Trisodium 8-hydroxy-7-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl]azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]naphthalene-1,6-disulphonate is a complex organic compound with the chemical formula C34H23N4Na3O9S3. It is a type of azo dye, characterized by its ability to form a colored complex when combined with certain metal ions. trisodium 8-hydroxy-7-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl]azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]naphthalene-1,6-disulphonate is known for its use in analytical chemistry, particularly in the determination of trace metal ions through a process called complexometry. It is also used as a reagent in various chemical assays and tests, providing a visual indication of the presence and concentration of specific metal ions in a solution. The compound's structure is defined by its naphthalene core, with multiple azo groups and sulphonate groups that contribute to its solubility and reactivity.

6655-96-5

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Basic information
1. Product Name: trisodium 8-hydroxy-7-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl]azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]naphthalene-1,6-disulphonate
2. Synonyms: trisodium 8-hydroxy-7-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl]azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]naphthalene-1,6-disulphonate;Trisodium 8-hydroxy-7-((4'-((1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl)azo)- 3,3'-dimethoxy (1,1'-biphenyl)- 4-yl)azo)naphthalene-1,6-disulfonate;3-[4'-(6-Anilino-1-hydroxy-3-sulfo-2-naphtylazo)-3,3'-dimethoxy-4-biphenylylazo]-4-hydroxy-2,5-naphthalenedisulfonic acid trisodium salt;8-Hydroxy-7-[[4'-[(1-hydroxy-6-phenylamino-3-sodiosulfo-2-naphthalenyl)azo]-3,3'-dimethoxy-1,1'-biphenyl-4-yl]azo]naphthalene-1,6-disulfonic acid disodium salt;Brilliant Copper Blue BW-40;C.I.24230
3. CAS NO:6655-96-5
4. Molecular Formula: C40H28N5Na3O13S3
5. Molecular Weight: 951.84033
6. EINECS: 229-684-0
7. Product Categories: N/A
8. Mol File: 6655-96-5.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: trisodium 8-hydroxy-7-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl]azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]naphthalene-1,6-disulphonate(CAS DataBase Reference)
10. NIST Chemistry Reference: trisodium 8-hydroxy-7-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl]azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]naphthalene-1,6-disulphonate(6655-96-5)
11. EPA Substance Registry System: trisodium 8-hydroxy-7-[[4'-[[1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl]azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]naphthalene-1,6-disulphonate(6655-96-5)
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: 6655-96-5(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 6655-96-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,6,5 and 5 respectively; the second part has 2 digits, 9 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 6655-96:
(6*6)+(5*6)+(4*5)+(3*5)+(2*9)+(1*6)=125
125 % 10 = 5
So 6655-96-5 is a valid CAS Registry Number.

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