Sulphon Black S, also known as C.I. Sulphur Black 1, is a synthetic organic dye belonging to the azo class. It is a dark black powder that is widely used in the dyeing and printing of textiles, particularly for cotton, wool, and silk. The dye is known for its excellent light fastness, high tinctorial strength, and good resistance to washing and rubbing. Sulphon Black S is produced through a complex chemical synthesis process involving the reaction of aromatic amines with diazotized sulfanilic acid. Due to its high molecular weight and complex structure, it exhibits a strong affinity for fibers, making it a popular choice in the textile industry. However, it is important to note that the use of such dyes may raise environmental concerns due to their potential impact on water quality and the need for proper disposal and treatment methods.

6492-58-6

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Basic information
1. Product Name: Sulphon Black S
2. Synonyms: Sulphon Black S;4-[[4-[(4-Aminophenyl)azo]-1-naphthalenyl]azo]-3-hydroxynaphthalene-2,7-disulfonic acid disodium salt;C.I.27230;C.I.Acid Black 23
3. CAS NO:6492-58-6
4. Molecular Formula:
5. Molecular Weight: 0
6. EINECS: N/A
7. Product Categories: N/A
8. Mol File: 6492-58-6.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: Sulphon Black S(CAS DataBase Reference)
10. NIST Chemistry Reference: Sulphon Black S(6492-58-6)
11. EPA Substance Registry System: Sulphon Black S(6492-58-6)
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: 6492-58-6(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 6492-58-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,9 and 2 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 6492-58:
(6*6)+(5*4)+(4*9)+(3*2)+(2*5)+(1*8)=116
116 % 10 = 6
So 6492-58-6 is a valid CAS Registry Number.

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