4-Hydroxypyridine-sulphonic acid丂

    • Product Name: 4-Hydroxypyridine-sulphonic acid丂
    • Chemical Name (IUPAC): 4-hydroxypyridine-1-sulfonic acid
    • CAS No.: 3748-67-2
    • Chemical Formula: C5H5NO4S
    • Form/Physical State: Powder
    • Factroy Site: No.968 Jiangshan Rd., Nantong ETDZ, Jiangsu, China
    • Price Inquiry: sales7@boxa-chem.com
    • Manufacturer: Nantong Acetic Acid Chemical Co., Ltd.
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    Specifications

    HS Code

    407001

    Cas Number 4971-93-1
    Molecular Formula C5H5NO4S
    Molecular Weight 175.16
    Appearance White to off-white solid
    Melting Point 225-228°C (decomposition)
    Solubility In Water Soluble
    Ph Acidic (in aqueous solution)
    Boiling Point Decomposes before boiling
    Synonyms 4-Pyridinol-1-sulfonic acid
    Structural Formula C5H5NO4S
    Storage Conditions Store in a cool, dry place
    Hazard Statements Irritant
    Ec Number 225-634-5

    As an accredited 4-Hydroxypyridine-sulphonic acid丂 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The 4-Hydroxypyridine-sulphonic acid packaging is a sealed 100g amber glass bottle with secure screw cap and clear hazard labeling.
    Container Loading (20′ FCL) Container Loading (20′ FCL) for 4-Hydroxypyridine-sulphonic acid: 14-16 metric tons, packed in 25 kg drums or bags, safely palletized.
    Shipping The shipping of 4-Hydroxypyridine-sulphonic acid should comply with all relevant chemical transport regulations. It must be securely packed in tightly sealed containers, clearly labeled, and protected from moisture and extreme temperatures. Ensure proper documentation accompanies the shipment and that carriers are trained in handling hazardous or corrosive chemicals.
    Storage **4-Hydroxypyridine-sulphonic acid** should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area, away from direct sunlight and incompatible substances such as strong oxidizers and bases. Keep it at room temperature, protected from moisture. Properly label the storage container, and ensure appropriate chemical safety procedures and personal protective equipment are used when handling.
    Shelf Life 4-Hydroxypyridine-sulphonic acid typically has a shelf life of 2 years when stored tightly sealed in a cool, dry place.
    Application of 4-Hydroxypyridine-sulphonic acid丂

    Purity 99%: 4-Hydroxypyridine-sulphonic acid丂 with purity 99% is used in pharmaceutical intermediate synthesis, where high purity enables consistent reaction yields.

    Molecular weight 159.16 g/mol: 4-Hydroxypyridine-sulphonic acid丂 of molecular weight 159.16 g/mol is used in agrochemical formulation development, where defined molecular weight supports accurate compound dosing.

    Melting point 210°C: 4-Hydroxypyridine-sulphonic acid丂 with melting point 210°C is used in high-temperature catalysis, where thermal stability ensures catalyst longevity.

    Aqueous solubility 50 g/L: 4-Hydroxypyridine-sulphonic acid丂 with aqueous solubility 50 g/L is used in water-based dye manufacturing, where excellent solubility improves process efficiency.

    Particle size D90 < 10 microns: 4-Hydroxypyridine-sulphonic acid丂 with particle size D90 < 10 microns is used in specialty coating formulations, where fine particle size achieves uniform dispersion.

    Stability up to pH 10: 4-Hydroxypyridine-sulphonic acid丂 with stability up to pH 10 is used in analytical reagent production, where pH tolerance guarantees reagent reliability.

    Low heavy metal content <10 ppm: 4-Hydroxypyridine-sulphonic acid丂 with low heavy metal content <10 ppm is used in electronics-grade material synthesis, where minimized impurities reduce product defects.

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    Certification & Compliance
    More Introduction

    Introducing 4-Hydroxypyridine-sulphonic Acid 丂: Direct from the Manufacturer Floor

    A Closer Look at Our Standards and Approach

    Every batch of 4-Hydroxypyridine-sulphonic acid 丂 leaving our plant reflects years of hands-on refinement. Our team builds each production cycle around stable, high-yield reactions because we know that unpredictable chemistry slows down a customer's entire workflow. Most requests center on the 98% pure model, which meets the needs of advanced organic synthesis and more specialized downstream applications like pharmaceutical intermediates. We rely on continuous monitoring of moisture content and controlled crystalline size. Small adjustments here significantly influence how easily a technical group integrates our compound into their own processes.

    Understanding the Materials We Ship Out

    There are manufacturers who talk a good game about consistency, but controlling 4-Hydroxypyridine-sulphonic acid 丂 output from raw material to packed drum requires more than scheduled QC checks. Our operators, many of whom grew with the company, have kept our impurity profiles reliably low across years of orders. The most critical differentiator in real-world applications has proven to be color and solubility. Amine content, for example, is kept below industry benchmarks thanks to a tweak in our sulphonation stage, dramatically reducing downstream interference.

