© 2026 Anhui Liwei Chemical Co., Limited,
All Right Reserved
|
HS Code |
833486 |
| Chemical Name | Solvent Yellow 157 |
| Cas Number | 8063-56-9 |
| Molecular Formula | C36H34N2O4 |
| Molecular Weight | 558.67 g/mol |
| Color | Yellow |
| Appearance | Yellow powder |
| Solubility | Soluble in organic solvents |
| Melting Point | Approx. 103°C |
| Application | Used as a dye in inks, coatings, and plastics |
| Synonyms | C.I. Solvent Yellow 157, Sudan Yellow 3G |
As an accredited Solvent Yellow 157 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Solvent Yellow 157 is packaged in a 25 kg net weight fiber drum with an inner plastic liner, sealed for moisture protection. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL) for Solvent Yellow 157: Typically loaded with 10-12 metric tons packed in 25kg bags on pallets. |
| Shipping | Solvent Yellow 157 is shipped in tightly sealed containers, protected from light, moisture, and incompatible substances. It should be stored in a cool, ventilated area and handled according to standard chemical regulations. Ensure all packaging is clearly labeled with hazard and handling information to comply with national and international transport requirements. |
| Storage | Solvent Yellow 157 should be stored in a cool, dry, and well-ventilated area, away from direct sunlight and sources of ignition. Keep the container tightly closed and clearly labeled. Store separately from strong oxidizing agents and acids. Avoid moisture and heat to prevent degradation. Ensure appropriate spill containment and follow chemical safety guidelines to minimize exposure and environmental contamination. |
| Shelf Life | Solvent Yellow 157 has a typical shelf life of 5 years when stored in tightly sealed containers under cool, dry conditions. |
Competitive Solvent Yellow 157 prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615365186327 or mail to sales3@liwei-chem.com.
We will respond to you as soon as possible.
Tel: +8615365186327
Email: sales3@liwei-chem.com
Flexible payment, competitive price, premium service - Inquire now!
On our factory floor, Solvent Yellow 157 has earned its place over years of trial, adjustment, and satisfaction from our end-users. Years ago, we started producing this dye in response to rising calls from plastics and ink manufacturers searching for superior stability and color brilliance. The early batches gave us valuable feedback. We adjusted our filtration, tested new raw material sourcing strategies, and optimized blending. With our technical staff consulted end-to-end, we ended up with a dye grade rich in color and trusted for results in polycarbonate, polystyrene, ABS resins, and printing inks.
Each time a customer called with a technical challenge, we have gone back to the drawing board, aiming not just for compliance but for higher purity and fewer impurities—reducing unwanted side tones or migration in the finished product. Solvent Yellow 157, with its molecular formula C18H16N4O2 and Colour Index number 12055, has shown consistent results across a diverse set of applications. Decades of dye manufacture in our plant taught us to recognize the details that matter. Pure color tone and good thermal stability stand out. Our experienced hands can catch batch deviation early, and ongoing lab validation always backs up our commitment. We know that when colleagues from wire and cable insulation or from cosmetics applications visit, they’re looking for that depth of yellow shade, that strength, and that reliability under process heat. Each of these is something we’ve learned to deliver batch after batch.
As a monoazo dye, Solvent Yellow 157 fills a specific demand for clarity and rich, golden-yellow shade in polar and non-polar plastics. With a melting range around 168–170°C and insolubility in water, the pigment disperses well into resins without clumping or streaking. Strong solvent resistance assures the vibrancy holds even under processing or in demanding end environments. We’ve noticed in our own lines, careful attention to particle fineness has a marked effect on dispersion, especially in transparent plastics used in automotive lighting and instrument panels.
The grain we supply is consistently fine, thanks to ongoing investment in filtration and milling technology. This directly translates to fewer filter blockages and fewer line stoppages at our customers’ extrusion facilities, something we have tested internally and observed in close collaboration with partners. Compounding and masterbatch producers point out that Solvent Yellow 157 stands out over similar products, such as Solvent Yellow 93 or Solvent Yellow 56, especially when used in complex polymer blends like PMMA or engineering ABS. Our dye achieves higher clarity and avoids the greenish undertones that cheaper yellows sometimes introduce. We attribute this to strict molecular synthesis control and exclusion of unstable intermediates.
