1,4-Naphthalenedione, 2-chloro-5,8-dihydroxy-3-(phenylamino)-, also known as CI Direct Black 22 or Direct Black 22, is a chemical compound with the molecular formula C16H11ClN2O4. It is a direct dye, which is a type of synthetic dye used for coloring various materials, including textiles, leather, and paper. 1,4-Naphthalenedione, 2-chloro-5,8-dihydroxy-3-(phenylamino)- is characterized by its dark black color and is known for its high solubility in water. It is synthesized through a series of chemical reactions involving naphthalene, chlorination, and subsequent substitution with phenylamine. Direct Black 22 is widely used in the dyeing industry due to its excellent colorfastness and ease of application. However, it is also important to note that, like many dyes, it may have environmental and health concerns associated with its use and disposal, necessitating proper handling and regulation.
84611-69-8
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Basic information
- Product Name: 1,4-Naphthalenedione, 2-chloro-5,8-dihydroxy-3-(phenylamino)-
- Synonyms:
- CAS NO:84611-69-8
- Molecular Formula: C16H10ClNO4
- Molecular Weight: 315.713
- 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: N/A
- Density: N/A
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: 1,4-Naphthalenedione, 2-chloro-5,8-dihydroxy-3-(phenylamino)-(CAS DataBase Reference)
- NIST Chemistry Reference: 1,4-Naphthalenedione, 2-chloro-5,8-dihydroxy-3-(phenylamino)-(84611-69-8)
- EPA Substance Registry System: 1,4-Naphthalenedione, 2-chloro-5,8-dihydroxy-3-(phenylamino)-(84611-69-8)
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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: 84611-69-8(Hazardous Substances Data)
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Check Digit Verification of cas no
The CAS Registry Mumber 84611-69-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,6,1 and 1 respectively; the second part has 2 digits, 6 and 9 respectively.Calculate Digit Verification of CAS Registry Number 84611-69:
(7*8)+(6*4)+(5*6)+(4*1)+(3*1)+(2*6)+(1*9)=138
138 % 10 = 8
So 84611-69-8 is a valid CAS Registry Number.
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1,4-Naphthalenedione, 2-chloro-5,8-dihydroxy-3-(phenylamino)-