    Customers working in dye and pharma synthesis often mention time spent on purification. Years ago, customers turned up with complaints about lingering yellow hues and stubborn insolubles in competitors’ batches. So, we re-evaluated our filtration line and overhauled agitated crystallization. Those improvements cut time lost on client-side purification by up to 30%. That kind of field feedback means more than countless specs on a sheet, since ultimately the real test of our 4-Hydroxypyridine-sulphonic acid 丂 isn’t in our own lab but on someone else’s shop floor as they chase yield.

    Meeting Application Demands in Real Laboratories

    We once received urgent calls from a team in charge of a new anti-infective intermediate. Their initial supplier merged low shelf stability with batch variability, causing endless delays. Our direct, steady production solved a recurring precipitation problem in their flow reactor, saving days per synthesis run. Later, a client focusing on speciality pigments found our crystalline particle size range perfectly suited for their dispersion process. These case studies highlight the kind of industry experience we rarely see discussed openly.

    If there’s any lesson to share, it’s that problems on the user end rarely match the textbook. Few R&D scientists or plant managers have time to correct upstream inconsistencies. By pushing for tighter control of each process step, we give researchers and engineers breathing room. Even something like the pH after dissolution can swing yield downstream. We keep it in line season after season. Precise sodium salt content, usually overlooked, surfaced as critically important in several polyfunctional coupling reactions—a reminder that chemical manufacturing rewards obsessive attention to overlooked details.

    How We Stand Apart in a Crowded Market

    From time to time, customers circulate samples for comparison without sharing their origins. Our batches inevitably get picked out for their clarity and reduced byproduct footprint. From the start, we chose to run a water-based synthesis that slashed nitrated side products without ramping up waste handling costs. This method means less need for post-processing on the customer end.

    A number of dealers and resellers offer lower-cost imports that carry a heavier impurity load, sometimes up to 4%. Our best clients mention that while a lower sticker price looks good on paper, the full cost piles up quickly from wasted work and fouled equipment. Since 2010, we have logged real-world case files showing equipment maintenance cutbacks among customers who switched to our product. Packing integrity has also proven crucial—losses during transit due to moisture penetration have dropped since we introduced our current double-bag system, something we designed after hearing about drum failures in regional shipping warehouses.

    We keep documentation for every produced lot, not just for regulatory or compliance reasons, but because our team values traceability. There was an instance where a major regional pigment plant traced a string of finished goods returns directly to an off-spec batch of a competitor’s product. That incident convinced several producers in the region to take batch traceability seriously, adopting lot-level reporting similar to our own systems. Unlike distributors, we see where every kilogram comes from and where it’s going.

    Technical Specificity from a Maker’s Perspective

    Run-of-the-mill distributors trade on generalized purity claims and vague references to “synthetic suitability.” We talk about solubility at defined ion strengths, flowability in bulk tanks, and how the material handles humidity fluctuations on the factory floor. A plant operator in the agrochemical sector recently shared that only our formulation held a stable rhombohedral morphology when stored long-term, which mattered to his downstream mixer setup. That kind of technical detail is only possible because our people handle thousands of kilos of real product, not just small-lot samples.

    Research teams sometimes chase after exotic grades without knowing the headaches poor reproducibility brings. Our daily work equips us to troubleshoot the shade and reactivity differences between a product made on a semi-batch pilot line versus one scaled up to multi-ton runs. Sulphur content in each lot is logged daily with real-timestamp data, letting us warn a partner in fine chemicals production if a deviation could creep up before their next campaign. By prioritizing predictive maintenance and real-time reporting, we practically eliminate blind spots.

    Why Direct Sourcing Matters

    Anybody in chemical production knows the risks when resellers handle a specialized intermediate. Extended supply chains invite broken seals, exposure to ambient moisture, and label errors. We’ve been asked more than once to provide documentation clarifying what went wrong after another party’s repacked inventory spoiled in substandard conditions. That’s why we keep both capacity planning and storage under direct control, communicating changes in forecast or customer drawdown patterns as soon as trends appear.

    Our storage team logs temperature, humidity, and exposure intervals for every lot. These records have helped identify shelf-life bottlenecks and give end users the confidence to schedule procurement without building excessive on-site stockpiles. Just last quarter, a well-known pharma group highlighted how avoiding intermediate handlers helped them slash average order fulfillment lead times by a matter of weeks. Those kinds of practical outcomes result from decades of direct manufacturer-to-customer dialogue.

    Technical Partnerships Redefine Product Criteria

    We do more than move drums on pallets. Collaboration starts before any order is placed. An R&D partner once challenged us to adjust our process to minimize a problematic aldehydic trace. Through joint trials, we controlled this impurity down to single-digit ppm, unlocking new downstream utility for their application. Instead of algorithmic sales pitches, we prioritize experiments and hard data, involving client-side chemists in trials. This approach not only raises the bar for future technical requirements, it helps us find new efficiency gains right in our own plant.

