2-Hydroxy-5-[[4'-[(2-hydroxy-3,6-disulfo-1-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]benzoic acid trisodium salt is a complex organic compound with a unique chemical structure. It is characterized by its color-changing properties in response to different pH levels, making it a useful indicator in various applications.
6548-26-1
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Basic information
- Product Name: 2-Hydroxy-5-[[4'-[(2-hydroxy-3,6-disulfo-1-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]benzoic acid trisodium salt
- Synonyms: 2-Hydroxy-5-[[4'-[(2-hydroxy-3,6-disulfo-1-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]benzoic acid trisodium salt;C.I.22280;C.I.Direct Red 18;Benzoic acid, 2-hydroxy-5-((4'-((2-hydroxy-3,6-disulfo-1-naphthalenyl)azo)(1,1'-biphenyl)-4-yl)azo)-, trisodium salt
- CAS NO:6548-26-1
- Molecular Formula: C29H20N4O10S2.3Na
- Molecular Weight: 717.6
- EINECS: N/A
- Product Categories: N/A
- Mol File: 6548-26-1.mol
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Chemical Properties
- Melting Point: N/A
- Boiling Point: N/A
- Flash Point: N/A
- Appearance: /
- Density: N/A
- Refractive Index: N/A
- Storage Temp.: N/A
- Solubility: N/A
- CAS DataBase Reference: 2-Hydroxy-5-[[4'-[(2-hydroxy-3,6-disulfo-1-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]benzoic acid trisodium salt(CAS DataBase Reference)
- NIST Chemistry Reference: 2-Hydroxy-5-[[4'-[(2-hydroxy-3,6-disulfo-1-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]benzoic acid trisodium salt(6548-26-1)
- EPA Substance Registry System: 2-Hydroxy-5-[[4'-[(2-hydroxy-3,6-disulfo-1-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]benzoic acid trisodium salt(6548-26-1)
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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: 6548-26-1(Hazardous Substances Data)
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6548-26-1 Usage
Uses
Used in pH Indicator Applications:2-Hydroxy-5-[[4'-[(2-hydroxy-3,6-disulfo-1-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]benzoic acid trisodium salt is used as a pH indicator due to its color-changing properties in response to acidic and alkaline environments. It changes from red to blue light under acidic conditions and from pink to purple under alkaline conditions.
Used in Dye Industry:
2-Hydroxy-5-[[4'-[(2-hydroxy-3,6-disulfo-1-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]benzoic acid trisodium salt is used as a dye in the textile and other industries due to its vibrant color and resistance to light fading and staining.
Used in Analytical Chemistry:
2-Hydroxy-5-[[4'-[(2-hydroxy-3,6-disulfo-1-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]benzoic acid trisodium salt can be used in analytical chemistry as a reagent for the detection and quantification of various substances, taking advantage of its color-changing properties.
Standard:
2-Hydroxy-5-[[4'-[(2-hydroxy-3,6-disulfo-1-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]benzoic acid trisodium salt has been assigned an ISO standard rating of 3, indicating its performance in terms of acid resistance, alkali resistance, light fastness, soaping, water fading, and stain fading.
Preparation
4-(4-Aminophenyl)benzenamine double nitriding, first with 2-Hydroxybenzoic acid coupling, again with 3-Hydroxynaphthalene-2,7-disulfonic acid coupling.Standard
Acid ResistanceFading
StainISO
4Check Digit Verification of cas no
The CAS Registry Mumber 6548-26-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,5,4 and 8 respectively; the second part has 2 digits, 2 and 6 respectively.Calculate Digit Verification of CAS Registry Number 6548-26:
(6*6)+(5*5)+(4*4)+(3*8)+(2*2)+(1*6)=111
111 % 10 = 1
So 6548-26-1 is a valid CAS Registry Number.
6548-26-1Upstream product
6548-26-1Downstream Products
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2-Hydroxy-5-[[4'-[(2-hydroxy-3,6-disulfo-1-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]benzoic acid trisodium salt
