7-Acetylamino-4-hydroxy-3-(2-sulfophenylazo)naphthalene-2-sulfonic acid disodium salt is a bright orange compound that is soluble in water and ethanol, displaying a gold orange color. It exhibits various color changes when interacting with different chemicals, such as turning golden yellow in the presence of strong sulfuric acid and red light orange brown when mixed with a thick sodium hydroxide solution.
3443-89-8
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Basic information
- Product Name: 7-Acetylamino-4-hydroxy-3-(2-sulfophenylazo)naphthalene-2-sulfonic acid disodium salt
- Synonyms: 3-[2-(Sodiosulfo)phenylazo]-4-hydroxy-7-(acetylamino)-2-naphthalenesulfonic acid sodium salt;7-(Acetylamino)-4-hydroxy-3-[(2-sulfophenyl)azo]-2-naphthalenesulfonic acid disodium salt;7-Acetylamino-4-hydroxy-3-(2-sulfophenylazo)naphthalene-2-sulfonic acid disodium salt;C.I.17750;C.I.Acid Orange 27
- CAS NO:3443-89-8
- Molecular Formula:
- Molecular Weight: 0
- EINECS: N/A
- Product Categories: N/A
- Mol File: 3443-89-8.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: 7-Acetylamino-4-hydroxy-3-(2-sulfophenylazo)naphthalene-2-sulfonic acid disodium salt(CAS DataBase Reference)
- NIST Chemistry Reference: 7-Acetylamino-4-hydroxy-3-(2-sulfophenylazo)naphthalene-2-sulfonic acid disodium salt(3443-89-8)
- EPA Substance Registry System: 7-Acetylamino-4-hydroxy-3-(2-sulfophenylazo)naphthalene-2-sulfonic acid disodium salt(3443-89-8)
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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: 3443-89-8(Hazardous Substances Data)
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3443-89-8 Usage
Uses
Used in Textile Industry:7-Acetylamino-4-hydroxy-3-(2-sulfophenylazo)naphthalene-2-sulfonic acid disodium salt is used as a dye for wool and silk fibers due to its bright orange color and solubility in water and ethanol. Its ability to change color when interacting with different chemicals makes it a versatile option for various dyeing applications.
Standard:
7-Acetylamino-4-hydroxy-3-(2-sulfophenylazo)naphthalene-2-sulfonic acid disodium salt meets the following standards for light fastness, soaping, perspiration fastness, oxygen bleaching, and fastness to seawater:
Light Fastness: ISO 5-6
Soaping: 1-2
Perspiration Fastness: 3
Oxygen Bleaching: 2-3
Fastness to Seawater: 1-2
These standards indicate the compound's performance and resistance to various conditions, making it suitable for use in the textile industry.
Preparation
2-Aminobenzenesulfonic acid diazo, and ?7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling.Standard
Light FastnessFading
StainISO
5-6Check Digit Verification of cas no
The CAS Registry Mumber 3443-89-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,4,4 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.Calculate Digit Verification of CAS Registry Number 3443-89:
(6*3)+(5*4)+(4*4)+(3*3)+(2*8)+(1*9)=88
88 % 10 = 8
So 3443-89-8 is a valid CAS Registry Number.
InChI:InChI=1/C18H15N3O8S2.2Na/c1-10(22)19-12-6-7-13-11(8-12)9-16(31(27,28)29)17(18(13)23)21-20-14-4-2-3-5-15(14)30(24,25)26;;/h2-9,23H,1H3,(H,19,22)(H,24,25,26)(H,27,28,29);;/q;2*+1/p-2
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7-Acetylamino-4-hydroxy-3-(2-sulfophenylazo)naphthalene-2-sulfonic acid disodium salt
