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1213434-91-3

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1213434-91-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1213434-91-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,3,4,3 and 4 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1213434-91:
(9*1)+(8*2)+(7*1)+(6*3)+(5*4)+(4*3)+(3*4)+(2*9)+(1*1)=113
113 % 10 = 3
So 1213434-91-3 is a valid CAS Registry Number.

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