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HS Code |
855845 |
| Chemical Name | 4-Aminodiphenylamine-2-sulfonic acid |
| Molecular Formula | C12H12N2O3S |
| Molecular Weight | 264.30 g/mol |
| Appearance | Light brown to dark brown powder |
| Melting Point | Decomposes above 300°C |
| Solubility In Water | Slightly soluble |
| Cas Number | 81-11-8 |
| Synonyms | Acid Blue 113 intermediate; 2-Sulfo-4-aminodiphenylamine |
| Storage Conditions | Store in a cool, dry, and well-ventilated area |
| Hazard Classification | May cause irritation to skin, eyes, and respiratory tract |
As an accredited 4-Aminodiphenyamine-2-sulfonic acid factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 500g of 4-Aminodiphenylamine-2-sulfonic acid is packaged in a sealed amber glass bottle with a secure screw cap. |
| Shipping | 4-Aminodiphenylamine-2-sulfonic acid should be shipped in tightly sealed, chemically resistant containers. Store and transport in a cool, dry, well-ventilated area away from incompatible substances. Ensure compliance with all local, national, and international regulations. Label containers clearly and provide relevant hazard information for safe handling and emergency response during transit. |
| Storage | **4-Aminodiphenylamine-2-sulfonic acid** should be stored in a tightly closed container, in a cool, dry, and well-ventilated area, away from direct sunlight, moisture, and incompatible substances such as strong oxidizers. The storage area should be clearly labelled and access restricted to authorized personnel. Avoid contact with skin and eyes, and use appropriate personal protective equipment when handling. |
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Purity 99%: 4-Aminodiphenyamine-2-sulfonic acid with a purity of 99% is used in pharmaceutical intermediate synthesis, where it ensures high reaction yield and product consistency. Molecular weight 268.31 g/mol: 4-Aminodiphenyamine-2-sulfonic acid with a molecular weight of 268.31 g/mol is used in azo dye manufacturing, where it provides precise stoichiometric calculations and uniform color development. Melting point 280°C: 4-Aminodiphenyamine-2-sulfonic acid with a melting point of 280°C is used in high-temperature dye production processes, where it maintains thermal stability and prevents decomposition. Water solubility 10 g/L: 4-Aminodiphenyamine-2-sulfonic acid with water solubility of 10 g/L is used in textile dye formulations, where it enables ease of blending and homogeneous dispersion. pH stability range 4–9: 4-Aminodiphenyamine-2-sulfonic acid with pH stability in the range of 4–9 is used in inkjet ink development, where it ensures lasting color retention and formulation stability. Particle size D90 < 45 µm: 4-Aminodiphenyamine-2-sulfonic acid with a particle size D90 less than 45 µm is used in pigment dispersion, where it enhances smooth finish and minimizes clogging in application equipment. Stability temperature up to 120°C: 4-Aminodiphenyamine-2-sulfonic acid with stability temperature up to 120°C is used in plastics coloration, where it retains color integrity under moderate processing conditions. Free acid content < 0.2%: 4-Aminodiphenyamine-2-sulfonic acid with free acid content below 0.2% is used in surface coating applications, where it reduces corrosive effects and ensures film durability. Ash content < 0.1%: 4-Aminodiphenyamine-2-sulfonic acid with ash content less than 0.1% is used in electronic component encapsulation, where it minimizes contamination risks and supports high-purity requirements. Sulfonic group content ≥ 15%: 4-Aminodiphenyamine-2-sulfonic acid with sulfonic group content of at least 15% is used in specialty resin synthesis, where it improves solubility and functional group availability. |
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