Most of our annual output finds its way into plastic coloring, either as part of masterbatch concentrates or directly in the polymer melt. It’s not just a matter of hitting a Pantone shade—what matters out in the real world is processability and end-use performance. Solvent Yellow 157 has met regular demands for plastic items exposed to light and heat, including garden furniture, automotive applications, and electrical housings. Ink producers, needing strong migration fastness for packaging and publication inks, also rely on our dye.
Technicians from printing ink factories have visited us, looking to solve blooming issues and minimize leaching. Through joint testing, we have observed that Solvent Yellow 157 offers low migration risk in typical ink carriers, including nitrocellulose, polyamide, and polyurethane systems. In flexographic and gravure systems, its strength has minimized pigment loadings, reducing formulation costs and edge bleed.
From time to time, a specialty coater or laminator will challenge us with requests for special fade resistance. Through controlled synthesis and grading, we deliver batches with superior lightfastness compared to commodity grade yellows. Years of dialogue with testing labs and downstream QC teams have given us a practical appreciation for the importance of reproducibility in weathering tests.
Markets constantly offer a menu of yellows, ranging from the affordable but less pure (like Solvent Yellow 93) to those that only perform well in very narrow windows. Solvent Yellow 157 occupies its own niche. From a manufacturer’s viewpoint, the biggest strength we’ve observed in this dye is balance. It produces a richer, more golden yellow (CI 12055) while avoiding the muddy top tones or orange cast found in Solvent Yellow 56 and others. With regular pulls from our QC tanks and feedback from customers, we know our lot-to-lot consistency minimizes production waste, which stands out compared to the uneven batches sometimes encountered with smaller importers or brokers.
For printers and compounders switching over from alternatives, Solvent Yellow 157 often reduces reformulation headaches. Its migration resistance and thermal stability reduce downstream complaints about shade shift or color drifting during processing. In our lab, we test our dye alongside other common solvent yellows under varying extrusion temperatures and polymer shear conditions. In nearly every case, color intensity loss remains minimal, making Solvent Yellow 157 the preferred selection for heat-exposed applications such as automotive lenses or LED housings.
Other products may claim similar performance, but our records and technical bulletins show fewer yellowing side-products, better resistance to polymer shrinkage, and more predictability in mass tone. We’ve had customers share cost-per-kilo breakdowns where Solvent Yellow 157’s performance enables them to use less total dye, saving significant amounts over time.
Carrying out dye synthesis at industrial scale, we recognize the real challenges that make or break consistent performance. Each lot of Solvent Yellow 157 passes through stringent raw material screening. We source our intermediates from established partners tracking back to years of mutual trust. Skepticism reigns over cheap intermediates or short-cut syntheses—the headaches they have caused for both us and our end customers are well documented.
After batch synthesis, our technicians sample each tank for hue strength, shade, and solubility. Particles get analyzed using both classical and new laser diffraction methods. We operate with a clear bias for tighter particle size control to avoid filter clogging issues downstream. Any deviance in melting range or tint strength gets picked up by spectrophotometric analysis, and we mark those lots as off-spec. Over the years, this vigilance has kept our production returns and customer claims at a minimum, further reinforcing trust.
Our quality assurance routines have become almost second nature. With batch traceability, any question about shade drift or contamination gets an answer inside hours. Many competitors sacrifice QA discipline for cost, but we know from experience that small defects quickly show up in customer applications. Our process improvements, including closed transfer systems and improved dryer controls, let us maintain the clarity of Solvent Yellow 157 even when scaling up production, a fact that ink and plastic processors have noticed in both lab and line trials.
Over years of technical support, we’ve had exposure to nearly every challenge possible in dye application for plastics and inks. Processors running high-throughput extruders routinely mention how Solvent Yellow 157 resists clumping, which preserves equipment and minimizes unscheduled stoppages. A masterbatch customer running polycarbonate told us that the lower dust and better flow characteristics compared to cheaper solvent dyes reduced their clean-up costs significantly.
In injection molding plants, color drift and yellowing during high-heat cycles once posed real pain points. By working with customers onsite, we proved Solvent Yellow 157 maintained shade stability and survived multiple melt cycles. This means less scrap, faster turnarounds, and fewer batch adjustments. On the printing ink side, especially in flexible packaging, the low migration feature has protected brand owners from costly product recalls due to unwanted dye leaching, particularly into food-grade applications.
