The CAS Registry Mumber 330832-10-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,3,0,8,3 and 2 respectively; the second part has 2 digits, 1 and 0 respectively. Calculate Digit Verification of CAS Registry Number 330832-10: (8*3)+(7*3)+(6*0)+(5*8)+(4*3)+(3*2)+(2*1)+(1*0)=105 105 % 10 = 5 So 330832-10-5 is a valid CAS Registry Number.
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