Violet BNP, also known as 1-(4-Nitrophenylazo)-2-naphthol, is an organic compound widely used as a dye in various applications. It is characterized by its deep violet color and is often employed in the textile, paper, and leather industries for coloring purposes. The chemical structure of Violet BNP consists of a naphthalene ring with a nitro group attached to a phenylazo group, which contributes to its color properties. It is important to note that due to its azo group, Violet BNP may pose certain health and environmental risks, and proper handling and disposal are necessary to mitigate potential hazards.

80539-34-0

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Basic information
1. Product Name: Violet BNP
2. Synonyms: C.I. 42581; C.I. Food Violet 3; sodium 4,4'-{[(4-{[4-(dimethylamino)phenyl][4-(dimethyliminio)cyclohexa-2,5-dien-1-ylidene]methyl}phenyl)imino]dimethanediyl}dibenzenesulfonate
3. CAS NO:80539-34-0
4. Molecular Formula: C₃₇H₃₆N₃NaO₆S₂
5. Molecular Weight: 705.818
6. EINECS: N/A
7. Product Categories: N/A
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: N/A
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: Violet BNP(CAS DataBase Reference)
10. NIST Chemistry Reference: Violet BNP(80539-34-0)
11. EPA Substance Registry System: Violet BNP(80539-34-0)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 80539-34-0(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 80539-34-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,5,3 and 9 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 80539-34:
(7*8)+(6*0)+(5*5)+(4*3)+(3*9)+(2*3)+(1*4)=130
130 % 10 = 0
So 80539-34-0 is a valid CAS Registry Number.

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