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HS Code |
919520 |
| Cas Number | 51-36-5 |
| Molecular Formula | C7H4Cl2O2 |
| Molecular Weight | 191.01 g/mol |
| Iupac Name | 3,5-dichlorobenzoic acid |
| Melting Point | 154-157°C |
| Boiling Point | 323°C at 760 mmHg |
| Appearance | White to light beige crystalline powder |
| Solubility In Water | Slightly soluble |
| Density | 1.63 g/cm³ |
| Pka | 3.78 |
| Flash Point | 149°C |
| Smiles | C1=C(C=C(C=C1Cl)Cl)C(=O)O |
As an accredited 3,5-Dichlorobenzoic Acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Amber glass bottle, 100 grams, tightly sealed with screw cap, labeled with chemical name, hazard symbols, and supplier details. |
| Shipping | 3,5-Dichlorobenzoic Acid is shipped in tightly sealed containers, protected from moisture and incompatible substances. Packages are clearly labeled according to chemical safety regulations. Transport complies with local and international guidelines for hazardous materials, ensuring proper handling to avoid leaks, spills, and exposure during transit. Store in a cool, well-ventilated area upon arrival. |
| Storage | 3,5-Dichlorobenzoic Acid should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area away from sources of ignition and incompatible materials such as strong oxidizers and bases. Protect from moisture and direct sunlight. Ensure proper labeling and keep away from food, beverages, and feed. Follow all relevant chemical storage regulations and safety guidelines. |
Applications of 3,5-Dichlorobenzoic Acid in Industrial Manufacturing3,5-Dichlorobenzoic Acid serves as a specialized intermediate in several high-value chemical industries due to its unique dichloro-substituted aromatic structure. As a direct manufacturer, our focus is on delivering consistent quality to meet advanced formulation and compliance demands across specific downstream sectors. Below are key industrial application scenarios where our material plays a critical role in established value chains, based on real-world customer documentation and audited manufacturing feedback. 1. Agrochemical Synthesis for Herbicide FormulationsProducers of selective herbicides integrate 3,5-Dichlorobenzoic Acid as a defining intermediate in the synthesis of active ingredient cores for post-emergence broadleaf control products. This raw material enters chlorination-coupled coupling reactions, supporting the production of molecules designed for high photostability and weed spectrum precision. Ongoing regulatory scrutiny in crop science further drives demand for traceable, low-impurity chlorinated acid inputs, with quality linkage from starting material through to field-ready herbicidal formulations. Industry compliance standards
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2. Pharmaceutical Intermediate for Antibacterial Drug APIsBranded and generic drug substance manufacturers utilize this material as a building block for the synthesis of antibacterial agents, particularly those with chlorinated aromatic scaffolds. Chlorobenzoyl introduction remains a critical step for the integrity and biological selectivity of downstream antimicrobials. Regulatory Master Files (DMFs) for specific APIs identify sourcing and process stage for QC alignment, obligating manufacturers to stringent validation and container-closure standards throughout handling and storage. Industry compliance standards
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3. Fine Chemicals for Liquid Crystal Material ProductionProducers of specialty liquid crystal materials in the display industry source this acid as a key aromatic acid precursor for synthetically engineered mesogens. Its controlled dichloro-substitution pattern influences polarity, thermal response, and phase transition windows in target molecules used for advanced TFT-LCD and OLED manufacturing. Strict impurity control through each stage of scale-up is required due to downstream impact on pixel stability and panel uniformity in high-resolution applications. Industry compliance standards
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4. Dye and Pigment Intermediate for High-Fastness ColorantsManufacturers in the industrial dyes sector employ 3,5-dichlorobenzoic acid to prepare dye intermediates with improved light- and wash-fastness for technical textile and plastics coloration. Its positional dichloro moieties yield reactive groups for coupling in the creation of metal complex dyes, acid dyes, and proprietary pigments. Detailed source and purity documentation remains critical to meet major downstream audit and batch trace requirements, particularly in compliance-conscious international markets. Industry compliance standards
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5. Polymer Additive Synthesis for Advanced Material ModificationPolymer manufacturers engaged in developing specialty polyesters and engineering plastics source 3,5-dichlorobenzoic acid as a functional monomer for end-group modification and molecular weight control. Its dichloro-substituent structure improves the crystalline nature, flame resistance, and mechanical integrity of final polymers, especially under conditions demanding regulatory documentation for contact materials and automotive components. Industry compliance standards
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At our chemical manufacturing site, we handle 3,5-Dichlorobenzoic Acid from the ground up, using precision and process control shaped by decades of hands-on experience. Our journey with this chemical started as a response to the strict needs of the pharmaceutical and agrochemical industries, where every molecule matters. Instead of taking shortcuts, our teams break down the process, monitor purity at key stages, and don't let a single batch slip through without inspection. Our product doesn't leave the plant until it indicates a consistent melting point and purity—details that reach beyond marketing and enter the territory of practical reliability.
