Explore our premium synthetic dyestuff and pigment series designed for high performance and longevity.
As a leading OEM Acid Red 73 Manufacturer, Tianjin Sunrise Chem Group ensures precision synthesis parameters to produce Crocein Scarlet MOO of unmatched stability. Chemically designated under CAS No. 5413-75-2 and C.I. 27290, Acid Red 73 is a disazo dye that delivers vibrant, stable, and highly uniform red shades. The synthesis path involves a dual diazotization process, binding diazo-deactivated aromatic rings to naphthalene-based coupling agents. This precise chemical engineering results in an anionic chromophore characterized by exceptional binding affinity to nitrogenous matrices and hydroxylated substrates.
Our factory utilizes high-grade precursors under strict temperature-controlled diazotization processes to eliminate unwanted byproducts. This optimization yields a colorant with minimal inorganic salt content, ensuring premium performance in high-precision industries such as premium paper dyeing, automotive leather tanning, and wood finish coloration.
| Property Parameter | Value / Range Specification | Operational Importance |
|---|---|---|
| C.I. Number | C.I. Acid Red 73 (Crocein Scarlet MOO) | Universal classification standard for dye formulation. |
| CAS Registry Number | 5413-75-2 | Chemical Identification Database registration. |
| Molecular Formula | C22H14N4Na2O7S2 | Precisely structured diazo groups for chromophore integrity. |
| pH Stability Range | 3.5 – 9.0 | Maintains brilliant red hues under both acidic and mild alkaline environments. |
| Solubility in Water | 30 g/L (at 90°C) | Ensures homogeneous dissolution and zero clog issues in automated spray systems. |
| Light Fastness Rating | 4 - 5 (ISO Blue Wool Standard) | Resists fading from UV and ambient light exposure. |
| Leveling Performance | Excellent | Prevents patchiness or color deviations on substrates. |
Tianjin Sunrise Chem Group specializes in manufacturing high-quality dyestuffs. Our extensive 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 in our advanced testing facilities before sending to the port. Our certification compliance with ZDHC Level 3 and GOTS certificates makes your quality and ecological safety 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.
Addressing supply chain risks, purity constraints, and compliance in colorant procurement.
Industrial dye users require consistency. Sunrise avoids production downtime by running high-efficiency automated lines with secured precursor supplies, guaranteeing uninterrupted shipments year-round.
To access markets in Europe and North America, dyes must strictly comply with eco-toxicological standards. Our products pass rigorous tests, satisfying REACH and EPA MRSL chemical benchmarks.
Color variation ruins commercial runs. Our factory tests every batch using computerized spectrophotometers, assuring shade tolerances within strict delta E margins.
How our Acid Red 73 meets specifications across major industrial sectors.
Acid Red 73 has an excellent affinity for natural protein fibers. Its sulfonic acid groups chemically bond with amino groups on wool and silk fibers under acidic conditions, ensuring strong color yield, deep penetration, and high washing resistance.
Used to produce intense, grain-highlighting wood stains and varnishes. Highly soluble in glycol ethers and water-based systems, it integrates easily with protective lacquers to ensure smooth color coverage and stable lightfastness properties.
Perfect for heavy-gauge kraft paper, packaging materials, and artistic cardboards. It deposits evenly onto cellulosic pulps, providing bright shades that resist bleeding under wet conditions, while maintaining safe eco-profiles for packaging usage.
Our long-term collaboration with textile and paper mills is built on reliable infrastructure and consistent order fulfillment.
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 brings 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. If you are looking for reliable, high-quality Dyes, we invite you to choose us as your trusted partner.
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. Achieving ZDHC Level 3 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. This eliminates hazardous output at the root, making our chemical products completely safe for premium consumer lines.
Similarly, the Global Organic Textile Standard (GOTS) certification ensures the organic status of textiles from harvesting raw materials to environmentally and socially responsible manufacturing. The GOTS certification guarantees that our chemical inputs are minimized in environmental impact, ensuring our products are safe, sustainable, and ethical.
Our ongoing transition from batch reaction systems to state-of-the-art continuous flow synthesis.
By shifting to micro-channel reaction pathways, we reduce energy consumption by up to 35% while increasing the yields of active Acid Red 73 molecule chains, minimizing free-amine impurities.
Dye synthesis traditionally consumes significant water volumes. Our factory is rolling out advanced membrane filtration systems, recycling over 85% of process water directly back into the reaction loops.
Through screening feedstock chemicals, we guarantee that all synthesized batches of Crocein Scarlet MOO fall well below heavy metal threshold levels, complying with food-contact packaging standards.
In-depth responses from our laboratory technicians and export managers to guide your integration process.
Our standard commercial formulations of Acid Red 73 (Crocein Scarlet MOO) are produced at 100% strength relative to the standard reference sample. On demand, we also offer desalinated versions with low chloride and low sulfate concentrations, which are ideal for applications requiring high organic purity such as specialized inks and wood stains.
ZDHC (Zero Discharge of Hazardous Chemicals) Level 3 is the highest compliance level. It guarantees that our formulations do not contain prohibited industrial substances above MRSL limits. Buying ZDHC Level 3 certified Acid Red 73 ensures your finished textile, leather, or paper products will pass testing by major fashion and retail brands without risk of chemical contamination.
Acid Red 73 possesses an anionic charge structure, making it highly soluble in water and polar organic solvents. For wood coatings, it is best formulated with ethylene glycol monomethyl ether (EGME), diethylene glycol monobutyl ether, or alcohol-water mixtures. This delivers clean wood penetration without bleeding or precipitation under standard curing temperatures.
Every batch goes through pre-shipment analysis in our lab. We verify: color shade and strength vs. standard reference (by spectrophotometer), moisture levels, solubility in standard solvents, presence of heavy metals, and free arylamine limits. We issue a Certificate of Analysis (COA) with every container dispatch.
A comprehensive chemical portfolio designed to meet demanding industrial coloring guidelines.
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