7,7'-[(4,6-dihydroxy-m-phenylene)diazo]bis(naphthalene-1,3-disulphonic) acid, compound with N,N'-di(o-tolyl)guanidine (1:4) is a complex organic compound with a unique structure that exhibits specific properties such as brown color, light fastness, and heat resistance. It has a melting point range of 175-205°C and is stable under ISO standards.
72208-28-7
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Basic information
- Product Name: 7,7'-[(4,6-dihydroxy-m-phenylene)diazo]bis(naphthalene-1,3-disulphonic) acid, compound with N,N'-di(o-tolyl)guanidine (1:4)
- Synonyms: Solvent Brown 20;7,7'-[(4,6-dihydroxy-m-phenylene)diazo]bis(naphthalene-1,3-disulphonic) acid, compound with N,N'-di(o-tolyl)guanidine (1:4);1,3-Naphthalenedisulfonic acid, 7,7'-[(4,6-dihydroxy-1,3-phenylene)bis(azo)]bis-, compd. with N,N'-bis(2-methylphenyl)guanidine (1:4);C.I. Solvent Brown 20;7,7'-[(4,6-dihydroxy-m-phenylene)diazo]bis(naphthalene-1,3-disulphonic) acid, compound with N,N'-di(o-tolyl)guanidine (1:4);7,7'-[(4,6-Dihydroxy-1,3-phenylene)bis(2,1-diazenediyl)]bis-1,3-naphthalenedisulfonic acid N,N'-Bis(2-methylphenyl)guanidine
- CAS NO:72208-28-7
- Molecular Formula: C26H18N4O14S4.4C15H17N3
- Molecular Weight: 1695.97
- EINECS: 276-477-6
- Product Categories: Organics
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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: 7,7'-[(4,6-dihydroxy-m-phenylene)diazo]bis(naphthalene-1,3-disulphonic) acid, compound with N,N'-di(o-tolyl)guanidine (1:4)(CAS DataBase Reference)
- NIST Chemistry Reference: 7,7'-[(4,6-dihydroxy-m-phenylene)diazo]bis(naphthalene-1,3-disulphonic) acid, compound with N,N'-di(o-tolyl)guanidine (1:4)(72208-28-7)
- EPA Substance Registry System: 7,7'-[(4,6-dihydroxy-m-phenylene)diazo]bis(naphthalene-1,3-disulphonic) acid, compound with N,N'-di(o-tolyl)guanidine (1:4)(72208-28-7)
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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: 72208-28-7(Hazardous Substances Data)
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72208-28-7 Usage
Uses
Used in Dye Industry:7,7'-[(4,6-dihydroxy-m-phenylene)diazo]bis(naphthalene-1,3-disulphonic) acid, compound with N,N'-di(o-tolyl)guanidine (1:4) is used as a dye for coloring various materials due to its brown color and light fastness properties.
Used in Chemical Industry:
7,7'-[(4,6-dihydroxy-m-phenylene)diazo]bis(naphthalene-1,3-disulphonic) acid, compound with N,N'-di(o-tolyl)guanidine (1:4) is used as a chemical intermediate for the synthesis of other organic compounds, taking advantage of its heat resistance and stability.
Used in Textile Industry:
7,7'-[(4,6-dihydroxy-m-phenylene)diazo]bis(naphthalene-1,3-disulphonic) acid, compound with N,N'-di(o-tolyl)guanidine (1:4) is used as a dye for textiles, providing colorfastness and resistance to fading.
Used in Paper Industry:
7,7'-[(4,6-dihydroxy-m-phenylene)diazo]bis(naphthalene-1,3-disulphonic) acid, compound with N,N'-di(o-tolyl)guanidine (1:4) is used as a dye for coloring paper products, offering colorfastness and resistance to environmental factors.
Used in Plastics Industry:
7,7'-[(4,6-dihydroxy-m-phenylene)diazo]bis(naphthalene-1,3-disulphonic) acid, compound with N,N'-di(o-tolyl)guanidine (1:4) is used as a colorant for plastics, providing a brown color and enhancing the appearance of plastic products.
Used in Cosmetics Industry:
7,7'-[(4,6-dihydroxy-m-phenylene)diazo]bis(naphthalene-1,3-disulphonic) acid, compound with N,N'-di(o-tolyl)guanidine (1:4) is used as a colorant in cosmetics, offering a natural brown color and improving the aesthetic appeal of cosmetic products.
Standard
Light FastnessMelting point
StableISO
PoorCheck Digit Verification of cas no
The CAS Registry Mumber 72208-28-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,2,0 and 8 respectively; the second part has 2 digits, 2 and 8 respectively.Calculate Digit Verification of CAS Registry Number 72208-28:
(7*7)+(6*2)+(5*2)+(4*0)+(3*8)+(2*2)+(1*8)=107
107 % 10 = 7
So 72208-28-7 is a valid CAS Registry Number.
72208-28-7Upstream product
72208-28-7Downstream Products
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7,7'-[(4,6-dihydroxy-m-phenylene)diazo]bis(naphthalene-1,3-disulphonic) acid, compound with N,N'-di(o-tolyl)guanidine (1:4)
