The CAS Registry Mumber 82081-00-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,0,8 and 1 respectively; the second part has 2 digits, 0 and 0 respectively. Calculate Digit Verification of CAS Registry Number 82081-00: (7*8)+(6*2)+(5*0)+(4*8)+(3*1)+(2*0)+(1*0)=103 103 % 10 = 3 So 82081-00-3 is a valid CAS Registry Number.
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