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HS Code |
690994 |
| Chemical Name | Benzyl Orange |
| Cas Number | 71173-85-6 |
| Molecular Formula | C17H14N2O |
| Molecular Weight | 262.31 g/mol |
| Appearance | Orange powder |
| Solubility | Soluble in water and ethanol |
| Melting Point | 184-188°C |
| Purity | Typically ≥98% |
| Storage Conditions | Store at room temperature, keep container tightly closed |
| Application | Used as a pH indicator |
| Color Change Ph Range | 1.4 - 3.2 |
As an accredited Benzyl Orange factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Benzyl Orange is packaged in a sealed, amber glass bottle, 25g, with a secure screw cap and clear hazard labeling. |
| Shipping | Benzyl Orange should be shipped in tightly sealed containers, clearly labeled, and protected from light and moisture. It must be handled as a chemical substance, following standard safety protocols. Transportation should comply with relevant local and international regulations for hazardous chemicals to ensure safe and secure delivery to the destination. |
| Storage | Benzyl Orange should be stored in a tightly closed container in a cool, dry, and well-ventilated area, away from direct sunlight and incompatible substances such as strong oxidizers. Avoid moisture and extreme temperatures. Ensure the storage area is clearly labeled and complies with appropriate chemical safety regulations. Personal protective equipment should be accessible for handling and accidental spill management. |
Applications of Benzyl Orange in Industrial ManufacturingBenzyl Orange serves as a specialized chemical ingredient for several established industrial sectors. Our direct manufacturing experience covers a range of practical downstream applications where regulatory compliance, process-specific integration, and end-product consistency are critical for customer operations. 1. Laboratory Analytical Reagent for pH DeterminationMany analytical laboratories employ Benzyl Orange as a pH indicator in titrimetric analyses, especially for the determination of acid-base endpoints in water quality testing and process monitoring. Its high color contrast and clear transition point assist laboratory staff in delivering precise and consistent results across repeated runs and varying sample matrices. Industry compliance standards
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2. Dye Manufacturing – Synthetic Dyes for Textile PrintingBenzyl Orange is an intermediate in the synthesis of specialty azo dyes used for direct printing on cellulosic textiles and blended fabrics. Dye producers rely on consistent purity for reproducible batch coloration and shade matching, especially when supplying OEMs with strict tone requirements for industrial uniforms, linens, and home textiles. Industry compliance standards
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3. Paper Industry – Wet-End pH Control IndicatorPaper mills use Benzyl Orange preparations as a wet-end pH indicator to monitor pulp processing conditions, providing real-time feedback for adjusting chemical additive dosing. Paper production benefits from stable color response during high shear mixing and compatibility with wood pulps and recycled fiber blends. Industry compliance standards
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4. Chemical Process Monitoring – Emulsion PolymerizationProducers of emulsion polymers, such as styrene-butadiene latexes, use Benzyl Orange as a visual monitoring tool for in-process pH control. During polymerization, maintaining strict pH windows ensures particle stability and uniform dispersion, directly impacting latex rheology and downstream performance in applications like paper coatings and adhesives. Industry compliance standards
Typical usage ratio
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Competitive Benzyl Orange prices that fit your budget—flexible terms and customized quotes for every order.
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Benzyl Orange stands out among organic dyes. Our team has been producing and refining this product for years, drawing knowledge from countless batches, test runs, and the steady hands-on work of our crew. Benzyl Orange (C17H14N3NaO2S), known in labs for its bright, distinctive hue, offers industrial users a dependable colorant for analytical and manufacturing applications. We manufacture this compound using reliable feedstocks, under careful process controls that we have developed through persistent evaluation and adaptation.
The physical appearance of Benzyl Orange signals its purity – a warning orange-red powder, strong and clear, without muddiness or flecks that signal poorly run syntheses. Moisture levels and contaminant content always come in within tight specifications because we control every parameter of our production reactors and filtration steps. This matters for anyone who relies on shadow-free color, predictable blending into aqueous solutions, or needs to track concentration shifts in titration work.
Our knowledge goes beyond theoretical purity. Throughout the production process, choices we make – from solvent ratio to agitation speed in the diazotization stage – can shift the end quality. Over the years, we learned that fine-tuning the coupling agent helps produce a batch with high dyeing strength, lower background discoloration, and a grain size that wets fast in solution. We also found that temperature spikes during cooling wreck particle stability, so we use a staggered chilling approach.
In the drying room, controlled airflow prevents caking, guarding against those expensive off-spec downgrades. Our QC chemists check each lot using UV-Vis scans and thin layer chromatography, looking for by-products and isomer drift. Quite a few times, lowering our batch pH control by a fraction cut down on extraneous by-product spotting, especially during high-humidity seasons.
