|
HS Code |
277470 |
| Chemical Name | 4-Chloro-2-Aminophenol-5-Sulfonic Acid Sodium Salt |
| Molecular Formula | C6H5ClNNaO4S |
| Molecular Weight | 245.62 g/mol |
| Cas Number | 88-51-7 |
| Appearance | White to off-white powder |
| Solubility In Water | Soluble |
| Melting Point | Decomposes above 250°C |
| Storage Conditions | Store in a cool, dry place |
| Purity | Typically ≥98% |
| Synonyms | 4-Chloro-2-hydroxyaniline-5-sulfonic acid sodium salt |
| Ph Value | 5.5 - 7.5 (1% solution) |
| Ec Number | 201-828-5 |
As an accredited 4-Chloro-2-Aminophenol-5-Sulfonic Acid Sodium Salt factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | The packaging consists of a 500g amber glass bottle, clearly labeled with hazard symbols and the chemical name: 4-Chloro-2-Aminophenol-5-Sulfonic Acid Sodium Salt. |
| Shipping | The shipping of 4-Chloro-2-Aminophenol-5-Sulfonic Acid Sodium Salt requires secure, sealed packaging to prevent moisture exposure and contamination. It should be transported in compliance with regulations for non-hazardous chemicals. Ensure proper labeling and documentation. Store and ship at ambient temperature, away from incompatible substances and sources of ignition. Handle with appropriate safety precautions. |
| Storage | 4-Chloro-2-Aminophenol-5-Sulfonic Acid Sodium Salt should be stored in a tightly sealed container, away from direct sunlight, heat, and moisture. Store in a cool, dry, well-ventilated area, separate from incompatible substances such as strong oxidizers and acids. Ensure proper labeling and avoid exposure to air and humidity to maintain stability and prevent decomposition. |
Competitive 4-Chloro-2-Aminophenol-5-Sulfonic Acid Sodium Salt prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615380400285 or mail to sales2@liwei-chem.com.
We will respond to you as soon as possible.
Tel: +8615380400285
Email: sales2@liwei-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Manufacturing specialty chemicals often means bridging the gap between lab research and real industrial progress. Among the more dependable intermediates in our catalog, 4-Chloro-2-Aminophenol-5-Sulfonic Acid Sodium Salt stands out for its precise chemistry and consistent performance. Every batch we produce has been crafted with close attention to raw material purity, reaction control, and downstream separation. Over years in production, we've seen this compound’s value in dye synthesis, aqueous ink formulations, and pharmaceutical research. Having hands-on experience with this product, we know how critical small details are. Slight changes in raw material quality, process temperature, or purification will leave footprints in the end product’s performance. The most important lessons we’ve learned come from working directly with our process engineers and QC staff, adjusting small details for stable quality.
Our facility manufactures this sodium salt consistently as a fine, off-white to light beige powder. Since this product finds its greatest demand among dye and pigment manufacturers, we set tight controls on moisture, particle size, and sodium content. Most material leaves our plant with moisture below 0.5%, and sodium measured within a tuned range, verified by both titration and ICP-OES spectroscopy. Keeping heavy metals below strict thresholds means partnering with raw material suppliers willing to certify trace contaminants consistently. In production, we employ closed-loop systems for acid addition and neutralization, using stainless steel vessels and double-sealed pumps to prevent any air or water contamination.
Chemically, the product’s backbone—a chlorinated aminophenol structure linked to a sulfonic acid group, neutralized as its sodium salt—creates strong water solubility and solution stability. These characteristics are essential in downstream applications, especially for dyestuff manufacturing that demands reliable wetting and binding on fibers.
Years of customer collaboration make it clear: the margin for error in dye intermediate quality is razor thin. Every deviation risks affecting color shade, batch yield, and customer reputation. In one instance, mismatched sodium balance led to precipitation during a client's dye coupling process, causing a full day’s production loss. That experience reinforced our focus on direct testing—every outgoing lot passes solubility, colorimetric, and HPLC purity checks.
On the factory floor, stable product flows boost confidence. Laboratory staff rely on consistent chemical reactivity in their reactions. Tech teams expect the same color shade and fastness in textile workups, without repeated adjustments. From a practical point of view, our experience confirms that the most reliable material always comes down to upstream purification and closed-system handling. These steps cost more, but they cut headaches for end users, preventing downtime and expensive batch rework.
The most common use for 4-Chloro-2-Aminophenol-5-Sulfonic Acid Sodium Salt falls in azo dye manufacture. Our product’s reactivity and solubility deliver sharp results in color coupling reactions, producing strong, vivid tones with less variation from batch to batch. The dye sector rarely forgives inconsistent intermediates—poorly controlled substitution patterns, trace metals, or residual monoamines can shift shades or cause fading. Our team has helped customers troubleshoot processes when rival materials ran into such problems. While big dye houses run automated systems, smaller operators often depend on human eyes and hands—making batch-to-batch predictability even more valued.
