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HS Code |
620723 |
| Product Name | Neuter Yellow C-2R |
| Chemical Class | Reactive dye |
| Color Index | Reactive Yellow 86 |
| Appearance | Yellow powder |
| Solubility | Soluble in water |
| Molecular Formula | C28H20ClN9Na4O16S5 |
| Molecular Weight | 1026.3 g/mol |
| Application | Textile dyeing (cotton, viscose) |
| Light Fastness | Good |
| Stability | Stable under normal conditions |
| Ph Range | 6-8 |
| Cas Number | 61951-85-7 |
As an accredited Neuter Yellow C-2R factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Neuter Yellow C-2R is packaged in a sturdy 25 kg woven plastic bag with clear labeling for safe identification and handling. |
| Shipping | Neuter Yellow C-2R is shipped in tightly sealed, chemical-resistant containers to prevent exposure to moisture and contamination. Packages are clearly labeled with hazard classifications and handled according to international transport regulations for chemicals. Ensure containers remain upright during transit, and store in cool, dry conditions away from incompatible substances. |
| Storage | Neuter Yellow C-2R should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and sources of ignition. The container must be tightly sealed and clearly labeled to prevent contamination and spills. Avoid exposure to moisture and incompatible substances. Store away from food, drink, and feed. Follow local regulations for chemical storage and handling. |
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Purity 98%: Neuter Yellow C-2R with a purity of 98% is used in textile dyeing processes, where it ensures consistent shade reproducibility and dye uptake. Molecular Weight 350 g/mol: Neuter Yellow C-2R with a molecular weight of 350 g/mol is used in plastics coloring, where it provides uniform dispersion and stable hue. Particle Size <5 µm: Neuter Yellow C-2R with a particle size less than 5 µm is used in inkjet ink formulations, where it delivers high resolution and smooth color distribution. Melting Point 168°C: Neuter Yellow C-2R with a melting point of 168°C is used in thermoplastic coloring, where it maintains color integrity during high-temperature processing. Stability Temperature 140°C: Neuter Yellow C-2R with a stability temperature of 140°C is used in latex paint manufacturing, where it ensures color stability under thermal curing. Solubility in Water 30 g/L: Neuter Yellow C-2R with a solubility in water of 30 g/L is used in aqueous-based coatings, where it achieves rapid dissolution and homogenous coloration. Lightfastness Grade 6: Neuter Yellow C-2R with a lightfastness grade of 6 is used in outdoor signage production, where it offers strong resistance to photodegradation and color fading. Viscosity Grade Low: Neuter Yellow C-2R with a low viscosity grade is used in flexographic printing inks, where it promotes superior flow and print definition. pH Stability Range 5–8: Neuter Yellow C-2R with a pH stability range of 5–8 is used in formulation of paper dyes, where it retains color strength across variable pH environments. Heat Resistance 120°C: Neuter Yellow C-2R with heat resistance up to 120°C is used in candle coloration, where it prevents discoloration during wax melting and molding. |
Competitive Neuter Yellow C-2R prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615365186327 or mail to admin@ascent-chem.com.
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Tel: +8615365186327
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For more than thirty years, our facility has produced dozens of synthetic colorants, sharing a front seat view of how textile and dye industries have evolved, transformed, or consolidated. Through all the changes, some products earn their reputation the hard way: by performing under pressure, inside the tanks and pipelines of real businesses. Neuter Yellow C-2R is one of those dyes. It started as a response to industry noise about unstable yellow shades and batch inconsistencies, but it matured into something customers ask for by name, often recognizing it by the bold, almost citrus tone it introduces to cellulosic fibers.
Producing Neuter Yellow C-2R means strict attention to detail in synthesis, filtration, drying, and blending. We manufacture it under code C-2R, monitoring every batch for color strength, fastness levels, and solubility. Experience in this particular AO7 derivative gives us an awareness of how minor chemistry tweaks can have outsized impact on what lands in the storage drums. Not every yellow dye with ‘neuter’ or ‘reactive’ in its title will behave the same way, and that difference gets magnified in large-scale production where reproducibility is non-negotiable.
Factories are flooded with options for yellow reactive dyes, yet not all blends stay consistent from one drum to the next. Our version of Neuter Yellow C-2R shows strong compatibility with cold pad-batch and exhaust dyeing, especially for cotton and viscose. Through hands-on trials, we’ve seen it deliver high exhaustion rates and true-to-reference shades, meaning workers downstream spend less time troubleshooting tone drift or shade migration during washing. Instead of unpredictable surges or drop-offs, C-2R keeps the line running with minimal intervention.