The primary model we supply meets analytical grade standards, with dye content around 85-90%, sodium salt basis. Each shipment presents as a fine, flowable powder, not granules or pressed cake, which means easy weighing and fast dissolution. We maintain solubility at >100g/L at room temperature, making it well suited for both lab and larger-scale operation. The hue strength rests at an absorbance maximum around 470 nm, as confirmed batch-by-batch on double-beam UV-Vis instruments. Our in-house process delivers extra consistency lot-to-lot, with colorimetric values locked in by keeping impurity and ash content under 0.5%, and heavy metals significantly below global allowable limits.
Customers have noted the difference compared to brokered Benzyl Orange – our product does not generate unexpected turbidity in standard titrations, and background dye migration runs lower due to our multi-step washing protocol. Not all grades on the market undergo that extra final rinse, but our experience showed that skipping it invites unpredictable color bleed, especially in delicate lab procedures or formulations requiring optical clarity.
One of the chief uses for Benzyl Orange centers on its role as a pH indicator, especially within the pH 3.0–4.6 range. Relying on the stability and rapid color change, labs across water testing, food quality assurance, and academic research have built standard procedures around our product. When you drop Benzyl Orange into an acidic solution, it shifts from orange to red, a transformation that’s both easy to spot and dependable, as long as the material stands up to repeated solution cycles. Our batches show resistance to fading thanks to the careful exclusion of air-sensitive by-products during drying. That’s a real-world difference manufacturers working on batch runs of indicators or test strips have highlighted – their end products lack dullness or patchiness, and users can spot a color end point clearly, even in less-than-ideal light.
In textile dyeing, although Benzyl Orange serves mainly niche applications, colorists value predictable absorption. Synthetic fibers like nylon and acrylic require a dye that enters the fiber matrix smoothly without odd undertones or leaching. Over time, our process improvements increased dye uniformity – trials with partner mills revealed that modifying our salt addition sequence helped the dye fix more evenly, reducing streaks and splotches. A few clients even reported a drop in wastewater color load because higher bath exhaustion lowered run-off dye loss.
Many colorants fill lab and industrial needs, yet Benzyl Orange brings specific advantages. Compared to Methyl Orange, Benzyl Orange presents a more distinct color change in the slightly more acidic range, making it valuable in specialized titration protocols, particularly those tracking calcium or similar cations. Methyl Orange, while more ubiquitous, sometimes shifts too gradually for high-precision tasks. With Benzyl Orange, the endpoint’s visual clarity saves time and cuts down on operator judgment errors – a fact demonstrated in feedback from water quality labs using our product during proficiency testing.
Bromocresol Green sits further up the pH spectrum and looks green rather than orange, which can complicate endpoint detection in high-color-background matrices. Benzyl Orange provides higher color contrast in those settings. Most critically, some synthetics or lower-grade imports show broad absorbance shoulders, making measurement errors more likely. From our batch history, we’ve seen that keeping our raw material supply chains stable reduces batch-to-batch deviation, preventing this common issue.
We also see stark differences in performance and safety versus some orange azo dyes produced by shortcut methods. Some suppliers skip proper isolation steps to save cost, resulting in hazardous aromatic amines as contaminants. Consistent feedback from toxicity and safety testing partners points out that our controlled process—specifically our alkali wash sequence during synthesis—results in very low residual toxic impurities, well inside European and North American safety guidelines. Research labs performing animal or plant studies have described smoother regulatory approval paths using our product over cheaper alternatives thanks to this attention.
Running a chemical plant comes with its share of sleepless nights, particularly when you know every percent of yield and every particle’s performance speaks to your team’s skills. With Benzyl Orange, our post-synthesis controls start before the batch leaves the reactor. Every sample is run through HPLC and UV-Vis scans. We inspect particle size with laser diffraction, not just sieves—a lesson learned after too many complaints years ago from customers facing incomplete dye dissolution in their applications. Fine, even powder now wins praise from compounders working with automatic dispensing systems in high-volume labs.
Certain customers need extra-low chloride or sulfate levels (especially in pharmaceutical or fine chemical analysis). About a decade ago, a customer’s product failed a cleanroom audit due to trace chloride contamination, sparking a total overhaul of our rinsing protocol. Now, all Benzyl Orange lots intended for sensitive uses go through a multi-stage ion-exchange wash—a design choice that costs more in water and resin, but one we stand by after seeing the jump in positive reviews and repeat orders from pharma clients.
Producing Benzyl Orange at scale involves constant vigilance. Long supply chains for precursor chemicals, especially during periods of global logistics disruption, have forced our team to tighten inventory practices and qualify new suppliers. When certain raw materials dried up during recent years, we built redundancy into our sourcing, favoring vendors with environmental and social responsibility practices that match our own. To keep end-user products safe, our team audits all new suppliers using total impurity profiles and spectroscopic fingerprinting, an improvement born from the school of hard knocks—years ago, a contaminated batch led to a week-long shutdown; now, we don’t let anything through without strict in-house sign-off.
