward it. Early data promises 30% lower total energy use. Modern analytics keep these new process streams as controlled and predictable as anything from our legacy synthetic plant. We believe this dual-approach—pairing classic control with innovative adaptation—will set the future benchmark for specialty amino acids like L-Pyroglutaminol.
Long-established customers understand the intangible benefit of working with a direct manufacturer: the person at the other end of the email or phone holds the keys to the cleanroom, the reactor, the raw material intake. We learn from each batch, build out better documentation, and offer more than transactional service. Staff walk the plant floor. Technical teams test new packages and synthesis tweaks months before offering them to customers. This regular cycle of feedback, adaptation, and transparency defines the DNA of our business and makes new product launches less risky and more adaptable.
Everything we have described reflects real workflow in our plant and in hundreds of technical exchanges with global users. L-Pyroglutaminol’s importance comes from unique functional attributes—enantiomeric precision, low process impurity, and rapid solubility—all made real by careful, repetitive hands-on work. Where commodity traders or resellers focus on volumes, as direct manufacturers we bear responsibility for both the chemical and the outcomes downstream. We've witnessed time and again that priorities such as traceability, consistent technical support, and willingness to customize to project requirements mean more to industry innovators than simple cycle cost.
Entering the future, we will keep investing in both proven synthetic lines and new sustainable technologies. Reliable L-Pyroglutaminol supply underpins real and ambitious projects across healthcare, personal care, advanced research, and beyond. For every lot we prepare, our goal goes beyond checkpoints and documentation. We keep open channels with those building the next generation of foods, medicines, and materials, attentive to the reality that every process tweak and improvement lands in someone else’s innovation. That's how we understand and fulfill our role as the original manufacturers of L-Pyroglutaminol, turning technical expertise into shared progress.