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203118-28-9

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203118-28-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 203118-28-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,1,1 and 8 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 203118-28:
(8*2)+(7*0)+(6*3)+(5*1)+(4*1)+(3*8)+(2*2)+(1*8)=79
79 % 10 = 9
So 203118-28-9 is a valid CAS Registry Number.

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