Disodium 3-[[2,2'-dimethyl-4'-[[4-[(phenylsulphonyl)oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-2,7-disulphonate is a complex organic compound with the chemical formula C34H24N4Na2O8S2. It is a disodium salt of a highly conjugated azo dye, characterized by its extended π-electron system and multiple sulfonate groups. disodium 3-[[2,2'-dimethyl-4'-[[4-[(phenylsulphonyl)oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-2,7-disulphonate is known for its strong color and is used in various applications, such as in the dyeing of textiles and as a pigment in the coloration of plastics and paints. Its chemical structure includes a naphthalene core with azo groups attached, which contribute to its color and stability. The disodium salt form indicates that it has two sodium ions associated with it, which can affect its solubility and reactivity in different media.

6470-38-8

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Basic information
1. Product Name: disodium 3-[[2,2'-dimethyl-4'-[[4-[(phenylsulphonyl)oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-2,7-disulphonate
2. Synonyms: disodium 3-[[2,2'-dimethyl-4'-[[4-[(phenylsulphonyl)oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-2,7-disulphonate;3-{{2,2''-Dimethyl-4''-{[4-(phenylsulfonyl)-oxy]-phenyl}-azo}-4-biphenylylazo;4-Hydroxy-3-[[4'-[[4-(phenylsulfonyloxy)phenyl]azo]-2,2'-dimethyl-1,1'-biphenyl-4-yl]azo]naphthalene-2,7-disulfonic acid disodium salt;C.I.23265;Supranol Scarlet FGN
3. CAS NO:6470-38-8
4. Molecular Formula: C36H26N4Na2O10S3
5. Molecular Weight: 816.78698
6. EINECS: 229-297-7
7. Product Categories: N/A
8. Mol File: 6470-38-8.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: disodium 3-[[2,2'-dimethyl-4'-[[4-[(phenylsulphonyl)oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-2,7-disulphonate(CAS DataBase Reference)
10. NIST Chemistry Reference: disodium 3-[[2,2'-dimethyl-4'-[[4-[(phenylsulphonyl)oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-2,7-disulphonate(6470-38-8)
11. EPA Substance Registry System: disodium 3-[[2,2'-dimethyl-4'-[[4-[(phenylsulphonyl)oxy]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxynaphthalene-2,7-disulphonate(6470-38-8)
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: 6470-38-8(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 6470-38-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,7 and 0 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 6470-38:
(6*6)+(5*4)+(4*7)+(3*0)+(2*3)+(1*8)=98
98 % 10 = 8
So 6470-38-8 is a valid CAS Registry Number.

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