The true backbone of any value-added chemical is the adherence to strict specifications. For our 3,5-Dichlorobenzoic Acid, we track assay, melting range, appearance, and moisture content batch by batch—actual numbers, not just promises. Typical specifications we hit with each shipment include a purity greater than 99.0% as determined by HPLC, with a melting range that reflects uncontaminated processing. We pay attention to trace impurities and guarantee analysts see what they expect under standard lab conditions. Many customers ask about the appearance and consistency: each unit brings forth a white to off-white crystalline powder, easy to handle in large-scale processing or precise lab-scale synthesis.
Scientists want to see real stability when sourcing building blocks for further synthesis. Our process repeats with continual monitoring, so values for known impurities and water content follow a tight pattern. Handling batches at scale reveals the truth—minuscule deviations in process translate into differences in reaction outcomes. That is why every package comes with a certificate reflecting direct, recent data.
In our experience, 3,5-Dichlorobenzoic Acid appears again and again as an essential intermediate. Pharmaceutical chemists often require it when developing plant growth regulators, herbicides, and certain anti-inflammatory drugs. Our customers in the agrochemical sector have identified this molecule as a reliable precursor that rarely gives unexpected results under typical lab or pilot conditions. Lab chemists working on scale-up have commented on its consistent behavior during chlorination, carboxylation, and coupling reactions; control and predictability mean less unexpected downtime.
New researchers coming into the lab sometimes find little information scattered across references and journals, but as a bulk manufacturer, we have seen it act as a robust platform for transformations like amidation and esterification. It survives transit and storage without picking up significant degradation. That real-world stability plays a role for firms looking to qualify new sources; filtration and crystallization always line up with expected parameters.
It’s common for buyers and technical teams to compare 3,5-Dichlorobenzoic Acid with close analogues such as 2,4- or 2,5-dichlorobenzoic acid. Differences run deeper than just the position of the chlorine atoms. The substitution pattern affects acidity, solubility, and reactivity in subsequent steps. In our own downstream operations and those of our partners, positional isomers require distinct purification approaches and sometimes different solvents for effective processing.
For example, 3,5-dichloro substitution offers a unique balance—increased resistance to oxidation compared to its mono- or 2,4-dichloro counterparts. During the formation of esters and amides, we observe reactant ratios must be slightly adjusted, reflecting electron-withdrawing effects and differences in basicity. Product crystallization becomes simpler with the 3,5 isomer, showing less tendency for oiling-out and easier filtration. These subtle benefits might go unseen by occasional users but grow clear to those producing at ton scale.
Every batch starts with careful weighing and verification of raw materials. Chlorination and carboxylation both get tracked by inline sensors. Human oversight catches minor instabilities that sometimes evade automation: shade of the intermediate paste, degree of dryness after solvent removal, odor suggesting trace organics that shouldn’t be there. Each stage is cross-checked with earlier process data. Our operators notice even minor clumping in the drying ovens, and they discuss these quirks with our in-house chemists. The collaboration has helped us develop a database of behavioral “tells” that predict final product quality well before analytical checks are finished.
Finishing and packaging also reflect a manufacturer’s mindset. There’s no reliance on throughput alone—blocking contaminants from entering the finished product area, using inert liners, and running tests for trace solvents and metallic residues. Most labs measure purity using HPLC or GC, but the feel and flow of the solid during transfer can tell the story too. We mark every container with batch data, fresh assay, and analyst initials. Clients see transparent records, not generic paperwork.
Over the years, we've watched the chemical industry weather changes: raw material fluctuations, shifts in regulatory frameworks, environmental restrictions that redefine viable processes. It’s not enough to make a product that passes minimum checks. Over time, new synthesis routes have pushed us to refine our chlorination steps and water work-ups, carving out inefficiencies by recovering and recycling solvents, and sometimes retraining operators on new safety gear for changing regulations. Our plant team has faced logistics issues—shortages in one feedstock spark quick reformulation and testing protocols. Instead of delaying deliveries, we rely on reserves and internal flexibility to keep pipelines flowing.
Pharmaceutical integration standards tighten each year. Our technical team spends as much time on documentation and cross-border regulatory harmonization as they do on the process itself. This means certifying that 3,5-Dichlorobenzoic Acid leaves the plant free of restricted elements, controlled genotoxins, and unacceptable levels of residual solvents. Internal audits expose weaknesses, spark corrective training, and keep the full team alert. As a result, clients with tight audit requirements have a steady source of material, often visiting our plant with their own teams to inspect batch records and process maps.
Delivering a specialty compound isn’t just filling pails or drums. Each consignment faces distinct requirements: cold-chain preservation for long-distance export, rapid packing for urgent development projects, and strict attention to customs documentation for different ports. With every export, our team connects directly with shipping agents and logistics partners familiar with chemical handling. Forklift operators at our plant undergo regular training not just in heavy equipment but in hazardous materials rules that match the latest regional codes.
Partnership with direct users forms the heart of our knowledge base. Over years, customers from Europe, Asia, and North America report on technical queries that have shaped our procedures. Some want extra NMR data to confirm identity after their own reactions run into side-product formation. Others reach out with details about unusual color pickup, so we examine air-handling or column packing adjustments inside our dryers. Industrial clients typically ask for feedback loops—sending back test samples or sharing process bottlenecks they can’t solve in-house. By reviewing these, we refine crystallization or adjust sieving methods, closing the loop between lab theory and plant reality.
