| HS Code | 353356 |
| Chemical Name | Tetrahydropyrimidine Carboxylic Acid |
| Molecular Formula | C5H8N2O2 |
| Molecular Weight | 128.13 g/mol |
| Appearance | White to off-white solid |
| Melting Point | Varies (typically around 160-170°C) |
| Solubility | Soluble in water and polar organic solvents |
| Boiling Point | Decomposes before boiling |
| Pka | ~4-5 (for carboxylic acid group) |
| Storage Conditions | Store in a cool, dry place away from light |
| Stability | Stable under normal storage conditions |
| Odor | Odorless |
| Density | Approximately 1.3 g/cm³ |
| Purity | Typically ≥ 98% |
| Synonyms | 1,2,3,4-Tetrahydropyrimidine-4-carboxylic acid |
As an accredited Tetrahydropyrimidine Carboxylic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Tetrahydropyrimidine Carboxylic Acid, 100g, supplied in a sealed amber glass bottle with tamper-evident cap and hazard labeling. |
| Shipping | Tetrahydropyrimidine Carboxylic Acid should be shipped in tightly sealed, chemical-resistant containers, protected from light and moisture. Transport should comply with relevant chemical safety regulations, including appropriate labeling and documentation. Handle with care, using secondary containment if needed, to prevent leaks or spills during transit. Store in a cool, well-ventilated area upon arrival. |
| Storage | Tetrahydropyrimidine Carboxylic Acid should be stored in a cool, dry, and well-ventilated area away from incompatible substances, such as strong oxidizers. Keep the container tightly closed and clearly labeled. Protect from moisture and direct sunlight. Use proper chemical storage cabinets if available, and follow local regulations for storing hazardous chemicals to ensure safety and stability. |
As a dedicated producer of Tetrahydropyrimidine Carboxylic Acid, we supply high-purity raw material directly to manufacturers seeking reliable performance across regulated industrial value chains. The following sections detail specialized downstream applications where our material delivers functional value, each governed by strict industry norms and differentiated by production technique, compositional requirements, and final product profiles.
Pharmaceutical manufacturers incorporate Tetrahydropyrimidine Carboxylic Acid during the synthesis of key heterocyclic APIs and intermediates, especially where controlled ring-forming reactions demand high selectivity and regulatory-driven traceability. The compound participates as a scaffold-builder in the multi-stage pathways of pyrimidine-derived drug substances, supporting process validation and meeting critical impurity thresholds for regulated final forms. Each route undergoes optimization for solvent compatibility and residual management, as required by global pharmacopeial and GMP frameworks.
Industry compliance standards
Typical usage ratio
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In agrochemical synthesis, downstream producers use our material as a strategic building block when assembling novel heterocyclic actives that target selectivity against pests or fungal pathogens. Consistent physical properties permit high-yield transformations under pilot and large-scale flow chemistry, ensuring compliance with agricultural and environmental registration protocols. Adjustments to feed ratio respond to seasonal or regional actives portfolios, maximizing plant throughput without breaching industry-mandated impurity specs.
Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
Specialty coating manufacturers integrate our compound as a chain-modifying monomer to tailor cross-linking density and film flexibility in UV-cured resin systems. Its controlled reactivity supports precision in polymer backbones where conventional monomers lack compatibility with heteroatom-containing structures. Compositional adjustments follow required weathering resistance and substrate adhesion profiles, with downstream facilities performing full traceability under industrial hygiene protocols.
Industry compliance standards
Typical usage ratio
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Producers of high-performance engineering plastics use Tetrahydropyrimidine Carboxylic Acid as a functionalized chain stopper or comonomer within condensation polymer networks. Its integration enables fine-tuned melt flow and heat distortion parameters crucial for components exposed to cyclic thermal and mechanical stresses. Exact feed rates balance the maintenance of molecular weight distribution against expected regulatory extractables and leachables, as measured under product qualification schemes.
Industry compliance standards
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Specialty reagent producers incorporate this compound as an advanced derivatization agent or stability marker in chromatographic standards, enabling sensitive detection in pharmaceutical and environmental residue analysis. Its defined reactivity and purity profile simplify downstream quality assurance, ensuring reliable calibration and method validation in GLP/GMP-regulated laboratories. Adjustments in loading account for matrix compatibility and target analyte detection limits.
Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
Competitive Tetrahydropyrimidine Carboxylic Acid prices that fit your budget—flexible terms and customized quotes for every order.
