Disperse Blue 257 is a red light blue dye that is commonly used for dyeing and printing of polyester materials. It is also suitable for polyester superfine fibers and has an excellent coloring rate and good fastness properties.
84931-03-3
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Basic information
- Product Name: Disperse Blue 257
- Synonyms: DISPERSE BLUE 257;Blue 3RF;C.I.Disperse Blue 257;Disperse Blue 3R-SF;Begacron Blue 3RSF;Desron Blue S-2RF;Kayalon Polyester Blue 3R-SF;Kiwalon Polyester Blue 3RF
- CAS NO:84931-03-3
- Molecular Formula: C21H23BrN6O5
- Molecular Weight: 519.35
- EINECS: N/A
- Product Categories: N/A
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Chemical Properties
- Melting Point: N/A
- Boiling Point: N/A
- Flash Point: N/A
- Appearance: /
- Density: N/A
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: Disperse Blue 257(CAS DataBase Reference)
- NIST Chemistry Reference: Disperse Blue 257(84931-03-3)
- EPA Substance Registry System: Disperse Blue 257(84931-03-3)
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Safety Data
- Hazard Codes: N/A
- Statements: N/A
- Safety Statements: N/A
- WGK Germany:
- RTECS:
- HazardClass: N/A
- PackingGroup: N/A
- Hazardous Substances Data: 84931-03-3(Hazardous Substances Data)
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84931-03-3 Usage
Uses
Used in Textile Industry:Disperse Blue 257 is used as a dye for polyester materials and polyester superfine fibers due to its excellent coloring rate and good fastness properties.
Standard:
Disperse Blue 257 has the following fastness properties according to ISO standards:
Ironing Fastness: 5
Light Fastness: 4-5
Persperation Fastness: 6
Washing Fastness: 5
It also has the following fading and staining properties:
Fading: 5
Stain: 5
Overall, Disperse Blue 257 is a versatile dye with good fastness properties, making it suitable for various applications in the textile industry.
Preparation
2-Cyano-4-nitro-6-bromoaniline diazo, and N-(3-(bis(2-methoxyethyl)amino)phenyl)acetamide?coupling.Standard
Ironing FastnessFading
StainISO
5Check Digit Verification of cas no
The CAS Registry Mumber 84931-03-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,9,3 and 1 respectively; the second part has 2 digits, 0 and 3 respectively.Calculate Digit Verification of CAS Registry Number 84931-03:
(7*8)+(6*4)+(5*9)+(4*3)+(3*1)+(2*0)+(1*3)=143
143 % 10 = 3
So 84931-03-3 is a valid CAS Registry Number.
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84931-03-3Downstream Products
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Disperse Blue 257
