Explore our premium grade dyestuffs designed to deliver exceptional fastness, stability, and vibrance across rigorous industrial environments.
Analyzing the molecular framework, synthesis routes, and high-performance metrics of Basic Yellow 2 (Auramine O).
Auramine Yellow, also scientifically categorized under Color Index (C.I.) as Basic Yellow 2 (commonly known as Auramine O, CAS No. 2465-27-2), is a highly valued diarylmethane dye. Defined by its intense, fluorescent yellow brilliance, this chemical compound offers excellent affinity to substrates containing negative charged polymers. The core chemical structure comprises a diarylcarbenium chromophore, which allows it to absorb light in the blue spectrum (maximum absorption λmax around 430 nm) and emit a striking, highly visible yellow hue.
Because of its basic character, the dye molecules dissociate in aqueous solution to yield cationic complexes. This property dictates its high bonding efficiency with anionic fibers, unbleached wood pulp, kraft fibers, and various polymers.
| Technical Index | Standard Specification |
|---|---|
| Color Index Name | C.I. Basic Yellow 2 (Auramine O) |
| CAS Number | 2465-27-2 |
| Molecular Formula | C17H22ClN3 |
| Appearance | Golden Yellow Powder / Concentrated Liquid |
| Strength | 100% / 120% / Customized standard strength |
| Solubility in Water | ≥ 30 g/L (at 80°C) |
| Fastness (on Acrylic/Paper) | Light: 4-5, Washing: 4, Rubbing: 4 |
SEO Information Gain Insight: Unlike standard grade dyestuffs, our specialized production process limits residual impurities, keeping organic volatiles and primary aromatic amines to a minimum. This enables compliance with increasingly restrictive international market controls for heavy chemical applications.
Analyzing key supply challenges and strategic sourcing requirements for global chemical procurement departments.
Industrial end-users in regions like Europe, North America, and South-East Asia require strict compliance regarding the continuity of high-volume chemical supply. Sunrise Chem Group addresses this demand by maintaining extensive manufacturing capacities and automated raw material controls, ensuring that fluctuations in base diarylmethane precursors do not disrupt client supply chains.
Modern procurement guidelines demand low concentrations of heavy metals (such as Zinc, Lead, and Arsenic). Our Auramine Yellow formulations undergo automated chromatography and atomic absorption testing to ensure compliance with strict ecological criteria, ensuring safety in packaging and industrial textile products.
By offering customizable packaging options (such as 25kg drums, bulk bags, or customized liquid intermediate solutions) coupled with optimized logistics routes from Tianjin Port, we minimize handling, transit times, and demurrage costs for international buyers.
Tianjin Sunrise Chem Group specializes in manufacturing high-quality dyestuffs. Our product catalog includes Direct dyes, Acid dyes, Basic dyes, Sulphur dyes, Solvent dyes, Liquid dyes, and Fluorescent dyes.
Backed by decades of industry and export experience, we have built a reputation for reliability and excellence, serving clients from diverse sectors including denim, textile, leather, paper, and plastic. We always highly focus on goods quality and stability. Each shipment is tested before sending to port. ZDHC Level 3 and GOTS certificates ensure your quality is guaranteed.
We pride ourselves on offering customized solutions. Our team of experts works closely with clients to understand their unique needs and delivers tailored products and services. We actively seek strategic partnerships to expand our reach and enhance our offerings. Collaborate with us to explore mutual growth opportunities.
Cooperating with textile and paper mills for many years shows that the factory has established a strong and reliable business relationship. This kind of long-term collaboration can bring numerous benefits, such as consistent orders, shared resources, and mutual support. It also indicates that the factory has a good track record of delivering quality products and meeting the needs of its partners.
Our mission is to drive business growth by providing reliable and customized products. Our goal is to make a significant contribution to our customers' success by consistently delivering first-class products and exceptional customer service. By building lasting partnerships, we strive to be a catalyst for our clients' success.
With years of experience, we have successfully established strong partnerships in many countries. Our dedication to meeting global demands and exceeding customer expectations has earned us a reputation as a reliable supplier worldwide.
Environmental protection is the cornerstone of our innovation. We dedicate ourselves to providing clients with eco-friendly, high-quality colorants that balance productivity with environmental harmony, driving the industry towards a more sustainable development path while delivering high-performance products—for a greener textile industry and a sustainable future.
The ZDHC program is a collaborative effort by leading brands, retailers, and suppliers in the textile and footwear industry to reduce the use of hazardous chemicals. The focus of this certification is on eliminating the release of hazardous chemicals into the environment throughout the entire supply chain. Achieving ZDHC certification indicates that our company has implemented robust chemical management procedures and has met the stringent requirements for chemical handling, wastewater treatment, and pollution prevention.
The Global Organic Textile Standard (GOTS) is a certification that ensures the organic status of textiles from the harvesting of raw materials to environmentally and socially responsible manufacturing. The GOTS certification guarantees that the textiles are made from organic fibers, that chemical inputs are minimized, and that strict environmental and labor standards are met throughout the production process. GOTS certified products are considered to be sustainable, safe, and ethical.
How Auramine Yellow formulations optimize brightness and dye binding for multiple industrial sectors.
In the pulp and paper industry, Auramine Yellow (Basic Yellow 2) is widely utilized for coloring wood pulp, tissue paper, kraft paper, and paperboard. It forms quick ionic bonds with lignin and cellulosic fibers, delivering exceptional color yield and minimizing backwater contamination during the wet-end process.
For synthetic fabrics, particularly polyacrylonitrile (acrylic) fibers and certain silk formulations, Basic Yellow 2 provides deep coloration. Its high affinity ensures that dyed fabrics retain color fastness during washing and light exposure, maintaining standard textile quality.
Sunrise Auramine Yellow formulations are also utilized in the production of household items like mosquito coils, where thermal stability during combustion is critical. Our dyes disperse evenly, ensuring reliable dye stability under high temperatures.
A detailed view of our high-demand specialty dye formulations distributed worldwide.
We not only produce and export dyes and pigments but also prioritize long-term cooperation with our customers, providing services that meet industrial standards.
One of the main reasons why customers choose us is the stable supply of dyes we provide. We have developed efficient manufacturing processes to ensure a continuous supply of our products. Our factories feature state-of-the-art equipment and a knowledgeable workforce, which enables us to fulfill the most demanding orders. With us, you can begin your manufacturing journey with confidence knowing that dye availability will not be an issue.
Apart from a steady supply, the quality of our dyes is another reason why we stand out in the market. We, SUNRISE CHEM, take pride in our commitment to producing dyes that consistently meet high standards of quality. Our experienced technicians carefully monitor the manufacturing process, ensuring that each batch of dyes is tested for color fastness, durability, and other essential parameters.
We firmly believe in building relationships with our clients based on trust and mutual benefit. We know that our customers' success is our success, so we are committed to providing quality services to meet their needs. Our dedicated customer support team is on hand to address any questions or concerns you may have. Contact us today and let's embark on a journey to success together.
Answering common technical, regulatory, and practical inquiries for procurement officers and chemical engineers.
High-purity solutions engineered for wood, paper, textile, and concrete coloration systems.
Sunrise
