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disodium 4,4'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis[iminocarbonyl(2-hydroxy-4,1-phenylene)azo]]bis(3-hydroxynaphthalene-1-sulphonate) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

70247-69-7

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70247-69-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70247-69-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,2,4 and 7 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 70247-69:
(7*7)+(6*0)+(5*2)+(4*4)+(3*7)+(2*6)+(1*9)=117
117 % 10 = 7
So 70247-69-7 is a valid CAS Registry Number.

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