Environmental impact remains an ongoing concern. Traditional azo dye manufacturing can generate problematic waste streams if run without care. Our plant treats all effluent through a closed-loop biological treatment system. After analysis pinpointed color compounds making it through early treatment stages, we invested in a membrane ultrafiltration add-on. This added process step captures and breaks down color bodies that would otherwise persist in surface water—with better results confirmed by independent audits. Recently, local regulators highlighted our plant’s color discharge tests as an example for others in the district.
Worker safety forms another critical pillar. Benzyl Orange, though stable in routine use, does produce fine airborne dust in powder form, and large enough quantities present inhalation risk. Every shift starts with respirator and ventilation checks. Years ago, we redesigned our bagging line to include a dust extraction system after one craft operator experienced mild dye sensitization. Now, dosing and floor cleaning procedures stress regular PPE changes and HEPA filtration to further reduce risk, adding to crew health and peace of mind.
Over the past decade, we’ve gathered suggestions directly from end-users and customers who build real-world things with our Benzyl Orange. Specialty chemical blenders wanted a version with ultra-low water content for certain masterbatches; we responded by switching to low-humidity drying rooms and adding in-line moisture sensors. University teaching labs reported clumping after long-term storage, prompting us to invest in higher-barrier packaging that preserves free-flow nature even in regions with monsoon seasons.
A major analytical lab wanted better performance in semi-automated titration robots that rely on precise dosing. Our R&D team isolated minor particle agglomeration as the cause—trace condensation during packaging. After modifying packing lines and switching to lined, heat-sealed drums, users measured much-improved dispensing, with minimal residue in automated feeder systems. Our relationship with these customers has lasted because we use these field reports to drive changes, not just file complaints away.
Large-volume users—especially those working in developing markets—face challenges with product adulteration or supply chain substitution. We work directly with these clients, hosting site visits and sharing batch-level COA data transparently. After a South Asian distributor reported cut lots entering their market, we started producing secure QR-coded labels on every drum. Customers could then directly verify origin and see key test results on our web portal. This simple step cut fraud claims and improved trust for all involved.
It’s easy to overlook products like Benzyl Orange. They rarely headline industry reports, yet for chemists, process engineers, teachers, and manufacturers, using the right indicator or dye at the right moment cuts costs, improves safety, and backs up analytical accuracy. We know because we’ve seen what happens when the product falls short. Years ago, one of our multi-ton shipments missed purity targets thanks to a brief loss of coolant in the color development step—a hundred customers flagged excessive side-color in their water sample tests. Recovery involved not just refunds, but weeks of diagnostic work, customer visits, and process overhaul. That experience shaped how we track every batch now: double-checking every process stage, building in margin for error, and supporting the product not only in technical data, but through the people who use it day in and day out.
Other suppliers may offer Benzyl Orange for less, but our focus remains supplying a product that serves chemists honestly: it dissolves the first time, measures true absorbance, provides a clear endpoint, and emerges from the plant with safety and environmental controls in place. The value isn’t just in a number on a spec sheet, but in every test that works, every colleague who stays healthy on the factory floor, and every customer who gets what they paid for, batch after batch, year after year.
The chemical sector faces rising scrutiny over process safety, environmental stewardship, and supply chain integrity. Our Benzyl Orange operations have adapted. Regulatory agencies demand more documented traceability. We now run digitally tracked process logs, from raw material receipt to final drum shipment, to assure that every lot’s trace remains unbroken. Analytical data is archived and made available not for a year, but as long as clients request it, with digital backups in secure storage.
Waste minimization runs through all plant activities. Any solvent that carries residual Benzyl Orange is captured, distilled, and recycled into fresh production. We repurpose still residues for incineration in high-efficiency, pollution-controlled kilns. Water used in washing steps is recirculated, and our emissions are tracked to remain below ever-tightening site limits. This continuous improvement culture—growing out of practical troubleshooting, not just paperwork—wins feedback whenever environmental audits land unannounced.
Benzyl Orange’s future uses will evolve as science and industry move. We stay engaged with our partners in research and education, supplying product samples, listening to new demands, and adapting batch technologies accordingly. Our commitment stands: not just to selling a chemical, but to producing it responsibly, supporting each customer’s requirements, and improving reliability and trust in every shipment.
Each bag and drum of Benzyl Orange leaving our plant reflects the care, knowledge, and effort of our crew—workers, chemists, engineers, and logistics staff who make quality their business. The feedback from our extended network of customers, the lessons written into every SOP, and our willingness to revisit old assumptions ensure that our product delivers much more than a color change. As a team, we have learned that long-term success comes not from chasing the low bid, but from answering customer calls directly, fixing the gaps, and building the real-world solutions that help everyone work better. If there is one thing we have learned from decades making Benzyl Orange, it’s that the details matter, and so do the people on both sides of every transaction.