84540-31-8 Usage
Uses
Used in Paper Printing and Textile Industries:
Disodium 8-hydroxy-7-[(4-nitrophenyl)azo]naphthalene-1,6-disulphonate is used as a dye or colorant agent for its strong staining properties, making it suitable for applications in the paper printing and textile industries.
Used as a pH Indicator:
In certain scientific experiments, disodium 8-hydroxy-7-[(4-nitrophenyl)azo]naphthalene-1,6-disulphonate is used as a pH indicator, taking advantage of its color-changing properties in response to different pH levels.
Used in Food Processing and Cosmetics (with restrictions):
Although its use is limited due to potential health concerns, disodium 8-hydroxy-7-[(4-nitrophenyl)azo]naphthalene-1,6-disulphonate is sometimes used in food processing and cosmetics as a colorant. However, it is important to note that its application in these industries is regulated and restricted to ensure safety.
Check Digit Verification of cas no
The CAS Registry Mumber 84540-31-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,5,4 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 84540-31:
(7*8)+(6*4)+(5*5)+(4*4)+(3*0)+(2*3)+(1*1)=128
128 % 10 = 8
So 84540-31-8 is a valid CAS Registry Number.
InChI:InChI=1/C16H11N3O9S2/c20-16-14-9(2-1-3-12(14)29(23,24)25)8-13(30(26,27)28)15(16)18-17-10-4-6-11(7-5-10)19(21)22/h1-8,17H,(H,23,24,25)(H,26,27,28)/b18-15-
