C.I. Disperse Blue 8, also known as Disperse Blue 8 or DB8, is a synthetic azo dye primarily used in the textile industry for dyeing synthetic fibers such as polyester, nylon, and acetate. It is characterized by its high solubility in water, good lightfastness, and excellent colorfastness properties. The chemical structure of C.I. Disperse Blue 8 consists of a diazo component and a coupling component, which react to form the azo chromophore responsible for its blue color. This dye is widely used in various applications, including printing, plastics, and paints, due to its vibrant hue and stability. However, it is important to note that, like many azo dyes, C.I. Disperse Blue 8 may have potential environmental and health concerns, and its use is regulated in some regions to minimize these risks.
81-47-0
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Basic information
- Product Name: C.I. Disperse Blue 8
- Synonyms: 1-Hydroxy-4-(3-hydroxymethyl-phenylamino)-anthraquinone;1-Hydroxy-4-(3-hydroxymethyl-anilino)-anthrachinon;
- CAS NO:81-47-0
- Molecular Formula: C21H15NO4
- Molecular Weight: 345.354
- EINECS: N/A
- Product Categories: N/A
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Chemical Properties
- Melting Point: 158 - 158.5 °C (ethanol)
- Boiling Point: N/A
- Flash Point: N/A
- Appearance: N/A
- Density: N/A
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: C.I. Disperse Blue 8(CAS DataBase Reference)
- NIST Chemistry Reference: C.I. Disperse Blue 8(81-47-0)
- EPA Substance Registry System: C.I. Disperse Blue 8(81-47-0)
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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: 81-47-0(Hazardous Substances Data)
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81-47-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81-47-0 includes 5 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 2 digits, 8 and 1 respectively; the second part has 2 digits, 4 and 7 respectively.Calculate Digit Verification of CAS Registry Number 81-47:
(4*8)+(3*1)+(2*4)+(1*7)=50
50 % 10 = 0
So 81-47-0 is a valid CAS Registry Number.
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C.I. Disperse Blue 8