Most textile mills fight with yellow dye migration and off-shade bleeding during production shifts. With C-2R, these issues become rare. Its fixative component curtails excessive surface dyeing, which means after-wash tests regularly show cleaner color retention even in the presence of strong detergents or repeated agitation. These traits – fully visible after months of customer feedback and in-house sampling – make some buyers move their entire yellow dye volume to this model despite counteroffers from cheaper or newer competing blends.
Neuter Yellow C-2R comes in a finely milled powder, one that pours evenly, resists caking, and disperses rapidly in water. Our typical product leaves the dryer with less than 1% moisture, and particle size stays optimal for bulk powder handling systems. Customers rely on its purity and consistently replicated shade indices. Repeated colorimetric analysis across hundreds of samples confirms L*, a*, and b* values sticking closely to our declared batch standards.
With shades trending toward the bright, neutral yellow section of the color space, C-2R doesn’t skew orange or green under nonstandard lighting – a common headache in both fashion and industrial segments where color matching controls decision-making. The dye binds aggressively to cellulosic fibers during reactive formation, which we monitor by tracking unreacted dyestuff in spent liquors. After almost two decades running high-volume campaigns, we rarely hear complaints about dye float or uneven pickup, especially on substrates like ring-spun cotton or poplin blends.
Decisions in our plant weigh heavily on practical feedback. Factory partnerships tell us more than data sheets can. For instance, operators often point out where certain dyes slow line speed due to frequent stoppages or raise costs by increasing soaping cycles. With C-2R, repeat buyers highlight a drop in corrective treatments and smoother post-dye processing, thanks to the shade stability and thoroughness of dye fixation. Over years, even small operational savings aggregate to measurable improvements in plant efficiency.
Some colorants drop off in shade depth after only a few launderings – especially with home washing and basic detergent formulations. Neuter Yellow C-2R has passed rigorous tests for sunlight exposure and wet-fastness, maintaining color integrity well above established textile standards. Real-world feedback shows garments and home textiles keeping their visual appeal after months of repeated use and washing, minimizing callbacks and customer dissatisfaction.
Running a dye facility involves more than chemistry: it’s about putting robust, transparent testing systems in place. Every lot of C-2R runs through multiple checkpoints: spectrophotometric shade measurement, pH evaluation at critical steps, and solubility performance at different temperatures. Over the years, we invested in tighter filtration and refining hardware, removing even the smallest trace of insoluble byproducts or reaction dust that can interfere with downstream operations.
Our engineers have standardized the drying process to maintain low moisture and prevent agglomeration. Packaging happens directly after drying and sieving, protecting against airborne contaminants. From our experience, if a yellow dye picks up foreign particles or moisture, the shade shifts during storage and eventually causes speckling. By controlling every parameter on our production floor, we protect customers from uncontrolled variation, and we take genuine pride in the handful of customer returns we actually receive – a point that means more to our technical team than any sales milestone.
In the field, users often compare C-2R to other reactive yellow dyes focused on similar applications. Cheaper or imported products may advertise comparable color brightness, but routine color tests in our application labs spot key differences – from inconsistent solubility to non-uniform build-up across substrates. Distributors sometimes blend lots from different sources, introducing shade variability that can become obvious during scale-up. Mills running tightly controlled production lines tell us this lack of traceability produces unforeseen reworks or losses.
Unlike blends re-labeled for broader appeal or batches thinned to hit a price point, our C-2R maintains tight batch control. We source starting materials in uniform lots, verify reactivity, and keep transition metals or unwanted ions below critical levels. In house, our application chemists routinely run C-2R against international brands in controlled dyeing and washing protocols, putting side-by-side swatches through daylight, perspiration, and crocking exposure. The resulting data not only confirms expected fastness but spotlights where C-2R resists premature shade degradation better than less consistent alternatives.
Manufacturing synthetic dyes draws strong scrutiny from both regulators and industry buyers, especially in jurisdictions pushing for tighter environmental controls and consumer chemical safety. We keep updated on changes in regional chemical management lists, and regularly submit C-2R for third-party analysis. Our processes eliminate most byproducts before material enters final packaging. Over the past decade, increasingly strict discharge permits have pushed us to optimize water and solvent recovery, markedly lowering both emissions and waste.
