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138880-42-9

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138880-42-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138880-42-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,8,8 and 0 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 138880-42:
(8*1)+(7*3)+(6*8)+(5*8)+(4*8)+(3*0)+(2*4)+(1*2)=159
159 % 10 = 9
So 138880-42-9 is a valid CAS Registry Number.

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