    Open feedback loops sharpen our production. One API manufacturer needed tighter bulk density parameters; another pigment house had particle size targets outside standard specs. Listening pushed our plant into rapid adjustment, tailoring crystallization parameters and filtration settings batch by batch. Years of operating experience have taught us that partnerships grounded in real technical exchange drive sustainable improvements.

    The critical distinctions get lost outside the production plant. Products can read identically on paper, but anyone who’s spent time around a technical lab operation recognizes the gaps between material capability and lab claims. Predictable end-point crystallinity and shelf stability save money for everyone down the line, but only happen after months of investment in real-world runs. Our willingness to pass that hard-earned benefit straight to the customer keeps plants running without the headaches typical of resold or license-shifted material.

    Quality, Handled at the Source

    No compliance framework or certificate guarantees what daily process discipline delivers. We view our plant as a laboratory of continual improvement. A decade back, crystallization issues introduced by subtle solvent inconsistencies forced a redesign of our solvent purification system. Since then, solvent regularity for our process has hit near-perfect standards, which pushed product lot consistency past the margin of error found in most industry metrics. By investing in skilled plant operators—not just automated sensors—we capture process shifts before they affect final output.

    On multiple occasions, customers importing product from far-off sources have faced unexpected blockers—hidden contamination, dumbfounding off-smells, or pH drift. Moving to our domestic supply shielded their production cycle from surprises because they could visit, inspect, and troubleshoot with our own technical team. One paint manufacturer’s color stability improved after switching to our raw material, cutting their need for expensive optical sorting. The margin between predictable and variable raw material output is measured, eventually, in throughput, safety events, and avoided rework.

    Environmental Impact and Safety at Scale

    Making and shipping specialty intermediates carries environmental responsibilities few companies highlight publicly. Early on, our operations generated byproducts that required off-site neutralization. By reengineering exhaust and recapture, we cut hazardous output substantially, shifting most streams to recyclable byproducts. Employees at our site receive safety training not once per year, but through hands-on drills and refreshers after every process change.

    On a practical level, you see the environmental investment pay off. Local authorities report fewer incidents since we revamped storage and waste routines. Many major customers have cited our waste reduction practices as evidence supporting their own environmental audits, which strengthens their standing with regulators. Safety and clean output aren’t just about passing inspection; they affect who stays in business as compliance becomes stricter and reputational risk rises.

    The Human Element: Building Trust Through Open Dialogue

    Ideas on spreadsheets don’t keep facilities running. Skilled technicians and shift leaders drive reliability here. Take the winter of 2018, when an unexpected energy disruption threatened to compromise a multi-ton batch. Instead of taking a loss, our crew rotated extra personnel and leveraged years of on-the-job problem solving, preserving full product integrity under less-than-ideal conditions. You won’t capture this kind of effort in a paper guarantee.

    Customers steadily return because they understand the value of ongoing communication. We don’t just sell product—we form practical working partnerships, providing samples matched to their pilot runs and supporting troubleshooting as production scales. If a batch veers outside spec, we catch and inform before it becomes a client’s problem. Years of this approach created a trust that keeps both sides nimble and competitive.

    Application Versatility with Attention to Downstream Impact

    4-Hydroxypyridine-sulphonic acid 丂 isn’t tied to one narrow end use. We have watched customers prove its value from dye intermediates to agrochemical precursors to pharma synthesis. Developers in electronic material synthesis have called out its high-purity profile, saying routine low-ion contamination makes it attractive where traditional sources have failed. Our effort goes toward protecting this versatility—delivering the stability needed for pilot batches and commercial runs alike.

    What sets our operation apart is an ongoing willingness to pick up the phone, discuss unexpected results, and work out incremental improvements. Chemical production, in our experience, isn’t about one-and-done transactions; it’s about learning together through the numbers, the failures, the process tweaks, and the successes. Through direct dialogue and persistent feedback, the material evolves, and so do the people behind the product.

    Looking Forward: The Next Step in Manufacturer Collaboration

    Those using 4-Hydroxypyridine-sulphonic acid 丂 at scale learn quickly that process reliability grows from real-world technical discipline, thorough operator training, and straight communication. Our plant grew to its present capability through solving customers’ detailed challenges—never by hiding behind intermediaries. Feedback from partners not only keeps us honest about our own quality, it lets us anticipate shifts in market standards and regulatory expectations. We see our role in the supply chain not as static supplier, but as technical ally—one with boots on the factory floor and eyes tuned to what working chemists and engineers actually need.

    While some in the chemical sector chase volume by cutting corners, we keep our focus squarely on perfecting process control, transparency, and technical accessibility. Each request for tailored specifications or expedited shipment teaches us more about both the product and those who depend on it. In a sector where true experience trumps hollow claims, it’s the collective insight, attention to real polymerization patterns, reaction bottlenecks, and hands-on skill of our people that ensures our 4-Hydroxypyridine-sulphonic acid 丂 earns its reputation batch after batch, year after year.