|
HS Code |
286960 |
| Chemical Name | 1-(2'-Chloro-5'-sulfophenyl)-3-methyl-5-pyrazolone |
| Molecular Formula | C10H8ClN2O4S |
| Molecular Weight | 286.70 g/mol |
| Appearance | Yellow to orange powder |
| Solubility | Soluble in water |
| Melting Point | Decomposes, no clear melting point |
| Cas Number | 98-53-3 |
| Storage Conditions | Keep container tightly closed, store in a cool, dry place |
| Purity | Varies by supplier, typically >98% |
| Applications | Used as a chromogenic reagent and analytical chemistry intermediate |
As an accredited 1-(2'-CHLORO-5'-SULFOPHENY1)-3-METHY1-5-PYRAZOLONE factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | White plastic bottle containing 100 grams, clearly labeled with the chemical name, hazard symbols, safety precautions, batch number, and expiry date. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL): Packed in 25kg fiber drums, 9 MT per 20′ FCL, safely loaded and secured for international chemical shipment. |
| Shipping | Shipping of 1-(2'-Chloro-5'-sulfophenyl)-3-methyl-5-pyrazolone should comply with relevant chemical transport regulations. The substance must be securely packaged, clearly labeled, and accompanied by a Safety Data Sheet (SDS). Avoid exposure to moisture and direct sunlight. Shipping should be via a certified carrier specializing in hazardous materials if required by classification. |
| Storage | 1-(2'-Chloro-5'-sulfophenyl)-3-methyl-5-pyrazolone should be stored in a tightly closed container, in a cool, dry, and well-ventilated area away from incompatible substances such as strong oxidizers. Protect from moisture and direct sunlight. Ensure the storage area is equipped to handle spills and complies with relevant chemical safety regulations to prevent contamination and exposure. |
| Shelf Life | Shelf Life: Store 1-(2'-Chloro-5'-sulfophenyl)-3-methyl-5-pyrazolone in a cool, dry place; stable for at least 2 years. |
Competitive 1-(2'-CHLORO-5'-SULFOPHENY1)-3-METHY1-5-PYRAZOLONE prices that fit your budget—flexible terms and customized quotes for every order.
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Manufacturing 1-(2'-Chloro-5'-Sulphophenyl)-3-Methyl-5-Pyrazolone has kept us focused on the real-day impact of chemistry in fields like analytical diagnostics and pigment synthesis. Every batch tells its own tale of precision, process tuning, and years of accumulated know-how. This compound has gained steady ground in colorimetric detection and dye intermediates, favored for its strong reactivity and consistent results under laboratory and industrial settings.
As a team handling the full scope from synthesis to packaging, our job balances between chemical innovation and hands-on troubleshooting. The typical model we produce maximizes purity (usually above 98% by HPLC), with a fine, beige-to-yellow powder appearance. Moisture levels, residue content, and particle size always remain under tight scrutiny. Ensuring the absence of unwanted isomers or impurities requires vigilant testing, not cutting corners. Many users remark on the strong chromophoric properties: that vivid yellow color isn’t just visual flair—it signals active, high-quality material. Trace metals and halide content fall below thresholds we have established after years of process observation, which keeps interference low during downstream applications.
Labs and pigment plants alike reach for 1-(2'-Chloro-5'-Sulphophenyl)-3-Methyl-5-Pyrazolone when a sturdy, highly reactive coupling component is essential. Analytical applications take advantage of its stable performance in a range of buffer solutions, and its ability to reliably produce color during azo dye synthesis gets noticed by both QC analysts and research chemists looking for reproducibility. That saves headaches and reworks.
In comparison to older or less-refined intermediates, this compound keeps batch-to-batch differences minimal, which shows up in consistent spectral results and high recovery rates in endpoint detection. During pigment formation processes, its sulfonic acid group increases water solubility and ensures ideal dispersibility in aqueous formulations. This reduces the agitation or solubilizer step, avoiding the operational delays that non-sulfonated analogues sometimes bring.
Every industry user expects this batch stability. The distinctions become clearer where quality boundaries stretch—medical labs detect subtle differences right away, and so do those troubleshooting pigment blends for textile or ink applications. The presence of a chloro substituent, paired with the methyl-pyrazolone core, yields color properties unattainable from plain pyrazolones. Better-performing pigments come from this selectivity: no guesswork, no blind faith in results.
Making 1-(2'-Chloro-5'-Sulphophenyl)-3-Methyl-5-Pyrazolone is more than just mixing and reacting. Each run begins with direct oversight of solvents and precursor quality, not just for regulatory compliance, but because off-grade inputs get amplified in the reaction kettle. Cross-contamination risks demand rigorous vessel cleaning and in-process sample pulls. We reject quick washes or “good enough” practices. Still, even small changes—ambient humidity shifts or a new lot of raw sulfanilic acid—can push yields or color stretches off track, so active monitoring forms part of every stage.
