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1391503-91-5

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1391503-91-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1391503-91-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,9,1,5,0 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1391503-91:
(9*1)+(8*3)+(7*9)+(6*1)+(5*5)+(4*0)+(3*3)+(2*9)+(1*1)=155
155 % 10 = 5
So 1391503-91-5 is a valid CAS Registry Number.

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