There’s a secondary niche in ink and specialty colorant manufacturing. In several client collaborations, our sodium salt product replaced traditional intermediates to create more stable dispersions. Reliable water solubility meant less sediment during storage, important for high-speed inkjet and digital printing. A few research customers use this material for synthetic studies into advanced pharmaceuticals, exploiting the aminophenol moiety as a step in complex multi-ring or heterocyclic compound syntheses.
From the people on our plant floor to technical sales staff out in the field, one thing comes up most: not every 4-Chloro-2-Aminophenol-5-Sulfonic Acid Sodium Salt is cut from the same cloth. Low-cost products made using bulk acid chlorination or insufficient washing almost always show higher salt residue, inconsistent color, and off-odors. Our own small-scale competitors have sold material made with more lenient purification steps. Customers switching to our version found fewer blockages during dye coupling, smoother slurries in formulation, and steadier color results.
Most intermediates in this chemical family share general attributes—water solubility, primary amine reactivity, sulfonate stability—yet product differences quickly surface due to manufacturing controls. Morphological traits, particle size, and impurity profiles diverge across sources. For labs working on new molecules, those “invisible” differences—trace colored impurities, sodium chloride byproducts, low-level residual acids—can turn an otherwise fine process into a frustrating dead end. Years of feedback and process improvement sharpened our controls, particularly at pH neutralization, which ensures batch reproducibility.
Producing this sodium salt isn’t about just following a recipe. Variability in raw chlorinated phenol, uneven sulfonation conditions, or old neutralizing agents may leak into the final product. Over a decade in this business, we’ve faced unexpected setbacks. For example, seasonal humidity spikes caused by monsoon months sometimes increased cake moisture in our filter driers. By investing in upgraded vacuum systems and inline moisture detectors, we brought water content back on target. Other times, subtle shifts in sodium hydroxide concentration caused pH drift during neutralization, changing not only the yield but solubility and physical look.
Plant operators remember the practical tricks that matter: precise acid-to-amine ratios, slow cooling during precipitation, and strict exclusion of dissolved iron. We learned early not to take “commodity” intermediates at face value. Most issues occurred in unmonitored storage silos or during hand neutralization. Automating the neutralization stage reduced out-of-spec batches by more than half over two years. That kind of improvement saved labor and built direct trust with customers who run lean inventories and short delivery schedules.
For many of our clients, changing an intermediate source brings risks and challenges. Misalignments often come from subtle quality drifts—hard to spot on a spec sheet but obvious on a large scale. People working production lines notice when new lots behave differently: faster settling times, unexpected lumps, slower redissolving, or unpleasant odors. Early in our market experience, a few clients switched to budget materials, hoping to improve margins. Several returned quickly, having experienced more downtime, more in-process cleaning, and ultimately higher costs.
The lesson from these cases is simple: a slightly higher price, supported by hands-on manufacturing control and real communication, pays back in less worry and better throughput. End users require fewer process tweaks and experience fewer failed batches—practical benefits often valued more than a low purchase price.
Our team benchmarks this sodium salt intermediate against other similar sulfonated aminophenol salts, such as 4-Amino-2-Chlorophenol-5-Sulfonic Acid Sodium Salt and its unsubstituted analogues. The specific chlorine placement in our product increases resistance to hydrolysis and improves long-term storage stability once dried. While other products can offer similar primary amine reactivity, they sometimes show greater tendency to oxidize during storage or develop unwanted byproduct colors, particularly in high-temperature applications.
Feedback from colorant formulators suggests that, compared to the parent acid form, our sodium salt delivers increased ease of handling—less dusting, smoother transfer, fewer process inconsistencies in liquid-phase workups. Compared to potassium or lithium analogues, the sodium salt remains more economical not only on pricing but downstream compatibility in most dye baths and industrial reactors. Where high-purity syntheses are required, we direct more resources to extra washing and controlled crystallization, delivering higher purity product intended for more sensitive uses.
In daily practice, quality management comes down to a loop of testing, feedback, and rapid adjustments. We deploy several analytical techniques on every batch—HPLC for organic purity, titration for sulfonic content, flame photometry for sodium, and spot-check heavy metals by ICP-MS. We track every test in real time, feeding direct data into our process historian. Every failed lot triggers a rapid response, from plant manager to QC analyst, retracing raw material lots and process conditions. Nothing frustrates our batch operators like repeated error, so re-training and process fine-tuning are routine, supported by monthly reviews.
One batch, affected by upstream variability in chlorinated phenol, failed a colorimetric test. By tracing back to the supplier, reviewing delivery logs and sampling storage tanks, we determined a minor but critical solvent impurity had slipped through. Strengthening our supplier verification checklists and adding incoming solvent screening prevented repeat issues, keeping future batches on specification.
