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HS Code |
731387 |
| Chemical Name | Disodium 5-((E)-(4-dimethylaminophenyl)diazenyl)-6-hydroxy-2-naphthalenesulfonate |
| Common Name | Neusol Red 3G |
| Color Index | CI 16255 |
| Appearance | Red powder |
| Solubility In Water | Soluble |
| Application | Food coloring, beverage industry |
| Molecular Formula | C20H18N4Na2O7S2 |
| Molecular Weight | 552.49 g/mol |
| Cas Number | 3567-69-9 |
| Stability | Stable under normal conditions |
As an accredited Neusol Red 3G factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Neusol Red 3G is packaged in a sealed 25 kg fiber drum, with product labeling, batch number, and safety handling instructions. |
| Shipping | Neusol Red 3G should be shipped in tightly sealed, labeled containers to prevent leakage and contamination. Transport in accordance with local and international regulations for hazardous chemicals. Avoid exposure to direct sunlight, heat, and moisture. Handle with appropriate safety equipment and ensure documentation accompanies the shipment for safe and compliant delivery. |
| Storage | Neusol Red 3G should be stored in a tightly closed container, in a cool, dry, and well-ventilated area, away from direct sunlight, heat sources, and incompatible materials such as strong oxidizing agents. Protect the chemical from moisture and ensure proper labeling. Avoid excessive dust generation and handle using appropriate personal protective equipment to prevent skin and eye contact. |
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Purity 98%: Neusol Red 3G with purity 98% is used in textile dyeing applications, where it ensures vibrant and uniform coloration across synthetic fibers. Particle Size 10 microns: Neusol Red 3G with particle size 10 microns is used in plastics masterbatch production, where it promotes excellent pigment dispersion and consistent shade intensity. Heat Stability 220°C: Neusol Red 3G with heat stability of 220°C is used in automotive coatings, where it provides sustained color retention under high-temperature processing. Solubility in Water 10 g/L: Neusol Red 3G with solubility in water of 10 g/L is used in inkjet ink formulations, where it enables rapid dissolution and minimizes nozzle clogging. Lightfastness Grade 6: Neusol Red 3G with lightfastness grade 6 is used in outdoor paints, where it delivers long-lasting resistance to fading from UV exposure. pH Stability 4–9: Neusol Red 3G with pH stability from 4 to 9 is used in liquid detergent colorants, where it maintains color strength and stability across varying formulation conditions. |
Competitive Neusol Red 3G prices that fit your budget—flexible terms and customized quotes for every order.
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At our plant, every production run of Neusol Red 3G tells the story of experience measured in decades rather than years. Long before this pigment earned its stripes in finished products around the world, we faced the bruises and lessons of scaling synthesis, optimizing purity, and keeping supply reliable. Our R&D approached the chemistry from the foundational level, making sure that from raw material handling and reaction control right up to filtration and drying, we could deliver the consistent color strength that manufacturers demand. This product didn’t arrive by accident, or by accident of commodity trading — it’s shaped through hands-on process control, troubleshooting on the factory floor, and adaptation to evolving environmental and regulatory curves.
Neusol Red 3G stands as a high-performance synthetic azo dye, designed for applications where stable, vivid red coloration is crucial. Our typical supply form is a fine, free-flowing powder, suited for scaling from pilot to full-line production with ease. Key specifications originate from our emphasis on reproducibility: color index, particle size distribution, pure and stable shade, heat resistance, and resistance to light and chemicals — each confirmed on real production samples, not batch wishful thinking.
Neusol Red 3G carries a red hue leaning toward bluish rather than orange-tinted reds, bringing sharpness in blends and formulating. In technical coatings, inks, plastics, and textile dye applications, we watch for the same concerns any actual chemical processor faces: potential migration, color fade, reaction with finished product matrices, behavior under processing heat, and reactivity with additives. We’ve run enough test lots through customer equipment to know it delivers color consistently, runs without clumping, and disperses efficiently even within high-speed mixing environments.