Some applications push our dye to its limits. LED bulb housing suppliers, for instance, demanded fade-free and yellow-true tones even after years of continuous exposure. Our technical team returned to the lab, tested accelerated aging, and refined purification steps to protect the core molecular purity. The positive results in third-party testing show our on-site optimizations translated directly to enhanced performance in the field.
Staying ahead in dye manufacture means keeping an eye on industry health and regulatory change. In recent years, consumer demands and regional regulations moved swiftly. We’ve seen an uptick in requests for compliance with REACH and RoHS guidelines, especially for electronics sectors. From personal experience, navigating these frameworks means ongoing investment—testing for heavy metals, persistent organic pollutants, and verifying every shipment’s compliance.
Our compliance team carries out annual audits and participates in industry forums. Rather than just aiming for minimum acceptable thresholds, we work toward exceeding reference benchmarks. The dye houses that focus on long-term reputation never cut corners on heavy metal and aromatic amine content, lessons we have reinforced with every international customer audit.
As companies move production overseas or diversify supply chains, product traceability becomes crucial. We’ve designed our batches and documentation not just for meeting local requirements, but also for traceability whether the customer manufactures toys for the EU, packaging for North America, or plastic pipes for the Middle East.
Manufacturing solvent dyes traditionally came with an environmental burden. We’ve had to rethink water and energy usage, along with waste handling and emissions control. On our site, hot reaction water flows back into a treatment loop, and solvent recovery reduces hazardous material discharge. We worked with process engineers to redesign reactors for higher yield and less byproduct formation. Our waste checks and regular third-party audits keep us focused on minimizing our environmental footprint, not just for compliance but because local communities demand it.
Solvent Yellow 157 ranks favorably in terms of biodegradability and low toxicity for its class, based on both in-house and independent testing. Responsible choices in raw material sourcing and investment in improved synthesis technology have had a downstream impact, reducing the need for post-synthesis remediation and lowering overall lifecycle emissions. Practical improvements like closed transfer tanks and upgraded scrubbing systems continue to reduce odors and workplace exposures. All these actions stem from the direct input of both our plant workers and our neighbors, who expect the dye industry to move toward better standards with each passing year.
No discussion of Solvent Yellow 157 from the manufacturer’s perspective would be complete without acknowledging operational setbacks and troubleshooting. Even with mature process controls, unexpected events can arise—clogged filters due to a subtle upstream process shift, erratic color readings when the ambient humidity rises, or customer lines reporting batch compatibility issues due to polymer formulation tweaks. Each time, our response is rooted in direct, hands-on analysis. In one instance, a routine check in our dispatch area caught slight particle settling, leading us to implement new mixing tank circulation protocols and solve the issue without impacting our customers.
When a partner called in with extruder fouling from a competing dye, we supplied trial runs of fresh Solvent Yellow 157. Their production yield improved, operating hours extended, and complaints about color speckling disappeared. Practical field tests like these beat marketing claims every day. Real improvements—the ones that keep a production manager returning to your dye—come from a clear two-way dialogue between manufacturer and user.
We recognize no product remains static. Regular feedback and site audits from both our customers and our own team spur ongoing improvements. In our hands, Solvent Yellow 157 has become not just a line item but a partnership with the industry, supported by the lessons that only hands-on manufacturing can teach. Our R&D team works closely with end-users to tweak dispersant systems and refine heat profiles, so the product continues to meet tougher standards and customer expectations.
Markets shift and customer demands keep evolving. End-use performance, responsible production, and regulatory scrutiny set new boundaries every year. Experience has taught us to stay flexible and proactive in our approach. As a manufacturer, we maintain direct lines of communication with processors, regularly updating them about formulation tweaks or batch improvements. Investment in R&D, continued training of our staff, and collaboration with end-users power both our current quality and the improvements we aim for.
With Solvent Yellow 157, we offer more than a yellow dye. Years of experience in the chemical industry underpins each kilo shipped, from the hands-on work in our plant to the batch reports in our labs. As industry challenges emerge—tougher environmental demands, need for even cleaner shades, stricter food-contact regulations—we’re committed to real partnerships and technical progress. The growing success of Solvent Yellow 157 comes from knowledge gained through production, direct field support, and a practical commitment to our customers.
Solvent Yellow 157’s track record for color clarity, stability in processing, and compliance with evolving standards reflects the lived experience of manufacturing and the real feedback loop shared with customers. We see its future not as a static commodity, but as an ongoing dialogue between innovation, manufacturing excellence, and industry partnerships—principles we honor every day on our factory floor.
