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139718-89-1

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139718-89-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139718-89-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,7,1 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 139718-89:
(8*1)+(7*3)+(6*9)+(5*7)+(4*1)+(3*8)+(2*8)+(1*9)=171
171 % 10 = 1
So 139718-89-1 is a valid CAS Registry Number.

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