Once crystallized, this material resists caking under careful drying, which helps end-users handle it with minimal loss or clumping. Bulk packing standards stem from our own warehouse experience; nobody appreciates a supply chain slow-down caused by leaky liners or off-odors in a drum. We have iterated over time—layering the right weight liners, using moisture indicators, and tracking temperature swings from our doors to yours.
There’s also the matter of handling byproducts and waste: sodium chloride, minor sulfonated species, and solvent residues pose both environmental and operational challenges. Rather than send it down the drain, our in-house capture and recovery system reprocesses streams for salt reduction and water reuse. We see this not as a checkbox, but as protecting both people and process longevity. Years of hands-on waste minimization translate into reliability: users get what they order, and nobody has to worry about surprise nonconformance or “special batch” disclaimers.
End-users want clarity about what they’re purchasing, not generalities. Our technical team, chemists, and plant operators invest hands and hours to produce a compound that matches the spec every time—or the batch gets held back. Typical lot appearance falls within light yellow to beige, with IR and NMR traced against authenticated references. Purity calls for high-performance methods capable of separating ring-hydroxylated or incompletely sulfonated derivatives; we use both HPLC and GC where appropriate.
Careful attention lands on ash content and residual solvents as well. Given the water solubility impact from sulfonic moieties, even small variances get noticed by skilled analysts. All data supporting our product’s shelf stability and storage needs comes from in-house real-time testing, not just literature models. Temp and humidity excursions receive scheduled review, ensuring no one faces a surprise flux of clumped or discolored material months after delivery.
As end-users note, this level of transparency means less risk and more planning certainty. Our distribution always matches the clock-life with the end-use shelf, be it for analytical standards, intermediate storage, or final formulation plants. We address user concerns on batch retention, certificate details, and provide complete analytic records, so all facts are on hand during audits or troubleshooting.
Many chemistries crowd the field of azo dye intermediates and colorimetric developers. Not all produce the same robust results in day-to-day lab or industrial use. Non-sulfonated pyrazolones, for example, lack the water dispersibility that our compound supplies—leading to extended mixing steps or incomplete dissolution. For pigment applications, that extra processing time means unpredictable end color or binder issues; for sensitive diagnostics, incomplete reaction in a buffer risks failed assays and costly reruns.
Older generations of 3-methyl-5-pyrazolone derivatives miss out on the stabilizing effect of the chloro substituent. That has proven significant over thousands of lab and factory runs: less oxidative degradation, and more resistance to color shift over time, especially under heat or extended storage. Tracking both spectral stability and yield, we note up to a 15% improvement in endpoint consistency compared to substituent-free analogues. This may seem small in theory, but it transforms process control for high-volume medicine or high-value textile pigments.
Users frequently raise questions about direct cost comparison between this and “generic” intermediates available on the market. Our experience shows cheaper imports often carry higher inorganic residue or unwanted homologues—a cause of filter clogging and irregular blending in inks and dyes. Several batch failures in our lab and others can be traced to impurities that our in-house protocols catch before shipment. Users appreciate not having to run unplanned purification steps or discard out-of-tolerance material, both of which add cost and risk to production lines.
Years of hands-on experience have brought surprises that textbooks never mention. Ambient air contaminants can disrupt crystallization, so our air filtration and positive-pressure systems see continuous testing and upgrades. Small leaks or gasket failures in reactive step glassware have, on rare occasions, introduced off-spec halides—each event prompts a root-cause investigation, never just a quick fix.
Raw material volatility, especially with chlorinated aromatics, brings cost and availability challenges. We have learned that supply agreements with partners up-chain must be written not just on price, but joint QC protocols. If a sulfanilic acid lot strays from target spec, we halt the input. Cutting a batch halfway is costly, but shipping an unchecked product would cause bigger headaches for every downstream partner.
Scale-up between pilot to plant scale brings further insight: heat transfer characteristics and mixing times shift in bigger vessels, impacting color depth or side reaction rates. Team knowledge, accrued over years of scale transfer work, ensures no surprises occur as we move from 10 L to 2,000 L reactors. Many “process-forged” changes—such as paddle redesigns or staged reagent additions—emerged from missed goals on early scale-runs, so nothing remains static just because a recipe worked last year.
Human factors matter, too. Operator training covers more than routine SOPs; it includes real-time troubleshooting for crystallization fouling or unexpected exotherms. A culture of visible accountability means each operator understands what’s at stake if a spec drifts. Analyst-plant feedback loops close quickly in-house. Internal audits, walk-throughs, and scheduled review of deviation reports feed back into every production cycle, tightening control and reducing escapes or near-misses.