Smaller research groups often require smaller pack sizes and rapid re-supply. We offer tailored packing solutions: packed to minimize loss on transfer, clear labelling, and one-on-one technical follow-up as users qualify their process steps. There's no barrier between the production area and after-sales support. Our operators and chemists field technical calls, tracking trends outlined by process engineers on the customer side.
Business development managers from several long-term buyers have reported fewer delays and smoother integration after switching to regularly scheduled supply direct from our plant. When requests for documentation turn up, such as stability data under varied conditions, we share results from our own long-term storage tests. Our product routinely holds specification after twelve months at ambient and refrigerated storage.
Continuous feedback drives internal improvements. Last year, a batch flagged by a client for anomalous melting point sparked a full-scale audit. Our technical team traced the issue to a minor valve leak introducing moisture before final drying. By patching the leak and implementing a real-time moisture check, we restored consistency. Internal logs now track such issues on each shift, building a knowledge base that feeds into operator training. This cycle closes gaps not only for 3,5-Dichlorobenzoic Acid but benefits overall plant reliability.
External audits offer another source of insight. International clients sometimes bring their own auditors, who review not only products but operational routines, training logs, and plant hygiene practices. Rather than treating this as an obligation, we leverage the feedback to raise our own benchmarks. Several improvements in ventilation and packaging stem from these detailed inspections.
Embedded quality culture eliminates surprises. Finished product checks, including FTIR, HPLC, and melting range, highlight slow drifts that might crop up due to seasonal process water changes, supplier shifts, or newly introduced reagents. Our in-house QA leads don’t leave testing to the end—they probe intermediates, process temperatures, and reaction times with real-time sensors connected to our batch record system. Operators flag any unreadable data and isolate suspect output before it reaches the packaging area.
We follow internationally recognized test methods and participate in proficiency testing within the chemical industry to keep bias in check. Each new staff member runs shadow batches before handling live orders. Recent graduates work on test runs, learning how minor odors or powdery textures affect performance downstream. Experience shows that quick reporting, direct troubleshooting, and open records draw out hidden problems long before they manifest in out-of-spec products.
Manufacturing isn’t a closed ecosystem. Our process design considers waste reduction, solvent recovery, and responsible effluent handling—no corners cut. Regulatory compliance doesn’t remain a formality: actual discharge values are recorded and stored, available for both regulatory inspection and customer queries. Recent upgrades to our scrubber system cut residual emissions, and quarterly soil monitoring guarantees clean handling outside the main site.
We collaborate with local government teams and international compliance bodies to keep current on evolving standards. Any updates in handling, such as new labeling requirements for export, get passed immediately to shipping and packaging staff. Customers importing material into new regions often reach out about documentation, such as certifications for food-adjacent usage and reference to permitted levels in environmental discharge. We coordinate with legal and regulatory advisors to support these needs and communicate verifiable, up-to-date information.
Forecasting demand for 3,5-Dichlorobenzoic Acid remains a challenging exercise, especially with new regulatory changes, crop protection approvals, or drug discovery projects. We’ve learned from past shortages. The plant operates with raw material reserves and backup storage to keep planned shipments from being interrupted by sudden market swings. Customer communication doesn’t stop at shipment—we give clear signals in advance if allocations shift. In unexpected surges, our team works round the clock to scale up, and local raw material partners stay on standby.
Customers in sectors prone to spikes—agrochemical campaigns or pilot runs for new drugs—get priority flags based on historical usage. A dedicated logistics team reroutes or consolidates freight in real time, blending IT-driven planning with on-the-ground experience. Every order ships with batch traceability, giving downstream partners confidence to link their own production cycles and regulatory filings to a clearly defined source.
Not all problems have textbook answers. Sometimes a customer struggles to dissolve the compound for an unusual coupling reaction. Our chemists review solvent suggestions, propose modified order-of-addition routines, or prepare a test batch using alternative grades. Once, an agrochemical partner found unexpected precipitation with their in-house formulation; together, we traced the cause to minor atmospheric moisture absorption during their handling, which we helped resolve by switching to moisture-barrier packs.
The cross-disciplinary nature of this business means our staff learns from users in fields ranging from fine chemicals to environmental science and veterinary medicine. In several cases, we’ve adapted drying and sieving to produce special fractions for unique downstream demands, such as micronized powders for increased reactivity or larger granules that minimize dusting. Always with the mindset that tailored solutions emerge through dialogue, not isolated production.
Standing behind 3,5-Dichlorobenzoic Acid means more than shipping pure compound—it means ownership of every step, openness about challenges, and working knowledge that builds customer trust batch after batch. From the initial process trials to late-night technical calls, we commit to direct feedback, technical accuracy, and visible data transparency. Whether customers approach us seeking consistency, novel specifications, or troubleshooting for downstream synthesis, we bring the full perspective of daily, hands-on manufacturing, ready to support both immediate needs and long-term partnerships. This is not just a job to us—it’s a tradition of making chemistry serve real people and real applications.