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HS Code |
710973 |
| Productname | 3-Nitrobenzoyl Chloride |
| Casnumber | 121-19-7 |
| Molecularformula | C7H4ClNO3 |
| Molecularweight | 185.57 |
| Appearance | Pale yellow to yellow crystalline powder |
| Meltingpoint | 69-72°C |
| Boilingpoint | 305°C (decomposes) |
| Density | 1.49 g/cm3 |
| Solubility | Reacts with water; soluble in organic solvents such as acetone and chloroform |
| Purity | Typically ≥98% |
| Synonyms | m-Nitrobenzoyl chloride; 3-Nitrobenzoic acid chloride |
| Smiles | C1=CC(=CC(=C1Cl)N(=O)=O)C(=O)Cl |
As an accredited 3-Nitrobenzoyl Chloride factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 3-Nitrobenzoyl Chloride, 25g: Supplied in a sealed amber glass bottle with a secure screw cap and chemical hazard labeling. |
| Shipping | 3-Nitrobenzoyl Chloride should be shipped in tightly sealed containers, protected from moisture and incompatible substances. It is classified as a hazardous material and must be handled according to regulatory guidelines, using proper labeling and documentation. Transport should be conducted by trained personnel following all safety protocols for corrosive and toxic chemicals. |
| Storage | 3-Nitrobenzoyl chloride should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area, away from incompatible substances such as water, strong bases, and oxidizing agents. Protect it from moisture and direct sunlight. Store in a corrosive-resistant container and ensure proper labeling. Use secondary containment to prevent accidental spills or leaks. |
Applications of 3-Nitrobenzoyl Chloride in Industrial ManufacturingAs a direct producer of 3-Nitrobenzoyl Chloride, we serve various specialized industrial sectors. The following scenarios illustrate how manufacturers incorporate this raw material into critical downstream applications under established regulatory systems and technical requirements. 1. Synthesis of Pharmaceutical IntermediatesPharmaceutical manufacturers use 3-Nitrobenzoyl Chloride as a key acylating agent when producing advanced intermediates for APIs, especially in the fields of antihypertensive and neuroactive therapies. The compound acylates amines or alcohols in multi-step reactions, forming nitrobenzoyl derivatives required for constructing complex drug molecules. Staff conduct these reactions under standardized cGMP conditions to ensure batch integrity and traceability. The product’s integration into process stages such as amidation or esterification directly impacts intermediate purity, thereby influencing the API quality. Industry compliance standards
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2. Development of Agrochemical Active IngredientsAgrochemical manufacturers introduce our material into synthetic pathways for potent herbicide and pesticide actives. 3-Nitrobenzoyl Chloride’s reactivity with amines and phenols supports production of intermediates in urea-, carbamate-, and oxazolone-type compounds. These actives confer selectivity or resistance properties for commercial crop protection products. Facilities carrying out large-scale agrochemical synthesis apply strict environmental and worker-safety monitoring due to the use and disposal of halogenated by-products. Industry compliance standards
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3. Liquid Crystal Monomer Precursors for Advanced MaterialsMaterials science laboratories and display manufacturers utilize 3-Nitrobenzoyl Chloride when constructing high-dielectric or specialized monomers for use in liquid crystal displays (LCD) and related optoelectronic devices. The nitrobenzoyl group imparts rigid planar structure and electronic polarization, making it suitable for synthesizing aromatic ester or ether monomers. Downstream processing requires high-purity input and controlled esterification, supporting stringent end-use performance and clarity standards. Industry compliance standards
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4. Synthesis of Specialty Dyes and Pigment PrecursorsDye and pigment producers select 3-Nitrobenzoyl Chloride to introduce nitrobenzoyl functionalities during the preparation of azo and anthraquinone dye intermediates. The compound’s reactivity ensures the accurate placement of functional groups that impact color fastness, solubility, and shade in textile, leather, and industrial coatings. Strict impurity control is enforced throughout the process to achieve consistent chromatic properties and comply with export restrictions on banned aromatic amines. Industry compliance standards
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5. Fine Chemical Synthesis for Industrial CatalystsCatalyst manufacturers require 3-Nitrobenzoyl Chloride as a selective acylating agent in the preparative chemistry of organometallic and coordination catalysts. Functionalizing ligands or supports with the nitrobenzoyl group enhances activity, stability, or selectivity in polymerization and petrochemical processes. Precision in stoichiometry and reaction condition control determines the reproducibility of catalyst performance in downstream manufacturing. Industry compliance standards
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3-Nitrobenzoyl chloride often appears in discussion among those who work with pharmaceutical intermediates, fine chemicals, and advanced materials. Our facility produces this compound under the model number NBC-03, focusing on purity and batch repeatability. As manufacturers, we notice requests for this material often come alongside inquiries about similar halide derivatives, usually with questions about how this product performs and what it means for their next process. Day-to-day, most inquiries focus on active ingredient synthesis, specialty polymers, or dye intermediates. The backbone of its use comes from the marked reactivity of the acyl chloride group joined to a nitro-substituted aromatic ring, which influences many downstream reactions.