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Every product has a story, and for those of us who make Tetrahydropyrimidine Carboxylic Acid, it’s been years of careful listening and learning from chemists, formulation scientists, and the challenges that show up in process scale-up. On the production side, our daily focus stays on creating a material that helps partners drive reliable results—batch after batch, order after order. We’ve never seen our acid as just a code in a catalog; we see it as a product of steady hands, time-tested processes, and trust in reproducibility.
Many people in the industry know there’s always a gap between “lab grade” powders and what actually holds up in ton-scale settings. The story of Tetrahydropyrimidine Carboxylic Acid starts here. By tuning particle characteristics and moisture content from the reactor all the way through the drying step, we address a longstanding problem that used to aggravate development chemists: lot-to-lot inconsistency. It took plenty of patience and sometimes stubborn refusal to compromise on intermediates that didn’t meet the bar. Our staff measures the product against both set standards and customer feedback, iterating formulations until handling and reactivity meet strict expectations.
Our most common model, THP-CA 98, refers to a chemical purity of not less than 98%. In our plant, purity is a number but also a benchmark for side-product control. By keeping a tight handle on process temperature profiles and pH during synthesis, we see cleaner crystallization and less by-product formation. The resulting powder doesn’t just meet a purity target—it sets a baseline for lower residual solvents and controlled impurity profiles, which reflects in smoother downstream reactions, whether that’s cyclization in a pharma intermediate or functionalization in advanced material research.
Water content looks small in the paperwork, but anyone who’s scaled up from grams to kilos knows residual moisture can trip up storage or cause aggregation. We use a vacuum-drying system built in-house to keep the typical moisture content below 0.3%, which has borne out as the sweet spot for both shelf life and usability in glass-lined reactors. The crystalline size distribution is another detail that ends up mattering: uniform particle distribution ensures even wetting and dispersion in most applications. Getting this right came from trial, error, and a steady dialogue with both pharmaceutical and fine chemical clients who know their process details better than anyone.
Out of the dozens of carboxylic acid derivatives we see, Tetrahydropyrimidine Carboxylic Acid’s role as a core intermediate finds traction in fields reaching from heterocyclic chemistry to agrochemical design. We’ve watched it flow into synthetic pathways as a precursor to more complex pyrimidines and as a modular block in building chiral frameworks. Researchers prefer it in condensation and cyclization reactions where side reactions often compromise yield if the starting material isn’t pure or sufficiently reactive.
Chemists keep telling us that consistency isn’t just about purity—flowability and dispersibility affect how easily an acid incorporates into automatic feed systems or whether it clogs nozzles in continuous operations. Feedback from pilot plants encouraged us to optimize the particle morphology so the powder could pour easily and feed smoothly, cutting back on downtime and cleaning cycles. Tetrahydropyrimidine Carboxylic Acid from our reactors behaves predictably on the line and in the mixer, an experience that can only come from repeated feedback and a willingness to adjust manufacturing details that most outside our field would consider minor.
We see plenty of lab literature where the scale and idealized reaction conditions make everything look simple. On the ground, plant chemists face the rough edges—clumping, unpredictable reactivity, sensitivity to trace contaminants. We’ve spent years figuring out the main sticking points. By maintaining closed-system operation from synthesis right through packaging, oxidation is kept low, and this means our customers face less outgassing or off-flavors in downstream work.
Some producers might focus on bulk throughput, but it doesn’t mean much if each lot presents a new challenge. We sample exhaustively, not just for the usual purity analysis, but for those barely-detectable side products that can sour a catalytic hydrogenation or a modern cross-coupling. By tracing product lots right back to reactor conditions and raw material suppliers, we keep deviations in check. No matter the run size—lab lots or drum batches—customers come back because surprises during production cost money and time, two things their teams never have enough of.
Experienced synthetic chemists often ask: what advantages does Tetrahydropyrimidine Carboxylic Acid have compared to malonic acid derivatives, or standard cyclic acids like barbituric acid? The answer depends on context, but from production and application standpoints, it’s about both reactivity and selectivity. The nitrogen atoms within the heterocycle open up diverse reaction routes, especially for N-functionalization in medicinal and agricultural chemistry pipelines. Where malonic acid might falter in building fused-ring systems or tailoring heteroaromatic frameworks, our product steps in, supporting step-economical processes that cut down on time and solvent usage.
