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HS Code |
723375 |
| Cas Number | 989-38-8 |
| Molecular Formula | C32H22N6Na2O8S2 |
| Molar Mass | 722.67 g/mol |
| Ec Number | 213-580-2 |
| Appearance | Dark red powder |
| Solubility In Water | Soluble |
| Melting Point | Decomposes |
| Maximum Absorption Wavelength | 507 nm |
| Synonyms | Congo Red, Direct Red 1, C.I. 22120 |
| Iupac Name | sodium 3,3'-([1,1'-biphenyl]-4,4'-diyl)bis(4-aminonaphthalene-1-sulfonate) |
| Chemical Class | Azo dye |
| Odor | Odorless |
As an accredited Direct Red 1 factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Direct Red 1 is packaged in a sealed, labeled 500-gram plastic bottle, featuring hazard symbols, product name, and safety instructions. |
| Shipping | Direct Red 1 is shipped as a solid dye, typically packaged in sealed, moisture-resistant containers to prevent contamination and degradation. It should be clearly labeled with hazard information and handled according to relevant regulations. Store and transport in a cool, dry, well-ventilated area, away from incompatible materials and sources of ignition. |
| Storage | Store Direct Red 1 in a tightly sealed container in a cool, dry, and well-ventilated area, away from direct sunlight and sources of ignition. Keep it separated from incompatible substances such as strong oxidizers. Label containers clearly and handle with appropriate personal protective equipment to avoid skin or eye contact. Ensure proper spill control and waste disposal procedures are in place. |
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Purity 98%: Direct Red 1 with purity 98% is used in textile dyeing processes, where it provides high color intensity and uniform shade distribution. Molecular Weight 696.67 g/mol: Direct Red 1 with molecular weight 696.67 g/mol is used in paper coloration, where it ensures consistent tint and excellent lightfastness. Solubility in Water 60 g/L at 20°C: Direct Red 1 with solubility in water 60 g/L at 20°C is used in the manufacture of aqueous ink formulations, where it delivers superior dispersion and vibrant colors. Melting Point 300°C (decomposes): Direct Red 1 with melting point 300°C (decomposes) is applied in high-temperature dyeing of cellulosic fibers, where it maintains dye integrity and thermal stability. Particle Size 5 µm: Direct Red 1 with particle size 5 µm is used in pigmented coating applications, where it achieves enhanced surface coverage and color uniformity. pH Stability Range 5-9: Direct Red 1 with pH stability range 5-9 is utilized in water-based paint systems, where it enables stable coloration across variable pH conditions. Lightfastness Rating 4: Direct Red 1 with lightfastness rating 4 is used in printing ink production, where it ensures moderate resistance to fading under light exposure. Fatigue Resistance High: Direct Red 1 with high fatigue resistance is used in colorant preparation for synthetic fiber textiles, where it provides long-lasting color durability over repeated use. Stability Temperature 50°C: Direct Red 1 with stability temperature 50°C is used in liquid dye preparations, where it guarantees consistent performance during storage and transportation. Purity 99.5%: Direct Red 1 with purity 99.5% is used in analytical laboratory staining, where it achieves precise and reproducible results in tissue sample visualization. |
Competitive Direct Red 1 prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615651039172 or mail to sales9@bouling-chem.com.
We will respond to you as soon as possible.
Tel: +8615651039172
Email: sales9@bouling-chem.com
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