Once a chemist uses 3-Nitrobenzoyl chloride in a reaction, the aromatic positioning of the nitro group hits home. The meta-nitro placement affects electron-withdrawing and influences both the speed and outcome of acylations, especially versus the ortho or para isomers. What this means in the flask, as we see in analytical runs, is a different product profile and more precise control over side reactions. Manufacturers using this for peptide coupling, for example, find it doesn’t cause the overactivation seen with some more electron-rich counterparts. In our own regular batch controls, we test for appearance, melting point, and purity by HPLC and GC, targeting a purity minimum of 99%, which supports process reliability down our clients’ lines.
Teams in pharmaceuticals ask for 3-nitrobenzoyl chloride because they trust it during the steps to create APIs. Others rely on it in polymer chemistry, where acyl chlorides help anchor desired features or functional groups. Many requests come from projects developing dyes, aramid fibers, liquid crystals, or even agricultural actives. These requests are often tied to tight timelines, and we see the downstream partners seek flexibility: they might test it as an intermediate for new small-molecule leads this month, or in a novel monomer route the next. Our production line adapts to requests for both kilo and ton quantities, with a synthesis route designed to minimize the byproduct formation that sometimes plagues smaller shops working with nitro aromatics.
Manufacturers who have switched between 3-, 2-, and 4-nitrobenzoyl chloride quickly appreciate the importance of substituent location. The 3-nitro variant can offer the best reactivity for some coupling chemistry, often without the steric hindrance of the ortho isomer, and less electronic density than the para. By managing production and handling at-scale, we minimize unwanted hydrolysis, a known risk with all acid chlorides. The specific nitro placement also impacts color stability and offers a longer shelf-life in suitable packaging. Over years of experience, we refined our drying and packing processes, using tight-seal lined drums to keep each kilogram in specification until the lids open on a customer’s floor.
A good example from our lab floor involved a run where the input 3-nitrobenzoic acid started with trace moisture, causing unwanted hydrolysis during chlorination. Our team responded not by tweaking the end-stage, but by rigorously upgrading drying infrastructure upstream. Real-world chemical production always demands respect for seemingly small workflow details—this holds for 3-nitrobenzoyl chloride as much as any fine chemical. Years ago, feedback from one of our dye-manufacturing clients prompted adjustments in our quenching steps, cutting residual byproduct from 0.6% down to less than 0.2%. Every iterative change reflects ongoing partnerships with process engineers solving daily scale-up problems, rather than distant, hands-off suppliers.
By hands-on standards, the story rarely ends at an assay number. We pay attention to the granular details like polymorphs and batch-to-batch consistency. Variations in crystal habit can affect downstream operations—clogging feed hoppers, producing dust, or slowing dissolution—all issues raised to us by real production chemists running hundreds of kilograms. Through repeated feedback cycles, we dialed product drying and micronizing steps, adjusting sieves and agitating flows. None of these elements appear on a datasheet, but they matter: smoother downstream handling turns a good intermediate into a trusted one. Our in-plant QA team runs parallel trials with customer-supplied handling protocols, updating drying and particle size controls when they see a blockage or a slow flow report come back.
Getting 3-nitrobenzoyl chloride from synthesis to shipping takes more than just drums and labels. Each lot requires careful moisture exclusion during inert gas packing. This workday reality is driven by the natural reactivity of acid chlorides with air and water—even minor slips cause off-odors and hydrolysis. We research and measure atmospheric controls, using nitrogen purges and selecting barrier materials that cut down on moisture ingress, based on recorded shelf-life studies and feedback from long-distance shipments. Lab and warehouse workers suit up in gloves and goggles not out of protocol, but out of real experience with splashes or spills that sting and corrode. Our teams developed procedures that catch leaks or pressure build-up before they cause losses, tying procedures to direct lessons learned over repeated campaigns, not theorized from a manual.
We hear from process chemists in peptide synthesis who select 3-nitrobenzoyl chloride specifically to reduce racemization during coupling. Others working in dye manufacture prefer the meta nitro because it tunes chromophore properties and supports stable end-use color. Customers also point out that this nitro derivative offers a cleaner reactivity in substituted aryl couplings than non-nitrated analogs—meaning the purification steps down their own lines are easier and waste is less. Manufacturers using more basic or para-substituted benzoyl chlorides often spend more time removing colored impurities or hydrolysis products. Each feature directly influences the cost-per-batch in actual plant operations.
We moved from single-layer bags to double-sealed, lined drums for shipping after evaluating the moisture sensitivity of 3-nitrobenzoyl chloride alongside port weather logs. During a shipment to a coastal client, condensation rendered part of a cargo batch unusable. As a response we instituted a two-stage packaging audit, combined with passive humidity indicators. These quality upgrades came not from abstract requirements, but from listening to customer pain points. While many fine chemicals leave the factory as solids, the handling difference between a low-dusting, properly crystalline 3-nitrobenzoyl chloride and a clumped, powdery mess impacts not only process yields but operator satisfaction and safety.
