Explore our high-performance dyestuffs and chemical agents engineered for superior fastness, stability, and color yield.
Chrysoidine (often chemically designated as Basic Orange 2, Chrysoidine Y, or Chrysoidine Monohydrochloride) is a synthetic cationic dye belonging to the azo dye chemical class. Its molecular formula is C12H13ClN4, representing a monocationic system stabilized by a chloride counter-ion. It has been valued for more than a century for its exceptionally vibrant orange-red hue and its rapid affinity to negatively charged polymeric substrates.
As a leading OEM Chrysoidine manufacturer and supplier, Tianjin Sunrise Chem Group ensures that the molecular purity, water insoluble residue, and moisture content are calibrated precisely to industrial requirements. Due to its dual primary amine groups, Chrysoidine exhibits high water solubility and superior binding capabilities to acidic fibers, lignified cellulosic materials, and proteinaceous structures like wool and raw hides.
In analytical contexts, Chrysoidine functions as a pH-dependent indicator, shifting visually across specific acidic boundaries. However, its primary industrial role remains that of an direct-acting colorant, providing profound depth of shade and cost-effective processing for paper, leather, and cotton-based substrates.
How market dynamics, regulatory standards, and geographical production centers dictate supply chain stability for basic dyes.
The global demand for Basic Orange 2 remains robust across South Asia, the Asia-Pacific region, Eastern Europe, and South America. Its highly cost-effective coloring attributes make it irreplaceable in packaging board production and the secondary processing of commercial paper stocks.
Modern enterprises no longer buy standard generic powders. Today's global buyers require customized salt-free preparations, dust-free granular forms to protect workers' respiratory health, and high-concentration liquid variants suited for automated dosing systems.
Navigating global compliance frameworks like EU REACH, Turkey's KKDIK, and US TSCA is crucial. Leading global brands prioritize chemical suppliers who actively manage hazardous impurities, free aromatic amines, and satisfy ecological benchmarks.
Tianjin Sunrise Chem Group specializes in manufacturing and exporting high-quality dyestuffs. Our product catalog spans across 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 solid reputation for reliability and excellence, serving clients from diverse sectors including denim, textile, leather, paper, and plastic.
Cooperating with textile and paper mills for many years shows that our factory has established a strong and reliable business relationship. This kind of long-term collaboration brings numerous benefits, such as consistent orders, shared resources, and mutual technical support. It also indicates that the factory has a good track record of delivering quality products and meeting the complex 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.
We always highly focus on the goods' quality and stability. Each shipment is rigorously tested before sending to the port. ZDHC Level 3 and GOTS certifications guarantee your peace of mind and quality compliance. 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 for a greener textile industry and a sustainable future.
China is home to the most integrated supply chain for raw chemical intermediates globally. By sourcing OEM Chrysoidine from Sunrise Chem Group, you tap into structural cost and quality efficiencies that cannot be matched by other regions:
This structural foundation ensures that our partners receive reliable products at highly optimized price points, maintaining margins for end-use formulations.




How Chrysoidine is formulated and applied across different manufacturing substrates for optimal performance.
Chrysoidine is widely utilized in dyeing unbleached kraft pulp, superstitious paper, and corrugated board. Cellulosic pulp containing high lignin concentrations possesses natural anionic sites that directly bind with the cationic molecules of Basic Orange 2.
Dyeing Protocol: Typically added directly to the pulper or the stock chest before refining. Optimal absorption occurs within a pH range of 4.5 to 5.5. Alum or size agents can be used as mordants to improve retention and water fastness, preventing color bleeding in transit or storage.
In the leather tannery, Chrysoidine provides deep penetrative shades of orange and golden brown on vegetable-tanned or chrome-tanned skins. Its cationic charge easily links with the carboxylate groups on the leather collagen matrix.
Dyeing Protocol: Applied in the drumming process after fatliquoring. To maximize depth, drumming temperature is kept between 45°C and 55°C. Acid fixation using formic acid ensures the color locks into the grain, boosting rub fastness and resistance to light degradation.
Chrysoidine's strong solubility in polar solvents (ethanol, glycol ethers) makes it a preferred colorant for high-end spirit-based wood stains, marker inks, and diagnostic laboratory staining protocols.
Dyeing Protocol: Dissolved in solvent matrices alongside resin binders. For wood applications, the high solubility guarantees deep penetration into wood fibers without raising the grain, revealing natural wood patterns under varnishes.
For international raw material buyers, procurement optimization goes beyond price. Ensuring chemical reliability, custom packing, and safe transport requires deep compliance monitoring.
We supply Chrysoidine in variable strengths ranging from 100% standard commercial strength up to 200% super-concentrated powders. Specifying the target strength prevents dilution errors in your local formulation units.
To prevent caking and clumping during sea transit, we package our products in multi-ply paper bags with PE inner liners, 25kg fiber/iron drums, or heavy-duty woven jumbo bags, customized with your commercial branding.
Ensure your batches are manufactured under ISO 9001/14001 guidelines and comply with Eco-Passport standard practices. We provide comprehensive safety sheets (SDS) and certificates of analysis (COA) for every shipment.
Expert answers to the most common questions regarding Chrysoidine properties, applications, safety, and supply chains.
Chrysoidine Y (Basic Orange 2) is synthesized via the coupling of aniline and m-phenylenediamine, resulting in a yellow-toned orange shade. Chrysoidine R (Basic Orange 1) utilizes ortho-toluidine in its synthesis route instead of aniline, creating a slightly redder hue. The choice depends on the specific target color match required by your clients.
ZDHC (Zero Discharge of Hazardous Chemicals) Level 3 is the highest level of conformity in the textile value chain. It proves that the manufacturing processes and raw chemical feedstocks used by Tianjin Sunrise Chem Group comply with the Manufacturing Restricted Substances List (MRSL). This protects your brands from supply disruptions and ensures compliance with global retailer standards.
Like most cationic basic dyes, Chrysoidine is sensitive to high concentrations of calcium and magnesium ions present in hard water, which can lead to precipitation. For optimal dissolution, we recommend dissolving the powder in warm soft water (40°C - 50°C) or adding small amounts of acetic acid to stabilize the dye solution prior to tank dilution.
When stored under cool, dry, well-ventilated warehouse conditions in its original unopened packaging, Chrysoidine maintains its stability and color strength for up to 36 months. Avoid direct exposure to sunlight, high heat, and damp environments to prevent product degradation or moisture absorption.
Yes. We provide complete OEM color matching, strength standardization, and specialty liquid blending. Customers can supply target swatches or chemical profiles, and our lab team will develop customized formulations that match your production specifications.
Complete your chemical supply chain with our range of high-fastness dyes, solvents, and specialty brighteners.