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| Customization: | Available |
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| CAS NO.: | 5281-04-9 |
| Formula: | C18h12n2o6s.Ca |
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Key Features & Advantages | |
Vivid Color: | Offers a bright bluish-red shade with high tinctorial strength, complying with the standard magenta for four-color process printing . |
Excellent Cost-Performance: | Provides an outstanding balance of color quality and affordability, ideal for price-sensitive applications. |
Good Dispersibility: | Ensures easy and uniform mixing in various binding systems, improving production efficiency . |
Wide Compatibility: | Suitable for a range of applications including plastics like PVC and LDPE, as well as various printing ink systems. |
Reliable Quality: | Consistent batch-to-batch quality ensures predictable and reproducible results in your final products. |
Technical Parameters | |||
Product Name | Specification / Description | ||
Chemical Name | Calcium Salt of 3-Hydroxy-4-[(4-methyl-2-sulfophenyl)azo]-2-naphthalenecarboxylic acid | ||
Chemical Composition | C18H12N2O6S·Ca | ||
CAS No. | 5281-04-9 /C.I.15850:1 | ||
Color Index | Pigment Red 57:1 (PR57:1) | ||
Appearance | Bluish-Red Powder | ||
Lightfastness | 4-5 Level | ||
Heat Resistance | 160℃ - 250℃ (depending on application) | ||
Applications | Printing Inks, Plastics, Coatings, Rubber, Paper | ||

* Plastics: | Coloring for PVC, LDPE, and rubber products . It presents a bright bluish-red color in plastic products and masterbatches . |
* Printing Inks: | Especially for various printing inks, and its shade complies with the magenta standard for four-color process printing . It exhibits good flow properties and stability in printing inks . |
* Coatings: | For industrial and decorative paints . |
* Other Uses: | Used in synthetic fibers, stationery, and crayons . |

Q: Can I get a sample for testing? |
A: Yes, we provide free samples for quality evaluation. You only need to cover the freight cost. |
Q: What is the MOQ? |
A: The standard MOQ is 500 kg, but we are open to discussion for initial cooperation. |
Q: Is it suitable for food contact materials? |
A: Please contact our technical team for specific compliance requirements based on your application. |