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138186-81-9

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138186-81-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138186-81-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,1,8 and 6 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 138186-81:
(8*1)+(7*3)+(6*8)+(5*1)+(4*8)+(3*6)+(2*8)+(1*1)=149
149 % 10 = 9
So 138186-81-9 is a valid CAS Registry Number.

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