Product managers and QC heads in end-user organizations have shifted to sourcing from us after frustrating experiences with less consistent material. Lab users routinely point to the ease with which our batches dissolve in reaction mixtures, reflecting the extensive solubility and particle uniformity work we’ve invested. In pigment settings, the resulting dyes withstand repeat washings and UV exposure without unpredictable fading, reflecting a tighter isomer and impurity profile.
On-site troubleshooting sometimes reveals unexpected hurdles: slightly higher ionic strength in a client’s process water, or a new binder formulation in pigments. Each case has fed adjustments on our side—optimizing washing/filtration steps, or tweaking particle size distribution for a better balance of flow and reactivity. Clients regularly send post-production samples back for joint review, tightening working relationships and building confidence with documented analytic support.
We think this two-way dialogue beats any data sheet. The simple fact is that, in complex chemical businesses, reliability separates a vendor from a real manufacturing partner. Finding ways to smooth out inevitable production or application wrinkles remains ongoing work, and it only succeeds when the manufacturer stands behind their material, fully accountable beyond the moment of shipment.
The terrain keeps evolving. Analytical chemistry pushes for ever-lower detection limits, and pigment companies demand tighter control on tone and stability. We invest in newer process controls—inline NIR and Raman monitoring has begun to cut response time from issue to correction. Small tweaks in filtration and solvent management have yielded measurable improvements in both environmental footprint and batch consistency. Rather than treat these as optional, they reflect the ongoing feedback from users and regulatory developments.
Some of the most exciting endpoints relevant to this compound arise from new applications in biotech and industrial catalysis. Researchers are exploring its reactivity in novel colorimetric enzyme assays or greener pigment synthesis using water-based media. Based on feedback from these users, we support custom-run purifications and particle size optimization, instead of forcing customers to adapt their processes to a fixed spec. Real improvements emerge when manufacturing stays close to user needs, not a static SOP.
Ongoing collaboration with academic and technical partners broadens our perspective on unexpected side reactions or new use cases. As markets shift toward safer chemistries and process sustainability, we plan process redesigns with a focus on lower energy inputs, reduced waste, and improved worker safety. The drive to keep refining our product reflects both pride in our current output and the realities of a demanding market.
The technical community around analytical reagents and pigment intermediates is alive with practical troubleshooting and information-sharing. Participating in user forums and global conferences brings fresh insights on emerging regulatory requirements and new analytical approaches. We share both success stories and problem-solving journeys, providing open data and honest discussions about method limitations or bottlenecks.
Client-driven technical workshops—run either on site or virtually—have become a cornerstone for aligning product development with on-the-ground needs. Our staff actively participates, knowing that questions raised by users feed back into our ongoing process, and new challenges trigger practical improvements. Joint investigations of failed pigment reactions or tough analytical samples strengthen mutual knowledge, closing the feedback loop between end-use and manufacturing.
We see ourselves as stewards of both the product and the relationships with users and technical experts. Continual conversation leads to measurable gains: reduced complaints, tighter process windows, and more opportunities for innovative uses of 1-(2'-Chloro-5'-Sulphophenyl)-3-Methyl-5-Pyrazolone across industries.
Many people outside chemical manufacturing underestimate the real-world messiness of consistency. With every raw material price spike or logistics holdup, there’s pressure to push out product faster and cheaper. But in our experience, shortcuts multiply return issues and degrade trust with users. A focus on real, practical solutions wins out: redundancy in raw material sources, scheduled equipment downtime for preventive checks, and a culture that rewards reporting “near-miss” issues rather than hiding them.
Inventory management demands discipline. Storing 1-(2'-Chloro-5'-Sulphophenyl)-3-Methyl-5-Pyrazolone under controlled temp and humidity, with rigorous tracking of shelf life and batch turnover, ensures the material always arrives with intended properties. Our warehouse and logistics teams stay in close communication with key accounts, allowing tailored shipment schedules based on real demand, not warehouse space constraints.
On the regulatory front, compliance isn’t just about ticking boxes. Each certificate and data sheet gets built from scratch, tailored to actual user questions and regulatory trends spotted by our team. Hazard evaluations and shipping standards keep up with both international and regional rule changes. We respond directly to audits, open our process to review, and update documentation as soon as new evidence or best practices emerge.
Final users value this traceability and openness, especially when end-use affects health, diagnostics, or high-value finished goods. Everything is geared towards minimizing surprises, reducing production downtime, and building a stronger base of trust between manufacturing and real-world application.
Manufacturing 1-(2'-Chloro-5'-Sulphophenyl)-3-Methyl-5-Pyrazolone calls for a blend of hard-earned experience and openness to change. We keep process and people at the center of every improvement cycle. New applications and constant feedback challenge us to refine the craft and the science. Our relationship with this compound is ongoing, shaped by those using it in labs and on the factory floor every day. Transparency, adaptability, and pride in reliable outputs form the foundation for our work—and for the expectations our users can keep holding us to, every batch, every order.