Nothing ruins a pigment batch like the presence of trace metals, off-shade byproducts, variable moisture, or oversized particles leftover from missed filtration. At the synthesis step, our team checks for reagent freshness, impurity carryover, and cleans reactor lines to prevent cross-contamination from previous runs. The heart of the purification process relies on a balanced sequence of washing, neutralization, and precise drying that targets optimal residual moisture. Final sieving ensures no agglomerates pass into the final drum. Random sample pulls at each stage protect the downstream value-chain, saving customers reworking and scrap. Side-by-side with our QA lab, the production line verifies that every drum maintains standardized batch integrity over time. Deliveries match certification data, because our controls and internal audits track yield losses and process drift in real time.
End-users bring us their strictest criteria. That might mean pushing concentration for deeper reds in food packaging films, or achieving wash-fastness in textiles exposed to harsh alkaline environments. In printing inks, the challenge lies in securing both brilliance and print-stability during high-speed runs — all while minimizing solvent swelling and plate wear. Our partners in plastics require not just color fastness, but that the pigment disperses evenly under high-shear compounding without nullifying processing modifiers or plasticizers. These are not theoretical demands: they walk into our technical center as production hurdles that need fixing, not marketing fluff.
Neusol Red 3G has stepped into roles ranging from PVC and polyolefins, through water-based and solvent-based ink systems, through textile dye baths subjected to variable pH, up to architectural coatings struck by sunlight year-round. We’ve worked side-by-side with formulating chemists from the fields, ensuring compatibility with diverse additive packages and surfactant choices. Through thick and thin — and through market disruptions — our clients tell us Neusol Red 3G fits into flexible setups, low-dust manufacturing, and continuous-feed processes without snags.
As pigment makers, we stay ahead of the changing compliance environment, because any slip can put a customer’s end products in regulatory crosshairs. We keep primary and secondary reference standards, archive batch records, and periodically re-confirm heavy metals content, allergenic residues, and banned substance absence according to current legislation. RoHS, EN71, and REACH frameworks — we’re tested against these, not just promised. No red without trust, and no trust without deep documentation and regular audit cycles. Responsible management carries through every drum and shipment.
We maintain strict attention to effluent and dust containment at the production stage, backing up our compliance with investments in air and water filtration equipment and process water recycling. Direct discharge to the environment does not enter our operating philosophy. Our people undergo regular HSE training, both to keep their own exposure minimal and to assure every handling guide passes muster. We supply detailed usage and handling instructions informed by firsthand experience with accidental release prevention and emergency first-aid, because risk reduction matters at every step. For end users, safe and sustainable coloration begins far upstream.
It’s easy for new entrants to compete on single-batch price or to sell so-called “Red 3G” variants based on spec-list alone. That route crumbles when consistency is needed for years at scale. No shortcut engineering can replicate the fingerprint of quality that emerges from invested infrastructure, experienced operators, and stable raw supply chains. One example: we maintain forward contracts not only with primary dye intermediates suppliers, but build redundancy with individually screened sources, to protect our output from sudden feedstock volatility.
Our approach to color and performance stability develops through repeated feedback loops with real end-users, on real production lines, adjusting sensitivity to the kind of subtle variations that never show up in small-batch lab data. The result is a colorant that shows reliable shade, controlled strength, and no surprises over time, even when global disruptions hit logistics or regulations shift unexpectedly. We’ve seen panicked requests from buyers caught with off-shade lots, or contamination claims from inconsistent sources. That’s why our focus lands squarely on daily batch verification, regular recalibration of instruments, and continuous process improvement rather than resting on standard claims.
Every product batch conveys both our knowhow and a commitment to technical engagement. We don’t just ship pigment and leave clients fending for themselves on processing problems or color mismatches. Our formulation advisors and technical liaisons remain on-call to share troubleshooting advice, whether a customer faces unexpected foaming during dispersion, agglomerate issues after storage, or rival colorants bleeding into base resin. We run side trials, analyze cause, and help adapt processing recommendations. That collaboration creates a shared value chain — from consistency in color to economic stability for partners managing line changes or new end uses.