Barbituric acid appears similar on paper, but the properties diverge in multidimensional NMR and practical synthesis. Tetrahydropyrimidine Carboxylic Acid resists certain side-ring closures and supports a more predictable pathway for amine modifications. We’ve seen it bring efficiency to research groups synthesizing libraries for biological screening and special materials. Reports from large-scale users have shown reduced impurity carryover, particularly in multi-step syntheses, and that shaves hours from both analysis and rework.
Many manufacturers highlight certifications; we focus on the structures and habits that guarantee consistency. In practice, that means routine cross-checks of every input metric, from the purity of starting diamines to the calibration curves used by our HPLC team. Over time, we’ve invested in equipment that gives instant, in-process feedback so adjustments happen before any tank cools down. Handling feedback from researchers who demand both analytical reproducibility and practical usability keeps us focused on optimizing—not just batch results, but the entire movement from raw solids to sealed, labeled containers.
We keep a logbook of questions customers ask, like: will the acid hold up if stored at ambient conditions for three months? Will any air or light exposure impact color or cause yellowing? To answer these, we built a stability testing regimen that tests aged samples under light, heat, real-world humidity, and variable packaging types. Reports show that, thanks to low residual moisture and close attention to trace oxidants, degradation profiles remain flat within normal storage periods, and the product keeps its visual clarity and functional performance.
Every facility faces its own distinct set of challenges. Collaborating with downstream users has taught us a lot about process integration: blend flowability, dust control, and resistance to caking affect not just the throughput but also worker exposure levels and the ease of clean-up. Some users encountered problems with earlier generations of the product sticking to feed augers or bridging in hoppers. Our team worked closely in pilot plants to tweak drying parameters and modify surface texture, observing the powder’s movement and collecting feedback until the frequency of stoppages dropped.
In pharmaceutical plants, trace impurities can propagate through a whole synthesis, threatening regulatory acceptance. A common concern involves removal of phenolic and aldehyde by-products. We developed corrective steps: in-line scavenging and sequential crystallization that cut these contaminants below HPLC detection limits, saving downstream purification effort for customers. This wasn’t innovation for its own sake, but real answers to headaches observed and solutions proven by data.
Handling sensitivity to temperature or humidity during transit led us to reinforce packaging with multi-layer barriers and desiccant systems that don’t introduce new extractables or leachables. Logistics seldom gets talked about, yet, from the manufacturer’s end, keeping a product chemically stable on truck or air shipment is as important as the chemistry itself. By doing round-robin shipping trials and checking samples at the destination, we confirm results firsthand, adjusting our approach when results are subpar.
We’ve supported client partners in their compliance efforts, especially for new drug submissions or agricultural approval dossiers. Authorities today put significant scrutiny on impurity profile data, elemental analysis, and sources of batch variability. From day one, we have collected extensive analytical data packs—not just to tick off a regulatory box, but to build customer trust. Changes to process parameters or raw materials are managed under controlled change logs, so every customer receives predictive stability data and up-to-date specification sheets.
Safe handling on both plant and customer sides matters at every production stage. Teams work under reinforced ventilation and use closed transfer systems to keep occupational exposure and contamination risk low. Shipping documentation always travels complete with every lot, reflecting not just what regulations require, but the real-world safety notes that operators want to see before opening the drum or bag. Feedback from partner plants leads to continual updates in our safety protocols.
Making Tetrahydropyrimidine Carboxylic Acid well demands more than just logic and numbers—it takes patience, partnerships, and the discipline to focus on what matters most to customers. Every improvement in process control, packaging, and product handling comes from listening to users and applying what’s been learned in hundreds of runs and dozens of lab collaborations. We see ourselves as contributors to the daily work of scientists and engineers striving for accuracy, compliance, and better results.
Moving forward, we plan to double down on direct dialogue with those pushing boundaries in complex synthesis and downstream applications. The needs of research, pilot, and commercial operations always shift, and our job is to ensure reliable supply keeps up with innovation and demand. By cultivating close relationships with process chemists and introducing responsive tweaks in production, we’ll keep Tetrahydropyrimidine Carboxylic Acid a foundation material for scientists across pharmaceutical, crop science, and specialty chemicals.
The story of this chemical is written by everyone who uses it. For manufacturing teams, the greatest pride comes not from technical descriptors, but from knowing we solve concrete problems—whether it’s cutting hours of downtime, saving thousands in purification, or making a small difference in the life of a research team halfway around the world. That’s the perspective from our end of the pipeline.