4-[[4-[(4-Amino-1-naphtyl)azo]-6-sulfo-1-naphtyl]azo]-1-naphthalenesulfonic acid disodium salt is a complex organic compound with a unique molecular structure. It is characterized by its brown color and its ability to produce a deep red color when dissolved in water. 4-[[4-[(4-Amino-1-naphtyl)azo]-6-sulfo-1-naphtyl]azo]-1-naphthalenesulfonic acid disodium salt also exhibits various properties when interacting with different chemicals, such as turning blue-black in strong sulfuric acid and deep red in the presence of strong hydrochloric acid or sodium hydroxide.

6548-25-0

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Basic information
1. Product Name: 4-[[4-[(4-Amino-1-naphtyl)azo]-6-sulfo-1-naphtyl]azo]-1-naphthalenesulfonic acid disodium salt
2. Synonyms: 4-[[4-[(4-Amino-1-naphtyl)azo]-6-sulfo-1-naphtyl]azo]-1-naphthalenesulfonic acid disodium salt;C.I.26310;C.I.Acid Black 27
3. CAS NO:6548-25-0
4. Molecular Formula: C30H19N5Na2O6S2
5. Molecular Weight: 0
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 6548-25-0.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: 4-[[4-[(4-Amino-1-naphtyl)azo]-6-sulfo-1-naphtyl]azo]-1-naphthalenesulfonic acid disodium salt(CAS DataBase Reference)
10. NIST Chemistry Reference: 4-[[4-[(4-Amino-1-naphtyl)azo]-6-sulfo-1-naphtyl]azo]-1-naphthalenesulfonic acid disodium salt(6548-25-0)
11. EPA Substance Registry System: 4-[[4-[(4-Amino-1-naphtyl)azo]-6-sulfo-1-naphtyl]azo]-1-naphthalenesulfonic acid disodium salt(6548-25-0)
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: 6548-25-0(Hazardous Substances Data)

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6548-25-0 Usage

Uses

Used in Dye Industry:
4-[[4-[(4-Amino-1-naphtyl)azo]-6-sulfo-1-naphtyl]azo]-1-naphthalenesulfonic acid disodium salt is used as a dye for its ability to produce a deep red color in water. Its light fastness, soaping fastness, and fastness to seawater make it a suitable candidate for various applications in the dye industry.
Used in Textile Industry:
In the textile industry, 4-[[4-[(4-Amino-1-naphtyl)azo]-6-sulfo-1-naphtyl]azo]-1-naphthalenesulfonic acid disodium salt is used as a colorant for its ability to produce a deep red color. Its fastness properties, such as resistance to fading and staining, make it suitable for use in fabrics and textiles.
Used in Chemical Industry:
4-[[4-[(4-Amino-1-naphtyl)azo]-6-sulfo-1-naphtyl]azo]-1-naphthalenesulfonic acid disodium salt can be used as a chemical intermediate in the synthesis of other compounds due to its unique molecular structure and reactivity with various chemicals.
Used in Analytical Chemistry:
4-[[4-[(4-Amino-1-naphtyl)azo]-6-sulfo-1-naphtyl]azo]-1-naphthalenesulfonic acid disodium salt's ability to change color in the presence of different chemicals makes it a potential candidate for use in analytical chemistry as an indicator or reagent in various chemical tests and assays.

Preparation

4-Aminonaphthalene-1-sulfonic acid diazo, and 8-Aminonaphthalene-2-sulfonic acid coupling, its product to diazo, and Naphthalen-1-amine coupling.

Standard

Light Fastness

Fading

Stain

AATCC

Check Digit Verification of cas no

The CAS Registry Mumber 6548-25-0 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 5 respectively.
Calculate Digit Verification of CAS Registry Number 6548-25:
(6*6)+(5*5)+(4*4)+(3*8)+(2*2)+(1*5)=110
110 % 10 = 0
So 6548-25-0 is a valid CAS Registry Number.

InChI:InChI=1/C30H21N5O6S2.2Na/c31-25-11-12-26(20-6-2-1-5-19(20)25)32-35-29-14-13-27(22-10-9-18(17-24(22)29)42(36,37)38)33-34-28-15-16-30(43(39,40)41)23-8-4-3-7-21(23)28;;/h1-17H,31H2,(H,36,37,38)(H,39,40,41);;/q;2*+1/p-2

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