4,5-Dihydroxy-3-[[4-(phenylazo)phenyl]azo]naphthalene-1-sulfonic acid sodium salt is a complex organic compound with the chemical formula C24H16N3NaO6S. It is a sodium salt derivative of a naphthalene-based azo dye, characterized by the presence of two hydroxyl groups at the 4 and 5 positions, and an azo group connected to a phenyl ring at the 3 position. The azo group is further connected to another phenyl ring, which is also substituted with a phenylazo group. 4,5-Dihydroxy-3-[[4-(phenylazo)phenyl]azo]naphthalene-1-sulfonic acid sodium salt is known for its color properties and is used in various applications, such as in the dyeing and printing industries, due to its ability to produce vibrant colors. It is also used as a pH indicator, changing color in response to changes in acidity or alkalinity. The sodium salt form of the compound enhances its solubility in water, which is beneficial for its applications in aqueous solutions.

6226-93-3

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Basic information
1. Product Name: 4,5-Dihydroxy-3-[[4-(phenylazo)phenyl]azo]naphthalene-1-sulfonic acid sodium salt
2. Synonyms: 4,5-Dihydroxy-3-[[4-(phenylazo)phenyl]azo]naphthalene-1-sulfonic acid sodium salt;Azo Acid Violet AL;C.I.27500
3. CAS NO:6226-93-3
4. Molecular Formula: C22H16N4O5S.Na
5. Molecular Weight: 0
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 6226-93-3.mol
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: N/A
3. Flash Point: N/A
4. Appearance: /
5. Density: N/A
6. Refractive Index: N/A
7. Storage Temp.: N/A
8. Solubility: N/A
9. CAS DataBase Reference: 4,5-Dihydroxy-3-[[4-(phenylazo)phenyl]azo]naphthalene-1-sulfonic acid sodium salt(CAS DataBase Reference)
10. NIST Chemistry Reference: 4,5-Dihydroxy-3-[[4-(phenylazo)phenyl]azo]naphthalene-1-sulfonic acid sodium salt(6226-93-3)
11. EPA Substance Registry System: 4,5-Dihydroxy-3-[[4-(phenylazo)phenyl]azo]naphthalene-1-sulfonic acid sodium salt(6226-93-3)
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: 6226-93-3(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 6226-93-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,2,2 and 6 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 6226-93:
(6*6)+(5*2)+(4*2)+(3*6)+(2*9)+(1*3)=93
93 % 10 = 3
So 6226-93-3 is a valid CAS Registry Number.

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