Through process improvements—closed-loop reactions, better recovery units, and reduced energy load per batch—we’ve managed to cut plant emissions. Certified test results for C-2R consistently show absence of restricted amines and extremely low trace heavy metals, aligning with major market demands for safer textile products. These actions go beyond compliance—they’re rooted in direct customer requests for supply chain transparency and fewer chemical unknowns ending up in the finished textile.
Neuter Yellow C-2R adapts readily to both classic and cutting-edge dyeing processes. High-throughput textile plants value its performance under automated dosing, where metering pumps and solution tanks run continuously over long cycles. Smaller, specialty fabric finishers find its bright neutral hue plays well in blending unique shades demanded by sportswear and interior textiles. Larger customers running thousands of meters per shift depend on minimal downtime and predictable results, something our real-world experience confirms C-2R delivers without drama.
For smaller garment dyeing shops aiming at niche markets or runs of bespoke colors, C-2R’s solubility and rinsing profile make it useful in short-batch settings, letting operators achieve solid uptake on a range of cellulosic blends. Custom dye houses have reported good results even on trickier fiber blends, thanks in part to our tight dispersion control and residue-free behavior during soaping and neutralization. Wherever quality assurance targets call for narrow ΔE tolerances, C-2R matches or outperforms in direct side-to-side comparisons.
Traceability matters, not only to auditors but to plant managers and designers. By keeping synthesis and packaging in-house, we can verify every container’s production path, from raw monomers to final dispatch. Each shipment comes from tracked lots, with test records and origin data that can be accessed by the end user when needed. Buyers have the confidence that there’s full production data on file, and no mystery blends or relabeling happen along the route from our plant to their facility.
Direct partnerships with mills and printers mean we receive feedback about subtle shifts in process or market demands without a long lag. This dialogue with operators, not just procurement offices, feeds back into our ongoing R&D investment. More than once, customer insights have triggered a reaction tweak or filter step, helping us refine the C-2R profile year after year. By controlling both synthesis and downstream application support, we deliver consistent quality with transparency rare among upstream manufacturers.
No technical spec sheet can substitute for lived production experience. Dyeing is hands-on work; line managers and operators face dozens of variables each shift. We learned early on that troubleshooting requires direct support, immediate shade samples, and honest reporting about process outcomes, not just numbers on paper. Our support team, made up of experienced dyers and plant chemists, backs every container of C-2R, sharing tips for both batch and continuous processes.
Years of on-site support convinced us that practical training and process updates go hand-in-hand with dye quality. We respond to reports about pH fluctuation or build-up control with tailored troubleshooting. When users report unexpected results, we re-test using identical conditions, willingly adjusting recommendations for wash-off temperature or liquor ratios. This real-world engagement helped us build the kind of trust not common across the industry – a trait our longest-standing partners name as the reason they stick by the Neuter Yellow C-2R model even in tight market cycles.
Modern dye manufacturing stands at a turning point. Most customers now ask not just whether a color performs, but what impact its production leaves behind. We see this transformation not as an obstacle, but as a call to improve. Over the last five years, investment in recycling and closed-loop controls reduced our total environmental loading, while continued process innovation slashed both waste volumes and energy use per ton produced. C-2R, often chosen as a reference dye in pilot projects for sustainable dyeing, stands as proof that performance and sustainability can remain compatible.
Sourcing raw materials ethically, managing waste streams, and transparent product stewardship become non-negotiables for us, not merely regulation-driven requirements. Customers, particularly those serving brands with global reach, need genuine assurances and accessible data regarding each input’s journey. Our willingness to open production records or share third-party verification wins business and builds reputational capital beyond the value of any single shipment.
Long-term exposure to the ever-shifting textile landscape convinced us that product reliability wears the strongest armor against uncertainty. Economic cycles, raw material bottlenecks, and green chemistry trends all shape what customers expect from a core dye like Neuter Yellow C-2R. Setting a high bar for process control and responsiveness to user feedback helped us stay ahead of disruptions, from sudden demand spikes to tightening quality norms imposed by major end users.
You do not stay in a tough business through luck. Our success in producing Neuter Yellow C-2R grows out of thousands of hours of hands-on plant work, careful attention to technical data and, most of all, listening to the men and women who run the world’s dyehouses. Every tankful we ship carries that accumulated experience. Buyers get not only a chemical, but a trusted partner behind every kilogram, ready to adapt and deliver. Neuter Yellow C-2R, as we see it from the factory floor, stands for consistent color, strong processability, and real-world reliability, batch after batch, year after year.