Questions don’t just arrive from a single sector. In textile dye applications, for instance, some operators need guidance integrating Red 3G into existing acid or reactive dye processes, keeping migration to a minimum without overspending on stabilization agents. Ink manufacturers in high-speed gravure or flexo operations bring up flush stability and pigment wetting, where too coarse a grind size or batch inconsistency shows itself in printing flaws and machine stoppages. Plastics compounding teams worry about colorant affecting heat performance or triggering unwanted viscosity changes. We step into each scenario equipped with lab-scale and full-line trial data, sharing our own learning curve to avoid repeated industry mistakes.
Any pigment supplier can tout a technical datasheet or match a specified color point across a handful of lots. The difference shows after months or years of repeated runs, where process drift or shifts in raw quality — exacerbated by haphazard sourcing or procedural shortcuts — cause headaches: inconsistent hues from drum to drum, poor blending, or end-use non-compliance. Long-standing partnerships reveal whether pigment performance holds up across time and shipment, or whether small, undetected problems snowball under real-world pressures.
With Neusol Red 3G, we send out each batch knowing the upstream work, technical adjustment, and supply chain discipline involved. Our confidence isn’t built on hopes or generic promises, but on documented process designs, daily operational records, and the sweat equity of our people taking pride in finishing every shipment right. Machines alone do not guarantee lasting performance — they do it only when run by operators who catch an off-tone batch before shipping, or who trace and fix the root cause of any deviation before it becomes a problem downstream.
Colors and coloring techniques move forward; regulatory targets shift; economic uncertainties disrupt plans. Over years, we’ve been pushed to enhance Neusol Red 3G’s properties in step with next-gen requirements: improved dispersibility for low-VOC and waterborne systems, tighter control of particle size for demanding microdispersion applications, and more durable heat and solvent resistance for emerging plastics platforms. Feedback from end-users, not distant market studies, shapes where we target adjustments and improvements.
During supply disruptions or changes to local regulatory frameworks, we balance the need for quality and compliance without shorting deliveries or adding uncertainty to our partners’ operations. That sometimes means absorbing price fluctuations or building safety stock rather than shifting risk to customers. The marketplace appreciates suppliers who adapt and communicate, not just react at the last minute. Our doors stay open for technical visits, offsite audits, and co-development sessions, because our ongoing investment in Red 3G needs to meet actual production reality as expectations change.
The real credibility of Neusol Red 3G as a pigment lies not in a test tube or a shelf datasheet, but in the hands of those running continuous lines, mixing 24-tonne lots, or printing commercial packaging at industrial speeds. We don’t dodge hard questions about shade drift, impurities, or processing anomalies. We take calls, run tests, and send feedback that draws from a grounding in physical manufacturing, not theoretical experience. Our staff sees each drum leave the facility knowing mistakes cost everyone in the value chain — not just on paperwork, but in real lost value, downtime, and end-user trust.
So, whether you process coatings, print inks, plastics, or are developing novel coloration systems, our Red 3G model stands as an invitation to real, service-backed chemical partnership. The pigment comes alongside our technical knowledge and sincere commitment to informed feedback. In a world of commodity-first, price-driven supply chains, those qualities carry forward by the reputation and repeat business we’ve earned from industry partners — grounded in hands-on experience, technical humility, and daily hard work.
Neusol Red 3G represents more than a batch number or a certificate. Every kilogram reflects trials, audits, and hands-on adjustments aimed at protecting the downstream user. We invest in continuous improvement, based on our own production experience rather than just market demand. Our team stands ready to back you up, troubleshoot your processes, and work through your quality needs with the kind of rigor and honesty that only a dedicated manufacturer can deliver.
From synthesizing intermediates to packing the final kilo for shipment, every link in our process chain stands as proof that real manufacturing skill, careful process engineering, and persistent technical support make a difference. We invite you to join our network of partners who expect — and receive — Red 3G pigment that meets real-world needs, batch after batch, year after year.