The CAS Registry Mumber 82925-84-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,9,2 and 5 respectively; the second part has 2 digits, 8 and 4 respectively. Calculate Digit Verification of CAS Registry Number 82925-84: (7*8)+(6*2)+(5*9)+(4*2)+(3*5)+(2*8)+(1*4)=156 156 % 10 = 6 So 82925-84-6 is a valid CAS Registry Number.
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