Environmental and workplace safety pressures force responsible producers to rethink their chlorination strategies. Over the past decade, we moved from older thionyl chloride-based routes towards cleaner reagents, focusing on waste reduction. Our investment in scrubber upgrades reflects experience gained during routine plant audits where we recorded SOx vent measurements. Byproducts such as HCl are neutralized in-situ, cutting vented acid output by more than half over five years. For runs making 3-nitrobenzoyl chloride, we recover and reuse solvents wherever possible, integrating distillation columns sized to batch output and staffed by trained operators. Every new order presents an opportunity to further dial in both quality and process efficiency.
Having produced thousands of batches, we notice discrepancies that data sheets often miss: slight color shifts, textural changes, unusual odors—all subtle markers of upstream variation. We spot trends using digital batch records and on-site staff with years of training in both the theoretical and practical sides of chemistry. The best outcomes for users always stem from real-world vigilance: regular glassware maintenance, batch records linking raw material lots, and fast response to contamination. We also engage third-party analytical labs for confirmation assays—not as a requirement, but as a check against drift and a builder of trust with recurring clients. These steps allow us to promise—and regularly deliver—material that meets the expectations of demanding process chemists and production engineers.
The global reach for 3-nitrobenzoyl chloride continues to grow, especially as new generics and specialty material projects launch worldwide. As a manufacturer, we have seen a sharp increase in demand from emerging pharmaceutical hubs and specialty polymer plants. Meeting these evolving needs demands not just capacity, but agility—reacting to regulatory changes, REACH guidelines, and customer customizations that go beyond standard material offerings. We work closely with logistics partners to monitor customs issues, transit times, and even container temperature variations, preventing delays or degradation. Teams in our supply chain and compliance offices keep close records on import documentation, realizing how a missed stamp or unreadable label can slow production at a customer’s plant on another continent.
Constant competition from older, less expensive or poorly controlled product sources challenges every factory manager. Yet over the years, the true cost of off-spec or slow-reacting 3-nitrobenzoyl chloride always catches up—in re-runs, higher byproduct removal, or compliance headaches with disposal. That knowledge led us to invest in new control software, data logging hardware, and faster feedback loops between manufacturing, QC, and customer service. Chemical manufacturing—at its best—relies on a partnership between plant and customer: an ongoing cycle of feedback, troubleshooting, and adjustment.
Some customers need tons at a time, filling continuous reactors or long campaign runs. Others want reactive samples for new candidate drug projects, sometimes in just the hundreds of grams to shake down routes and flush out analytical methods. Our team learned not to treat these runs as one-size-fits-all: small-lot synthesis occurs in a part of our site with specialty glass reactors, segregated from the tonnage scale steel reactors that handle bulk orders. This division keeps cross-contamination to a minimum and allows the same material to launch a pilot program in a pharma startup or keep an established production line moving smoothly.
Certain downstream users want more than standard 3-nitrobenzoyl chloride. We’ve worked with partners who ask for very fine or coarse material, specified through particle size distribution studies we conduct in-house. Others require lower residual solvents, especially those in regulated markets, so we back up every shipment with a batch-specific certificate of analysis and offer supplementary checks by Karl Fischer titration or GC-MS. Still others ask for improved flow characteristics, addressed by small adjustments in crystal habit and drying. No matter the request, every tweak comes from direct dialogue with process engineers, not broad product literature.
Over years of experience, a clear truth emerged: handling nitrobenzoic derivatives safely and reliably at scale demands both equipment upgrades and operator retraining. After a 2017 incident where a legacy rubber gasket failed under load, introducing a contaminant, we moved our production lines to Teflon-lined systems. This investment cut product contamination rates by more than 80% across subsequent campaigns and allowed new automation software to track temperature spikes in near real time. These improvements were driven by necessity—more than a few challenging situations in our early days taught us that every dollar spent improving infrastructure pays back in stability and customer trust.
Succeeding in process chemistry rarely means always sticking to the book. Supply leaders purchasing 3-nitrobenzoyl chloride look for certain critical assurances: closed packaging, reliable delivery, rapid technical support, and responsiveness to urgent production issues. As manufacturers, we adapt repeatedly—changing materials of construction, investing in scrubbers, and shifting production schedules around unforeseen equipment issues or raw material delays.
Managing complexity and scale becomes a straightforward exercise in discipline and data. Product lines only thrive through open communication, rigor in every batch step, and attentiveness to client feedback—lessons learned and applied by our team over decades working with demanding chemistries. Owning mistakes, quickly correcting course, and investing in newer, cleaner, safer technology remains our baseline. Every new ton of 3-nitrobenzoyl chloride produced under our roof echoes these lessons, building trust batch after batch, year after year.
Our customers measure success by yield, purity, and simplicity in their own downstream processes. In practice, these goals happen when their 3-nitrobenzoyl chloride arrives with the right reactivity, the correct crystalline structure, and a level of documentation and technical backup that answers questions before they arise. Feedback loops run both ways: as manufacturers, we mature with every production run, every deviation identified, every improvement seeded by close partnership with our partners. Over time, this approach leads to longer relationships, smoother projects, and reliable supply to a marketplace that values both speed and substance.