Chemicals like 4-Chloro-2-Aminophenol-5-Sulfonic Acid Sodium Salt don’t flow directly from manufacturing to end use. We supply most product in fiber drums lined with antistatic liners, minimizing risk of outside contamination and facilitating safe handling. Our logistics teams partner with certified handlers—trained in chemical storage and spill response—to ensure compliant shipping even in challenging climates.
We maintain traceability on every lot, from base chemicals to finished goods, with overlapping records covering batch processes, cleaning protocols, and raw materials origin. Transparency isn’t just a slogan—it supports real-world claims of reliability. Customers running audits access original manufacturing logs and see everything from temperature logs to analytical reports.
Operating in compliance with industry safety and environmental standards is non-negotiable. Workers wear specialized protective gear, and outgoing shipments go through routine packaging checks. Excess byproducts and waste are neutralized, ensuring minimal discharge into the environment. Customer feedback loops back into our documentation, letting us improve employee safety training and packaging method by method.
Customers working with our sodium salt in dye syntheses often share frustrations learned the hard way: not all batches from every supplier dissolve at the same speed, nor do they always carry the same degree of clarity or shade stability. If a batch sits exposed to air for too long or gets contaminated with alkaline dust, solution color can shift slightly. Lab teams who measure solution absorbance see the difference between freshly opened, well-sealed product and drums left open on damp days.
For new projects, early pilot batches reveal most of the lurking problems. Color yield, solution clarity, foam stability, and even subtle odor all tie back to upstream controls. Long-haul shipping or exposure to high humidity gives us more feedback on packaging and preservative tweaks. We've found that customers who rotate inventory quickly and keep drums sealed see the fewest usability complaints. Open communication—direct line access to technical support—gets questions answered and prevents misunderstandings.
No manufacturing process is free of obstacles. Over the years, we’ve had to address scale-up issues, customer skepticism, and end use restrictions. Where customers faced stubborn dye precipitation or faster-than-expected solution darkening, we supported them with direct lab data and, when necessary, custom batches with adjusted morphologies. For companies dealing with downstream clogging or color instability, our team recommended in-line filtration adjustments and storage upgrades—sometimes even supplying test drums of higher-purity product to tune new plant lines.
Waste treatment from manufacturing generates significant concern for many players in the specialty chemicals space. We’ve invested in on-site neutralization and third-party monitored incineration to minimize discharge impact. Our technical staff works with local authorities and clients to support clear documentation and provide chemical use and disposal advice.
Looking forward, our plans include new grades of this sodium salt aimed at even tighter purity windows, serving advanced electronics, optics, and life sciences. Continuous improvement circles back to direct industry feedback—not just standards on paper, but hands-on experience and open troubleshooting with users.
To those who depend on 4-Chloro-2-Aminophenol-5-Sulfonic Acid Sodium Salt in daily production, the true value isn’t just in the chemical formula. Trust gets built from every delivered drum that meets promised performance, every technical question answered with honest data, every quality hiccup solved fast. Manufacturing this product year after year has made us careful listeners and quick responders.
Personal relationships matter. Customers with new process requirements or unique regulatory questions know they’ll reach an engineer or chemist with real factory experience. Responsive partnerships and shared troubleshooting build long-term confidence. Our longest relationships started with basic sample requests and grew into continuous annual partnerships, driven by consistent product, real support, and a willingness to tackle changing requirements.
The field of specialty chemicals, especially in dyes and pigments, keeps evolving with environmental limits, supply-chain stress, and performance demands. Staying ahead means investing in both new equipment and training, new analytical protocols and support systems. Our own process engineers, who develop and optimize each synthesis on the shop floor, aren’t separated from the support staff helping clients run their own synthesis lines.
Lab research only matters when it translates into production reliability. Research teams keep exploring improvements, from new crystallization techniques to cutting-edge impurity monitoring. Real results come not from flashy sales sheets, but from granular attention to every test, record, and client request. In the end, we see ourselves measured not by quantity shipped but by how few issues arise after delivery and how well manufacturing performance holds up over time.
Producing 4-Chloro-2-Aminophenol-5-Sulfonic Acid Sodium Salt to modern industrial standards presents a continuous challenge. The skills and vigilance of every operator, technician, and quality manager shape each batch more than any written guideline. Batch tracking, root cause analysis, and proactive communication keep our offerings robust, even as marketplace needs shift and environmental rules tighten.
We value every real-world insight and encourage open discussion of application hurdles and performance questions. Keeping lines open between manufacturing and customer operation delivers not only better product but richer relationships—something that a datasheet cannot replace.
Working directly with this compound has shown us that attention to detail, full transparency, and a direct line to each user’s concerns create meaningful value for everyone in the supply chain. That is the real work behind every bag and drum of 4-Chloro-2-Aminophenol-5-Sulfonic Acid Sodium Salt we send into the world.
