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1289384-99-1

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1289384-99-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1289384-99-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,9,3,8 and 4 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1289384-99:
(9*1)+(8*2)+(7*8)+(6*9)+(5*3)+(4*8)+(3*4)+(2*9)+(1*9)=221
221 % 10 = 1
So 1289384-99-1 is a valid CAS Registry Number.

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