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4-amino-5-hydroxy-3-[[4'-[[4-hydroxy-2-[(o-tolyl)amino]phenyl]azo][1,1'-biphenyl]-4-yl]azo]-6-[(4-sulphophenyl)azo]naphthalene-2,7-disulphonic acid, sodium salt is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

98705-48-7

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98705-48-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 98705-48-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,7,0 and 5 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 98705-48:
(7*9)+(6*8)+(5*7)+(4*0)+(3*5)+(2*4)+(1*8)=177
177 % 10 = 7
So 98705-48-7 is a valid CAS Registry Number.

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